CalAmp Wireless Networks 2424046-001 T-96SR UHF Telemetry Transceiver/Modem User Manual Cover dmf

CalAmp Wireless Networks Corporation T-96SR UHF Telemetry Transceiver/Modem Cover dmf

Contents

Transceiver Manual

SYNTHESIZED UHF TELEMETRY UNITPART NO. 242-3412-XX0Second PrintingAugust 1997Supersedes 001-3412-001 December 1996Part No. 001-3412-002 8-97 Printed in U.S.A.
SYNTHESIZED UHF TELEMETRY UNITPART NO. 242-3412-XYZCopyright 1997 by the Johnson Data Telemetry Corporation.The Johnson Data Telemetry Corporation designs and manufactures radios and radio modems to serve a wide variety of data communication needs. The Johnson Data Telemetry Corporation produces equipment for the fixed data market including SCADA systems for utilities, petrochemical, waste and fresh water management markets and RF boards for OEM applications in the Radio Frequency Data Capture market. In addition, the Johnson Data Telemetry Corporation provides wireless commu-nication solutions to the mobile data market serving public safety, utilities and industrial users.DATA TELEMETRY PRODUCT WARRANTYThe manufacturer's warranty statement for this product is available from your product supplier or from the Johnson Data Telemetry Corporation, 299 Johnson Avenue, PO Box 1733, Waseca, MN 56093-0833. Phone (507) 835-8819.WARNINGThis device complies with Part 15 of the FCC rules and Industry Canada RSS-119, issue 5. Operation is subject to the condi-tion that this device does not cause harmful interference. In addition, changes or modification to this equipment not expressly approved by the Johnson Data Telemetry Corporation could void the user's authority to operate this equipment (FCC rules, 47CFR Part 15.19).DO NOT allow the antenna to come close to or touch, the eyes, face, or any exposed body parts while the radio is transmitting.DO NOT operate the radio near electrical blasting caps or in an explosive atmosphere.DO NOT operate the radio unless all the radio frequency connectors are secure and any open connectors are properly termi-nated.DO NOT allow children to operate transmitter equipped radio equipment.SAFETY INFORMATIONProper operation of this radio will result in user exposure below the Occupational Safety and Health Act and Federal Commu-nication Commission limits.The information in this document is subject to change without notice.™ Johnson Data Telemetry is a trademark of the Johnson Data Telemetry Corporation.™ RNET is a trademark of Motorola Inc.
1TABLE OF CONTENTS1 GENERAL INFORMATION1.1 SCOPE OF MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11.2 EQUIPMENT DESCRIPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1DL-3412 WITH LOADER BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1DL-3412 WITH RNET™ MODEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2DL3412 WITH DL3296 MODEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2DM-3412 SYNTHESIZER PROGRAMMING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21.3 TRANSCEIVER IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21.4 ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21.5 PART NUMBER BREAKDOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31.6 FACTORY CUSTOMER SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31.7 PRODUCT WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31.8 REPLACEMENT PARTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31.9 FACTORY RETURNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-42 INSTALLATION2.1 PRE-INSTALLATION CHECKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12.2 INTERFACING WITH DATA EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1DM3412 (RF Board) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13 PROGRAMMING3.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13.2 SYNTHESIZER DATA PROTOCOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1D-WORD CALCULATION (24-BITS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2C-WORD CALCULATION (24-BITS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2B-WORD CALCULATION (24-BITS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3A0-WORD CALCULATION (24-BITS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43.3 RECEIVE TO TRANSMIT SEQUENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-63.4 TRANSMIT TO RECEIVE SEQUENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-63.5 RADIO DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-74 CIRCUIT DESCRIPTION4.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1SYNTHESIZER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1RECEIVER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1TRANSMITTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1LOADER BOARD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14.2 SYNTHESIZER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1VOLTAGE-CONTROLLED OSCILLATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3VCO AND REFERENCE OSCILLATOR MODULATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4CASCODE AMPLIFIERS/VCO (Q851/Q852). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4AMPLIFIER (Q853) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4VOLTAGE FILTER (Q901) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4VCO FREQUENCY SHIFT (Q841) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4SYNTHESIZER IC (U811) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5LOCK DETECT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
2TABLE OF CONTENTS4.3 RECEIVER CIRCUIT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5HELICAL FILTER (Z201), RF AMPLIFIER (Q201) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5MIXER (U211). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6FIRST LO AMPLIFIER (Q301). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6BUFFER (Q211), CRYSTAL FILTER (Z221/Z222), IF AMP (Q231). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6SECOND LO AMP/TRIPLER (Q401). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6SECOND MIXER/DETECTOR (U241) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-64.4 TRANSMITTER CIRCUIT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7BUFFER (Q501). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7PRE-DRIVER (Q511) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7FINAL (U521), COMPARATOR (U111C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7ANTENNA SWITCH (CR561, CR562). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8TRANSMIT KEY-UP CONTROL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-84.5 VOLTAGE REGULATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8+9.6 AND +5.5V REGULATED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-85 SERVICING5.1 GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1PERIODIC CHECKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1SURFACE-MOUNTED COMPONENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1REPLACEMENT PARTS LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1TCXO MODULE NOT SERVICEABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15.2 SYNTHESIZER SERVICING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1REFERENCE OSCILLATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1VCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1SYNTHESIZER (U801). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25.3 RECEIVER SERVICING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2SUPPLY VOLTAGES AND CURRENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2MIXER/DETECTOR (U241) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2SECOND LO (Q401) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3AUDIO BUFFER AMP (U261) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3IF AMP (U231). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3BUFFER AMP (Q211), CRYSTAL FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3MIXER (U211). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3LNA (Q202), HELICAL FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3ANTENNA SWITCH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-35.4 TRANSMITTER SERVICING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3SUPPLY VOLTAGES AND CURRENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3VCO (A801) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3PRE-DRIVER (Q511) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3FINAL AMPLIFIER (U521) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4ANTENNA SWITCH (CR561/CR562) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4MODULATION INPUT (J201, PIN 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4TCXO (Y801). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
3TABLE OF CONTENTS6 ALIGNMENT PROCEDURE AND PERFORMANCE TESTS6.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16.2 TEST EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16.3 DL3412 TRANSCEIVER ONLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1VCO CONTROL VOLTAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1TRANSMITTER AND FREQUENCY ALIGNMENT (OEM Not Using Diagnostics). . . . . . . . . . . . . . . . . . . . . . 6-1MODULATION ALIGNMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2TRANSMITTER AND FREQUENCY ALIGNMENT (Johnson Loader Using Diagnostics) . . . . . . . . . . . . . . . . . 6-2MODULATION ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2RECEIVER ALIGNMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4IF AND AUDIO ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-47 PARTS LIST8 SCHEMATICS AND COMPONENT LAYOUTS
1-1August 1997 Part No. 001-3412-002SECTION 1 GENERAL INFORMATION1.1 SCOPE OF MANUALThis service manual contains alignment and ser-vice information for the Johnson Data Telemetry (JDT) DM-3412 UHF Synthesized Telemetry Unit.This manual concentrates on the RF section of the data link which may be paired with an internal Loader board or 9600 baud Modem board.Service manuals addressing items specific to the Loader board (Part No. 001-3240-001) and the Modem boards (Part No. 001-3276-001/001-3296-001) should be referenced for the users specific con-figuration.1.2 EQUIPMENT DESCRIPTION1.2.1 GENERALThe JDT DM-3412 is a synthesized data trans-ceiver (transmitter and receiver) which operates in the 380-512 MHz UHF frequency range. Transmitter power output is 5 watts nominal at 13.3V DC in sim-plex or half duplex modes.Versions of the DM-3412 covered in this manual are indicated in Section 1.5. The DM-3412 has a fre-quency stability of ± 1.5 PPM (see Section 3) and is available with or without the Loader/Modem boards.The number of channels that can be selected with the DM-3412 model is determined by the customer supplied synthesizer loading circuitry. The DL-3412 model is 8-Channels when supplied with the DL-3240 Loader board, the DL-3276 modem kit or the DL-3296 modem kit.In addition to this UHF radio, JDT has a full line of radios and radio modems to meet wireless data communication needs. Both OEM RF decks and com-plete FCC and Industry Canada type approved radios and radio modems are available from 132-174 MHz at VHF, 380-512 MHz at UHF and 928-960 MHz at 900 MHz in both 5W and 2W units (VHF and UHF). High Specification units are available to meet Interna-tional requirements and bandwidths to meet U.S.A. refarming requirements. To learn more about the other JDT products, call 1-800-992-7774 or 1-612-890-8155 to speak to a sales representative.1.2.2 DL-3412 WITH LOADER BOARDThe DL-3412 (Part No. 242-3412-xxx) can be ordered with the 8-channel Loader board (Part No. 023-3240-001). The Loader board performs synthe-sizer loading through an RS-232 DB-9 interface. In addition, this board has circuitry which provides elec-tronic control of the following:Transmit/Receive data conditioning and gatingCarrier DetectPower ControlModulation FlatnessAudio/Data FilteringSleep/Wake-up to minimize current consumptionDiagnostics that includes: Input Voltage Sense Input Current Sense Ambient Temperature Sense RSSI Indicator (RSSI Sense) Forward/Reverse Power Sense. The gating circuits allow user selection of data filtering (standard or wide band) and also pre-empha-sis/de-emphasis to be enabled or disabled.This board is programmed using an IBM PC or compatible computer and the Johnson Data Telemetry programming software. Programming information is stored by an EEPROM on the Loader board. Refer to Section 3.3 for programming information.NOTE: The synthesizer must be loaded each time power is turned on. Therefore, one loader board or customer supplied programming circuit is required for each data transceiver.
GENERAL INFORMATION1-2August 1997Part No. 001-3412-002 1.2.3 DL-3412 WITH RNET™ MODEMThe DL-3412 (Part No. 242-3412-xxx) can be ordered with the 9600 baud Modem (Part No. 023-3276-001), which supports the RNET™ communica-tion protocol. This modem allows data communica-tion between the Johnson Data Telemetry high specifi-cation synthesized products and the Motorola RNET radio/modems.The Modem features include:lUser Programmable Data Rates:9600/4800/2400/1200 baud in a 25 kHz bandwidthOR1200/2400/4800 baud in a 12.5 kHz bandwidth.lRS-232 compatible using DE-15 15-pin connector.lSimplex or Half-Duplex operation.lRTS-CTS handshaking protocol with option for configuring any two units as a digital repeater (Half-Duplex or Simplex).lSupports asynchronous, serial or transparent data formats.lFront panel LEDs provide indication for Transmit, Receive and Power.lBuilt-In Diagnostics reported both locally and "Over-The-Air":Reports specific unit programmingLoopback test featureRSSIForward and Reflected PowerTemperatureSupply Voltagel8-Channels programmable with option to switch channels remotely "Over-The-Air".This board is programmed using an IBM PC or compatible computer using MS-DOS and the RSS programming software (Part No. 023-3276-005). Pro-gramming instructions contained in the RSS Manual included in the part number listed in Table 1-1.1.2.4 DL3412 WITH DL3296 MODEMThe DL3296 modem (Part No. 023-3296-001) provides digital data transmission at data rates up to 9600 baud. The DL3296 operates in Half-Duplex mode. However, two transceivers can be combined to provide Full-Duplex operation. The user interface is a serial port through a 9-pin D-connector configurable to either RS-232 or TTL signal levels. The data for-mat is asynchronous with either 8 or 9 data bits. The modem can operate in either standard DTE/DCE handshake protocol or in Data Activation mode which requires only receive and transmit data lines. The baud rates are user selectable from 300 to 9600 baud in a 25 kHz bandwidth or 300 to 4800 baud in a 12.5 kHz bandwidth.1.2.5 DM-3412 SYNTHESIZER PROGRAMMINGThe DM-3412, when used without the Universal Loader Board (Part No. 023-3240-001) or DL-3276/DL-3296 modem kits, requires customer supplied circuitry to load the synthesizer with channel informa-tion. The protocol that this circuitry must follow is described in Section 3.1.3 TRANSCEIVER IDENTIFICATIONThe transceiver identification number is printed on a label that is affixed to the PC board. The follow-ing information is contained in that number:1.4 ACCESSORIESAccessories available for the DL-3412 data trans-ceiver are listed in Table 1-1.Table 1-1 ACCESSORIESAccessory Part No.DL-3240 Loader Kit 023-3240-001DL-3296 Modem Kit 023-3296-001DL-3276 Modem Kit 023-3276-001DL-3295 Telemetry Modem 250-3295-001/101DL-3282 Modem* 250-3282-001DL-3276 Service Manual 001-3276-001DL-3240 Service Manual 001-3240-001DL-3296 Service Manual 001-3296-001Interface Cable 023-3276-007Interface Cable 023-3276-008* Must have Loader Kit installed in radio to make this modem compatible with radio.3412 2A 1 4 3 A12345Model RevisionLetterNinth Digitof PNManufactureDateWeek No.of Year YearPlantWarrantyNumber
GENERAL INFORMATION1-3August 1997 Part No. 001-3412-0021.5 PART NUMBER BREAKDOWNThe following is a breakdown of the part number used to identify this transceiver:1.6 FACTORY CUSTOMER SERVICEThe Customer Service Department of the Johnson Data Telemetry Corporation provides cus-tomer assistance on technical problems and the avail-ability of local and factory repair facilities. Customer Service hours are 7:30 a.m. - 4:30 p.m. Central Time, Monday - Friday. There is also a 24-hour emergency technical support telephone number. From within the continental United States, the Customer Service Department can be reached at this toll-free number1-800-992-7774When your call is answered at the Johnson Data Telemetry Corporation, you will hear a brief message informing you of numbers that can be entered to reach various departments. This number may be entered during or after the message using a tone-type tele-phone. If you have a pulse-type telephone, wait until the message is finished and an operator will come on the line to assist you. When you enter a first number of "3", another number is requested to further catego-rize the type of information you need. You may also enter the 4-digit extension number of the person that you want to reach if you know what it is.FAX Machine - Sales (612) 882-5671FAX Machine - Cust Serv (507) 835-6969If you are calling from outside the continental United States, the Customer Service telephone num-bers are as follows:242-3412 - X Y Z 0 = Transceiver1 = 12.5 kHz 3 = 419-435 MHz4 = 435-451 MHz5 = 450-470 MHz6 = 464-480 MHz7 = 480-496 MHz8 = 496-512 MHz3 = 25 kHz 6 = Transmit Only8 = Receive Only1 = 380-403 MHz2 = 403-419 MHzCustomer Service Department - (507) 835-6911Customer Service FAX Machine - (507) 835-6969You may also contact the Customer Service Department by mail. Please include all information that may be helpful in solving your problem. The mailing address is as follows:Johnson Data Telemetry CorporationCustomer Service Department299 Johnson AvenueP.O. Box 1733Waseca, MN 56093-08331.7 PRODUCT WARRANTYThe warranty statement for this transceiver is available from your product supplier or from the War-ranty Department, Johnson Data Telemetry Corpora-tion, 299 Johnson Avenue, PO Box 1733, Waseca, MN 56093-0833. This information may also be requested by phone from the Warranty Department. The Warranty Department may also be contacted for Warranty Service Reports, claim forms, or any ques-tions concerning warranties or warranty service by dialing (507) 835-6970.1.8 REPLACEMENT PARTSReplacement parts can be ordered directly from the Service Parts Department. To order parts by phone, dial the toll-free number and then enter "3" as described in Section 1.6. When ordering, please sup-ply the part number and quantity of each part ordered. Johnson Data Telemetry dealers also need to give their account number.If there is uncertainty about the part number, include the designator (C112, for example) and the model number of the equipment the part is from (refer to Section 1.3).You may also send your order by mail or FAX. The mailing address is as follows and the FAX num-ber is shown in Section 1.6.Johnson Data Telemetry CorporationService Parts Department299 Johnson AvenuePO Box 1733Waseca, MN 56093-0833
GENERAL INFORMATION1-4August 1997Part No. 001-3412-002 1.9 FACTORY RETURNSRepair service is normally available through local authorized Johnson Data Telemetry Radio Service Centers. If local service is not available, the equip-ment can be returned to the factory for repair. How-ever, it is recommended that you contact the Field Ser-vice Department before returning equipment. A service representative may be able to suggest a solu-tion to the problem so that return of the equipment would not be necessary. If using the toll-free number in the preceding section, enter "3".Be sure to fill out a Factory Repair Request Form #271 for each unit to be repaired, whether it is in or out of warranty. These forms are available free of charge by calling the repair lab (see Section 1.6) or by requesting them when you send a unit in for repair. Clearly describe the difficulty experienced in the space provided and also note any prior physical dam-age to the equipment. Include a form in the shipping container with each unit. Your phone number and contact name are very important because there are times when the technicians have specific questions that need to be answered in order to completely iden-tify and repair a problem.When returning equipment for repair, it is also a good idea to use a PO number or some other reference number on your paperwork in case you need to call the repair lab about your unit. These numbers are ref-erenced on the repair order to make it easier and faster to locate your unit in the lab.Return Authorization (RA) numbers are not nec-essary unless you have been given one by the Field Service Department. They require RA numbers for exchange units or if they want to be aware of a spe-cific problem. If you have been given an RA number, reference this number on the Factory Repair Request Form sent with the unit. The repair lab will then con-tact the Field Service Department when the unit arrives.
GENERAL INFORMATION1-5August 1997 Part No. 001-3412-0023412 UHF SYNTHESIZED TELEMETRY UNIT SPECIFICATIONSThe following are general specifications intended for use in testing and servicing this transceiver. For current ad-vertised specifications, refer to the specification sheet available from the Marketing Department. Specifications are subject to change without notice.GENERALFrequency Range 380-512 MHzFrequency Control SynthesizedChannel Spacing 12.5/25 kHzMode of Operation Simplex or Half DuplexOperating Voltage +13.3V DC nominal (10-16V DC operational)Regulated Supply Voltages +5.5V DC, +9.6V DCTransmit Enable 3-16V DC at 150 µA maxReceive Enable 3-16V DC ±5% at 150 µA nominal (150 µA during receive)Transceiver Enable 3-16V DC at less than 150 µAPower and Data Connector 14-pin in-line socket (Dupont 76308-14)RF Input/Output SMA Jack (female)Operating Temperature -30°C to +60°C (-22°C to +140°F) Storage Temperature -40°C to +85°C (-40°F to +185°F)Humidity 95% maximum RH at 40°C, non-condensingMaximum Dimensions 4.585" L, 3.25" W, 2.212" HFCC Compliance DM3412 Customer must apply DL3412 Part 90, Part 15 (403-512 MHz), Industry Canada RSS119, Issue 5RECEIVERBandwidth 16 MHz all bands except (20 MHz 308-403/450-470 MHz) Frequency Stability ±1.5 PPM (-30°C to +60°C (-22°C to +140°F)Sensitivity - 12 dB SINAD ≤ 0.35 µVRF Input Impedance 50 ohmsSelectivity -70 dB/-60 dB (tN/t/E) for 25 kHz, 60 dB/50 dB (tN/t/E) for 12.5 kHzSpurious and Image Rejection -70 dBConducted Spurious Emissions < -57 dBmIntermodulation -70 dBFM Hum and Noise -40 dB 12.5/25 kHzReceive Attack Time < 5 ms Total Receive On Time 7 mS maximumAudio Distortion < 3% Buffered Output Level 150 mV RMS nominal at 2.5V DC bias Discriminator Output ±1 dB from DC to 5 kHz (reference to 1 kHz) Output Bias 2.5V DC ±10% Output Impedance >10k ohmsRSSI 0.9V to 2.4V DC output from -120 to -60 dBm, attack time < 2 ms
GENERAL INFORMATION1-6August 1997Part No. 001-3412-002 TRANSMITTERFrequency Stability ±1.5 PPM (-30°C to +60°C (-22°C to +140°F)Bandwidth 16 MHz without tuning 20 MHz without tuning 380-403 and 450-470 MHz bandsMaximum System Deviation 5 kHz (25 kHz), 2.5 kHz (12.5 kHz)Modulation FM/DC coupled Input Bias 2.5V DC ±1% temperature compensated to ±100 mV. Supplied in Tx/Rx. Input Impedance >40k ohms Distortion < 3% at 60% of maximum system deviation, 1 kHz tone Capability 1.8V P-P ±2 dB produces ±5 kHz deviation with a 1 kHz tone Flatness ±2 dB, DC-5 kHz at 1 kHz (Programmable to ±0.5 dB with diagnostic DACRF Power Output 1-5W ±20% adjustable (5W at 13.3Vnominal)Deviation Symmetry 5%RF Output Impedance 50 ohmsDuty Cycle 50% (30 sec. max transmit)Adjacent Channel Power -70 dBIntermodulation Attenuation -40 dBSpurious and Harmonic FM -26 dBm max.FM Hum and Noise -45 dB 25 kHz, -40 dB 12.5 kHz
2-1June 1997 Part No. 001-3412-002SECTION 2 INSTALLATION2.1 PRE-INSTALLATION CHECKSField alignment should not be required before the 3412 is installed. However, it is still good practice to check the performance to ensure that no damage occurred during shipment. Performance tests are located in Section 6.2.2.2 INTERFACING WITH DATA EQUIPMENT2.2.1 DM3412 (RF Board)Connector J201 on the data transceiver PC board provides the interface with the data equipment. This is a 14-pin female connector with .025" square pins on 0.1" centers (Dupont 76308-114). The cable (Part No. 023-3472-007) is not included with the data trans-ceiver. An interface cable diagram and pin designa-tions are shown in Figure 2-1.The following is a general description of the input and output signals on Transceiver Interface con-nector J201.Pin 1 (Ground) - Chassis ground.Pin 2 (+13.3V DC) - Input, transceiver main power. Input range 10-16V DC with ±3 dB variation in output power. Pin 3 (Tx En) - Input +3-16V DC. Enables transmit circuitry. ≤ 0.3V DC in Rx mode.Pin 4 (Rx En) - Input +3-16V DC. Enables receive cir-cuitry. ≤ 0.3 V DC in Tx mode.Pin 5 (RF En) - Input +3-16V DC. Shuts down on-board regulators. To be used as a power save mode.Pin 6 (Mod In) - Provides a response of ±2 dB from DC to 5 kHz across the RF band (referenced to 1 kHz). It is programmable to 0.5 dB with the diagnos-tic DAC. The modulation capability is 250 mV RMS ±3 dB that produces ±5 kHz deviation with a 1 kHz tone. When this input is used, a temperature compen-sated 2.5V DC bias is required as variations in voltage cause the frequency to change. The transceiver regula-tory compliance must be applied for with the customer supplied modulation limiting/filter circuit and chassis. Pin 7 (Synth Lock) - Output from synthesizer lock de-tect circuit. Low (< 1V DC) = unlocked, high (>2.5V DC) = locked.Pin 8 (Synth En) - TTL input. Latch enable signal for synthesizer. 250 ns min. for D, C and B words; 3 ms min. for A0 word. A rising edge latches the data loaded into the synthesizer IC..Pin 9 (Data) - TTL input. Serial data line used for pro-gramming the synthesizer and diagnostic functions.Pin 10 (Synth Clock) - TTL input. Clock signal for se-rial data input on Pin 9. Data is valid on the rising edge. 1 MHz max. frequency.Pin 11 (Diag En) - TTL input. Loads programmed DAC values into DAC (U911) for modulation adjust and power set. Also provides the strobe signal for shift register (U901) for selecting Forward and Reverse power diagnostics. 250 ns min. activates on rising edge. Pin 12 (RSSI) - Analog output (0.5-2V DC). The Re-ceive Signal Strength Indicator output provides a volt-age that increases in proportion to the strength of the RF input signal. Pin 13 (Demod) - Analog output. The Receiver De-mod output level is 150 mV RMS with a modulation signal of 1 kHz at 60% of maximum deviation. The out-put is DC coupled and referenced to +2.5V DC. Load impedance should be >10k ohms.Pin 14 (Diag) - Analog Output. This pin is enabled by pin 11. When the Loader board is used it has the capa-bility to test the operating environment through diag-
INSTALLATION2-2June 1997Part No. 001-3412-002 nostics. The diagnostic capabilities are in Section 1.2.2Figure 2-1 DM3412 INTERFACE CABLE14 13 12 11 10 912345678RSSIDATASYNTH ENSYNTH LOCKGNDDEMODMOD INTX ENRF ENCLOCKDIAGDIAG ENRX EN+13.3V DCPart No. 023-3472-007
3-1June 1997 Part No. 001-3412-002SECTION 3 PROGRAMMING3.1 INTRODUCTIONDM3412 - The information in Section 3.2 describes synthesizer programming protocol. This information can be used as a basis for designing the synthesizer programming hardware and software required.3.2 SYNTHESIZER DATA PROTOCOL3.2.1 GENERALProgramming of the SA-7025 Synthesizer IC (U811) is accomplished via the 3-line bus; DATA, CLOCK and SYNTH EN. Three 24-bit words (D, B and A0) are required to load the synthesizer. The D and B words contain four address bits each and the A0 has a 1-bit address. When the A0 word is loaded, the synthesizer frequency acquisition is initiated (see Fig-ure 3-1).Receive Bandwidth 380-512 MHzTransmit Bandwidth 380-512 MHzFirst IF 52.95 MHzSecond IF 450.0 kHzFirst LO Injection 432.95-564.95 MHz*Second LO Injection 52.5 MHz**TCXO Frequency 17.50 MHzResolution 6.25 or 10 kHzLoop Comparison Freq. 50 kHz (FCM)* High Side Injection** Low Side InjectionFigure 3-1 24-BIT SYNTHESIZER SERIAL DATA STREAMLSB (00)DataClockSynth EnMSB (23)D23 D22 D21 D20 -D00D01-Clock (max.)Synth Enable (min)D00 - D231 MHz250 ns (for D, C, and B words)D, B and A0 words
PROGRAMMING3-2June 1997Part No. 001-3412-002 3.2.2 D-WORD CALCULATION (24-BITS)The D-Word programs the Main, Reference and Auxiliary dividers, and sets the modulus.NR = 350 Ftcxo/50 kHz=350 where Ftcxo=17.5 MHzSM = 00 Reference select for main phase detectorEM = 1 Main divider enable flagSA = 00 Reference select for aux. phase detectorEA = 0 Aux. divider enable flagFMOD = 1 Selects modulo 8LONG = 0 Send with 24 bit A0 formatD Word = 0xA1 0x5E 0x22Figure 3-2 D-WORD4321 141312111098765 2019181715 16 242322211 1 0 0 1 1 1 1 00/100000011100000ADDRESSBITS= 350 FOR 50 kHz REFERENCEEA (ALWAYS 0)FMOD (1 = MODULUS 8, 0 = MODULUS 5)SA (NOT USED)EM (ALWAYS 1)SM (ALWAYS 00)LONG (0=24 BIT WORD)NR (REFERENCE DIVIDE)3.2.3 C-WORD CALCULATION (24-BITS)The C-Word is not used in the DM-3412 synthe-sizer load.
PROGRAMMING3-3June 1997 Part No. 001-3412-0023.2.4 B-WORD CALCULATION (24-BITS)The B-Word programs the Fractional-N charge pump current setting factor, the Binary acceleration factors (CL/CK) and prescaler modulus.The value of CN should be interpolated for fre-quencies between the band edges. The recommended value range of CN provides the fractional spurious rejection required to meet adjacent channel specifica-tions. The CN values could be changed on a channel-by-channel basis for ultimate rejection of the Frac-tional-N spurious responses close to the carrier fre-quency. The DM-3412 has an adjustment (R823) for fractional compensation current. The factory preset value of R823 allows CN to be set to the following ranges:Lowest Tx Frequency 86Highest Tx Frequency 90Lowest Rx Frequency 96Highest Rx Frequency 100CN = (8-bit) (Frequency dependent) (86-90 Tx) (96-100 Rx)CK = 0000 Binary acceleration factor for integral charge pumpCL = 00 Binary acceleration factor for proportional charge pumpPR = 01 Select modulus 2 prescaler (64/65)B-Word = 0x80 (8-bit CN) 0x02Figure 3-3 B-WORD4321 141312111098765 2019181715 16 242322211 0 100000000000ADDRESSBITS0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0 0NOT USED(ALWAYS 0000) (CHANNEL DEPENDENT)CK(CHARGE PUMP CURRENT SETTING)CN CLBINARY ACCELERATIONFACTOR (ALWAYS 000000)PR (PRESCALER TYPE) (01=DUAL MODULUS)
PROGRAMMING3-4June 1997Part No. 001-3412-002 3.2.5 A0-WORD CALCULATION (24-BITS)The A0-Word is sent last (see Figure 3-4). The A0-Word contains the data for the loop dividers and is programmed on a channel-by-channel basis. The Fractional-N (NF) word is a 3-bit word that programs the synthesizer to the fractional steps determined by the fractional modulus selection flag FMOD (1 = modulus 8) and the loop comparison frequency (50 kHz). The frequency resolution is:50 kHz ÷ 8 = 6.25 kHz.NF= (3-bits)* Fractional increment for modulus 8 (3-bits)NM1=(12-bits)* Number of main divide cycles when prescaler modulus equals 64 (12-bits)NM2=(8-bits)* Number of main divide cycles when prescaler modulus equals 65 (4-bits, PR=01)NM3=(4-bits)* Number of main divide cycles when prescaler modulus equals 72 (4 bits, PR=10) NOTE: NM3 is not used because dual modulus is selected by PR=01.* Indicates frequency/channel dependant variable.The Fractional-N increment (NF) is a 3-bit word that is channel dependant. NF is used to program the synthesizer to channels (frequency steps) that are below the comparison frequency (FCM), i.e. frequen-cies that are not divisible by FCM. When the D-word is programmed with FMOD = 8, and NR = 350 as described in Section 3.2.2, the fractional increment is: 50 kHz ÷ 8 = 6.25 kHz.FCM = Ftcxo ÷ NR = 17.5 MHz ÷ 350 = 50 kHzThe synthesizer resolution (min. step) is 6.25 kHz.Example Calculation: Program the transceiver to receive at 457.01875 MHz:RX = 457.01875 MHzLO = RX + 52.95 MHz = 509.96875 MHz (LO is high-side injection)N = LO ÷ FCM = 509.96875 ÷ 0.05 = 10199 (integer)NM2 = 64 x FRAC [N ÷ 64] = 64 x FRAC [10199 ÷ 64]= 64 x 0.359375= 23NM1 = INTEGER [N ÷ 64] - 2 - NM2 = 159 - 2 - 23= 134NF = 18.75 kHz ÷ 6.25 kHz = 3NOTE: Channel steps of 10 kHz can also be achieved by setting the Fractional-N modulus flag (FMOD) in the D-word to "0" which sets FMOD to 5. NR remains set to 350. This produces 10 kHz steps as NF is incremented.Figure 3-4 A0-WORD4321 141312111098765 2019181715 16 24232221ADDRESSBITS0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/10NF0/10/10/10/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1NM1(NUMBER OF MAIN DIVIDER CYCLESWHEN PRESCALER MODULUS = 64)(NUMBER OF MAIN DIVIDER CYCLESNM2WHEN PRESCALER MODULUS = 65)0/10/10/1
PROGRAMMING3-5June 1997 Part No. 001-3412-002Figure 3-5 SERIAL INPUT WORD FORMATD0D23A0BCDE0NF NM1NM3 NM20 0 0 0 0 0 01 CN CK CL PRPR="10"0 01 1 NA PA 001 01 NR SM EM SA EAFMODLONG1 11 1 0 0 0 T1 T0 0ADDRESS BITS TEST BITS124NOTE: C-Word and E-Word are not used in Synthesizer load.NM2 PR="01"NOTE: Bit 24 is shifted out first.
PROGRAMMING3-6June 1997Part No. 001-3412-002 3.3 RECEIVE TO TRANSMIT SEQUENCE1. Synthesizer is loaded (24-bit D, B and A0). Refer to Figure 3-6.2. The state of the RX_EN line does not have to be changed until the last bit is sent. However, receive will cease as soon as it is changed.3. The SYNTH ENABLE line should be held HIGH for 2 to 3 milliseconds after the last word is sent. This puts the frequency synthesizer in a SPEEDUP MODE and slightly improves lock times.4. After the last word is strobed in, 7 milliseconds (worst case) should elapse before TX_EN is turned ON. This allows the synthesizer to come within 1 kHz of the desired frequency.Figure 3-6 RX TO TX TIMING DIAGRAM"Ramp-Up" is the amount of time required for the transmitter to reach full power once the TX EN has been applied. The Ramp-Up circuitry (located on the transceiver) minimizes adjacent channel interference caused by spectral spreading (sinx/x) when the trans-mitter is keyed. The Ramp-Up time is approximately 3 ms.D0D24D0 D24 D0 D24"D" WORD "B" WORD "A" WORDDATACLOCKt=0SPEEDUP RAMP-UPLOCKRX_ENSYNTH_EN9V TXTX_EN3.4 TRANSMIT TO RECEIVE SEQUENCE1. TX_EN is turned OFF. This signal is shaped. Refer to Figure 3-7.2. The synthesizer load process could begin slightly before, but when the last bit is strobed in the synthe-sizer it will become unlocked.3. The RX_EN line should switch from low to high AFTER the TX_EN is switched. The RX_EN not only turns the RX circuits on but also Pin Shifts the VCO.Figure 3-7 TX TO RX TIMING DIAGRAM4. For quickest lock times the SYNTH ENABLE line on the last load word should be held high for 2 to 3 milliseconds. It MUST NOT be left high as the syn-thesizer in the SPEEDUP mode has poor noise per-formance and would degrade the receiver performance.Speedup is 2 to 3 msLock is approximately 7 msRamp is approximately 3 msDekey is approximately 3 ms"Ramp-Down" is the amount of time required for the transmitter output power to be reduced before switching off the transmitter and enabling the receive with the RX_EN. The Ramp-Down circuitry (located on the transceiver) minimizes adjacent channel inter-ference caused by spectral spreading (sinx/x) when the transmitter is un-keyed. The Ramp-Down time is approximately 3 ms.D0D24D0 D24 D0 D24"D" WORD "B" WORD "A" WORDDATACLOCKt=0RAMP- SPEEDUPRX_ENSYNTH_EN9V TXTX_EN DOWN
PROGRAMMING3-7June 1997 Part No. 001-3412-002IMPORTANTIf the receiver is to be operated at 510-512 MHz (-810), a spurious condition may occur to degrade the receiver sensitivity 2 to 3 dB. If this degradation is unaccept-able, the synthesizer can be reprogrammed to a com-parison frequency (FCM) of 31.25 kHz (so that a multiple of this would not be 52.95 MHz) and a modu-lus (FMOD) of 5 with a reference divide (NR) of 560. These parameters place the spurious at harmonics of 31.25 kHz (instead of 50 kHz) outside the passband of the IF filters where the sensitivity is not degraded.3.5 RADIO DIAGNOSTICSThe diagnostic features allow the user to program a Digital-To-Analog Converter (DAC) to adjust RF output power and modulation flatness without remov-ing the radio from the enclosure. Bit "ao" can be set to provide an analog voltage representative of the for-ward and reverse RF power at the radio interface con-nector J201, pin 14. This feature can be used to monitor the condition of the transceiver and antenna/feedline. Figure 3-8 is a diagram of the Diagnostic Serial Data Stream with definitions of the bits. It is 19-bits long, the front (MSBs) can be padded with "Don’t Cares" (XXs) to get to 24 bits.Clock (max.) 1 MHzDiag Enable (min) 250 ns (min)XX Don’t CareDAC Bits:A1 - A0 = DAC Output Select00=Power Set (Data=0xFF for now, RNG=1)01=Mod Adj (Data=0xFF for now, RNG=1)11=DAC Control Select (Data=0xFF for DAC Con-trol)RNG = Range Select (max. output) (Ref = 5.5V÷2)0 = 1 x Ref1 = 2 x RefD7 - D0 = D/A Data0x00 = 0.0V0xFF = 1 x Ref (RNG=0)0xFF = approx. 2 x Ref (RNG=1)Shift Register Bits:a0 = Diagnostic Select to J201, pin 14 (Analog Voltage)0 = Forward Power1 = Reverse PowerFigure 3-8 DIAGNOSTIC SERIAL DATA STREAMXXXXXX XXXX A1 A0 Rng D7 D6 D5 D4 D3 D2 D1 D0 XXXXXX XXXX XXXX aoLSB (00)MSB (23)DataClockDiag En
PROGRAMMING3-8June 1997Part No. 001-3412-002 This page intentionally left blank.
4-1June 1997 Part No. 001-3412-002SECTION 4 CIRCUIT DESCRIPTION4.1 GENERAL4.1.1 INTRODUCTIONThe main subassemblies of this transceiver are the RF board, VCO board, TCXO and Loader board. A block diagram of the transceiver is located in Figure 4-1. The 3412 is also available in transmit only and receive only models.The VCO board is enclosed by a metal shield and soldered directly to the RF board. The VCO is not serviceable.The 3412 has a reference oscillator stability of ±1.5 PPM. The 17.5 MHz TCXO (Temperature Com-pensated Crystal Oscillator) is soldered directly to the RF board. The TCXO is not serviceable.4.1.2 SYNTHESIZERThe VCO (voltage-controlled oscillator) output signal is the receiver first injection frequency in the Receive mode and the transmit frequency in the Transmit mode. The first injection frequency is 52.95 MHz above the receive frequency. The fre-quency of this oscillator is controlled by a DC voltage produced by the phase detector in synthesizer chip U811.Channels are selected by programming counters in U811 to divide by a certain number. This program-ming is performed over a serial bus formed by the Synth Clock, Synth Enable, and Data pins of J201. This programming is performed by the Loader board or user supplied hardware/software (see Section 3).The frequency stability of the synthesizer in both the receive and transmit modes is established by the stability of the reference oscillator described in the preceding section. These oscillators are stable over a temperature range of -30° to +60° C (-22° to +140° F).4.1.3 RECEIVERThe receiver is a double-conversion type with intermediate frequencies of 52.95 MHz / 450 kHz. Two helical bandpass filters reject the image, half IF, injection, and other unwanted frequencies. A four-pole crystal filter and an 8-pole ceramic filter enhance receiver selectivity4.1.4 TRANSMITTERThe transmitter produces a nominal RF power output of 5W at 13.6V DC, adjustable down to 1W. Frequency modulation of the transmit signal occurs in the synthesizer. Transmit audio processing circuitry is contained in the Loader board or customer-supplied equipment.4.1.5 LOADER BOARDThe Loader board, Part No. 023-3240-330, is a plug-in circuit board used to load the synthesizer with a desired frequency and filters data/audio to and from the user interface connector. See Section 1.2.2.4.2 SYNTHESIZERA block diagram of the transceiver is shown in Figure 4-1 and a block diagram of Synthesizer IC U811 is shown in Figure 4-2. As stated previously, the synthesizer output signal is produced by a VCO (voltage controlled oscillator). The VCO frequency is controlled by a DC voltage produced by the phase detector in U811. The phase detector senses the phase and frequency of the two input signals and causes the VCO control voltage to increase or decrease if they are not the same. The VCO is then "locked" on fre-quency.Programming of the synthesizer provides the data necessary for the internal prescaler and counters. One input signal is the reference frequency. This frequency is produced by the 17.5 MHz reference oscillator (TCXO). The other input signal is the VCO frequency.
CIRCUIT DESCRIPTION4-2June 1997Part No. 001-3412-002 Figure 4-1 TRANSCEIVER BLOCK DIAGRAM Z201RF AMPZ202MIXERCRYSTAL FILTERPREDRIVERANTENNASWITCHRX AUDIOVCOAMPLIFIERT/R PSSYNTHESIZERVCO BUFFER/RSSILOW-PASSFILTERRF OUTRF BPF RF BPF U221Z221/Z22252.95 MHz IF / 450 kHz FILTERQ4012nd LO TRIPLER/AMP1st LO AMPCLVQ853Q851/Q852AMPLIFIERRSSIRX OUTTX INY801TCXOMOD INPUTMOD ADJUSTSYNTH OUTRF INU811BUFFERU241Q301IF AMPQ850U521TRANSMITTERRECEIVER+13.3V+4.6VU581BU581APWR SETDIAGDIAG ENMOD ADJDIAGDIAG ENTX EN +9V TXRX EN+13.3VSWITCHEDCLOCKDATAENABLELOCKQ122Q121Q801TEST-2.0VQ171Q841, Q842Q901, Q902Q501Q701Q123+5V DCSHUTDOWNQ511Q531/U111CCR561/562V FWDV REV U913CU913AU912U261Q131/U131U141 +9.6V+5.5VQ231Q211Q201/Q202Q101/Q102U111A/B/DQ124U911RSSIRX OUTTX ENCLOCKDATAQ172Q173 +9.6VRECEIVE
CIRCUIT DESCRIPTION4-3June 1997 Part No. 001-3412-002Figure 4-2 U801 SYNTHESIZER BLOCK DIAGRAMCLOCKDATASTROBEVssRFINRFIN64/65/72PRESCALER MAIN DIVIDERSEM FB 2 2 12 8PR NM1 NM3NM2FRACTIONALACCUMULATORPRESCALERMODULUSCONTROL3FMOD NFFBSERIAL INPUT + PROGRAM LATCHES VDDTESTINREFEM+EAREFERENCE DIVIDER +2 +2 +2MAINMAINPHASEDETECTORREFERENCESELECT2SMEMREFERENCESELECT2SASECONDARYPHASEDETECTOREA AUXILIARYINEAAUX12NR12NAPAAUXILIARY DIVIDERPRESCALER1/4NORMALOUTPUTCHARGEPUMPOUTPUTCHARGEPUMPSPEED-UPOUTPUTCHARGEPUMPINTEGRALOUTPUTCHARGEPUMPAUXILIARYCN8CL2CK42VSSAVDDALOCKPHARAPHIPHPRNRFFrequency Control and ModulationThe VCO frequency is controlled in part by DC voltage across varactor diodes CR854, CR855, CR856 and CR851. As voltage across a reverse-biased varac-tor diode increases, its capacitance decreases. There-fore, VCO frequency increases as the control voltage increases. CR854/CR855 and CR856/CR851 are par-alleled varactors to divide the capacitance and improve linearity. The varactors are biased at -2.0V so the control line can operate closer to ground. The control line is isolated from tank circuit RF by choke L851/L854 and decoupling capacitor C854. The amount of frequency change produced by CR854/CR855/CR856/CR851 is controlled by series capaci-tor C853.4.2.1 VOLTAGE-CONTROLLED OSCILLATOROscillator (Q850)The VCO is formed by Q850, several capacitors and varactor diodes, and ceramic resonator Z850. It oscillates at the transmit frequency in transmit mode and first injection frequency in the receive mode (380-512 MHz in transmit and 432.950-564.950 MHz in receive).Biasing of Q850 is provided by R862, R867, RC=867 and R868. An AC voltage divider formed by C859, C861 and C862 initiates and maintains oscilla-tion and also matches Q850 to the tank circuit. Ceramic resonator Z850 is grounded at one end to pro-vide shunt inductance to the tank circuit.
CIRCUIT DESCRIPTION4-4June 1997Part No. 001-3412-002 The -2.0V applied to the VCO is derived from the 17.5 MHz TCXO frequency that is amplified by Q701, rectified by CR701 and filtered by C706, C707, C708 and C709 on the RF board.The VCO frequency is modulated using a similar method. The transmit audio/data signal from J201, pin 6 is applied across varactor diode CR852 which varies the VCO frequency at an audio rate. Series capacitors C856/C870 couple the VCO to CR852. R854 provides a DC ground on the anodes of CR852/CR853, and isolation is provided by R852 and C855. C858 is an RF bypass. C853 provides isolation.The DC voltage across CR853 provides compen-sation to keep modulation relatively flat over the entire bandwidth of the VCO. This compensation is required because modulation tends to increase as the VCO frequency gets higher (capacitance of CR854/CR855/CR856/CR851 gets lower). CR853 also bal-ances the modulation signals applied to the VCO and TCXO. The DIAG on J201, pin 14 can also adjust the modulation.The DC voltage applied across CR853 comes from the modulation adjust control R827 on the RF board. R826 applies a DC biasing voltage to CR852; C821 provides DC blocking. RF isolation is provided by C858, R853 and R847.4.2.2 VCO AND REFERENCE OSCILLATOR MODULATIONBoth the VCO and reference oscillator (TCXO) are modulated in order to achieve the required fre-quency response. If only the VCO were modulated, the phase detector in U811 would sense the frequency change and increase or decrease the VCO control volt-age to counteract the change (especially at the lower audio frequencies). If only the reference oscillator frequency is mod-ulated, the VCO frequency would not change fast enough (especially at the higher audio frequencies). Modulating both VCO and reference oscillators pro-duces a flat audio response. Potentiometers R825, R826 and R827 set the VCO modulation sensitivity so that it is equal to the reference oscillator modulation sensitivity.4.2.3 CASCODE AMPLIFIERS/VCO (Q851/Q852)Q851/Q852 form a cascode amplifier to provide reverse isolation for the VCO. Q851 is configured as a common emitter and Q852 as a common base. The output signal is taken from the collector of Q851 and coupled to the base of amplifier Q853 through cou-pling capacitors C868, C871 and a PI-attenuator made up of R859 and R875.4.2.4 AMPLIFIER (Q853)Amplifier Q853 provides final amplification of the VCO signal. Bias for Q853 is provided by R871, R872 and R874. L856/C874 provide a match to the transmitter and first injection frequency. The T-pad attenuator made up of R892, R893 and R894 provides 6 dB of isolation between the transmitter and first injection frequency.4.2.5 VOLTAGE FILTER (Q901)Q901 on the RF board is a capacitance multiplier to provide filtering of the 4.6V supply to the VCO. R901 provides transistor bias and C901 provides the capacitance that is multiplied. If a noise pulse or other voltage change appears on the collector, the base volt-age does not change significantly because of C901. Therefore, base current does not change and transistor current remains constant. CR901 decreases the charge time of C901 when power is turned on. This shortens the start-up time of the VCO. C902 and C903 are RF decoupling capacitors.4.2.6 VCO FREQUENCY SHIFT (Q841)The VCO must be capable of producing frequen-cies from 403-564.95 MHz to produce the required receive injection and transmit frequencies. If this large of a shift was achieved by varying the VCO con-trol voltage, the VCO gain would be undesirably high. Therefore, capacitance is switched in and out of the tank circuit to provide a coarse shift in frequency.This switching is controlled by the T/R pin shift (RX_EN) on J201, pin 4, Q841/Q842 and pin diode CR850. When a pin diode is forward biased, it pre-sents a vary low impedance to RF; and when it is reverse biased, it presents a very high impedance. The capacitive leg is switched in when in transmit and out when in receive.
CIRCUIT DESCRIPTION4-5June 1997 Part No. 001-3412-002When J201, pin 4 is high in receive (+3-16V), Q173 is turned on and the collector voltage goes low. A low on the base of Q172 turns the transistor on and the regulated +9.6V on the emitter is on the collector for the receive circuitry. Q171 applies a low on the base of Q841, the transistor is off and the collector is high. With a high on the base of Q842 and a low on the emitter, this reverse biases CR850 for a high impedance.The capacitive leg on the VCO board is formed by C851, CR850, C852 and C876. When J201, pin 4 is low in transmit, Q842 is turned on and a high is on the emitter, Q171 is turned off and the collector volt-age goes high. A low on the base of Q173 turns the transistor off and the regulated +9.6V is removed from the receive circuitry. With a high on the base of Q841 the transistor is on and the collector is low. With a low on the collector of Q842 and a high on the emit-ter, this forward biases CR850 and provides an RF ground through C851 and C852/C876 are effectively connected to the tank circuit. This decreases the reso-nant frequency of the tank circuit.4.2.7 SYNTHESIZER IC (U811)IntroductionSynthesizer chip U811 is shown in Figure 4-2. This device contains the following circuits: R (refer-ence), Fractional-N, NM1 and NM2; phase and lock detectors, prescaler and counter programming circuitry. The basic operation was described in Section 4.2.1.Channel ProgrammingFrequencies are selected by programming the R, Fractional-N, NM1 and NM2 in U811 to divide by a certain number. These counters are programmed by Loader board or a user supplied programming circuit. More information on programming is located in Section 3.As previously stated, the counter divide numbers are chosen so that when the VCO is oscillating on the correct frequency, the VCO-derived input to the phase detector is the same frequency as the reference oscilla-tor-derived frequency.The VCO frequency is divided by the internal prescaler and the main divider to produce the input to the phase detector.4.2.8 LOCK DETECTWhen the synthesizer is locked on frequency, the SYNTH LOCK output of U811, pin 18 (J201, pin 7) is a high voltage. When the synthesizer is unlocked, the output is a low voltage. Lock is defined as a phase difference of less than 1 cycle of the TCXO.4.3 RECEIVER CIRCUIT DESCRIPTION4.3.1 HELICAL FILTER (Z201), RF AMPLIFIER (Q201)Capacitor C205 couples the receive signal from the antenna switch to helical filter Z201. (The antenna switch is described in Section 4.4.4.) Z201 is a band-pass filter tuned to pass only a narrow band of fre-quencies to the receiver. This attenuates the image and other unwanted frequencies. The helicals are fac-tory set and should not be tuned.Impedance matching between the helical filter and RF amplifier Q202 is provided by C206, C207 and L201. CR231 protects the base-emitter junction of Q202 from excessive negative voltages that may occur during high signal conditions. Q201 is a switched constant current source which provides a base bias for Q202. Q201 base bias is provided by R202/R203. Current flows through R201 so that the voltage across it equals the voltage across R202 (minus the base/emitter drop of Q201). In the transmit mode the receive +9.6V is removed and Q201 is off. This removes the bias from Q202 and disables the RF amplifier in transmit mode. This prevents noise and RF from being amplified by Q202 and fed back on the first injection line.Additional filtering of the receive signal is pro-vided by Z202. L202, C208 and C209 provide imped-ance matching between Q202 and Z202. Resistor R205 is used to lower the Q of L202 to make it less frequency selective.
CIRCUIT DESCRIPTION4-6June 1997Part No. 001-3412-002 4.3.2 MIXER (U211)First mixer U211 mixes the receive frequency with the first injection frequency to produce the 52.95 MHz first IF. Since high-side injection is used, the injection frequency is 52.95 MHz above the receive frequency. The RF signal is coupled to the mixer through C2154.3.3 FIRST LO AMPLIFIER (Q301)The first injection frequency from the VCO is coupled to the first local oscillator amplifier Q301 through C301. L301/C302 match Q301 to the VCO. Bias for Q301 is provided by R301, R302 and R303, R306 and C307. Impedance matching to the mixer is provided by L302, R305 and C306 decouples RF sig-nals.4.3.4 BUFFER (Q211), CRYSTAL FILTER (Z221/Z222), IF AMP (Q231)The output of U221 is coupled to buffer Q211. C213, R213 and Q211 match the 50 ohm output of U221. Bias for Q211 is provided by R211 and R213. The output of Q211 is matched to crystal filter Z221 via L211, C214 and R212.Z221 and Z222 form a 2-section, 4-pole crystal filter with a center frequency of 52.95 MHz and a -3 dB passband of 8 kHz (12.5 kHz BW) or 15 kHz (25 kHz BW). This filter establishes the receiver selectivity by attenuating the adjacent channel and other signals close to the receive frequency. C221, C222, and L221 adjust the coupling of the filter. L222, C223 and C233 provide impedance matching between the filter and Q231.IF amplifier Q231 amplifies the 52.95 MHz IF signal to recover filter losses and improves receiver sensitivity. Biasing for Q231 is provided by R231, R232, R233, R234 and R235 and C232, C235 decou-ple RF signals. The output of Q231 is coupled to the detector by C234.4.3.5 SECOND LO AMP/TRIPLER (Q401)The input frequency to Q401 is 17.5 MHz from TCXO Y801 coupled through C402. Bias for Q401 is provided by R401, R402, R403 and R404. C403, C404 decouple RF from the amplifier. L401, L402, C405, C406 and C407 pass the third harmonic (52.5 MHz) to the input of U241, pin 4. The output of the amplifier is coupled to U241, pin 4 by C408, C409 and L403 form a 450 kHz notch.4.3.6 SECOND MIXER/DETECTOR (U241)Oscillator and MixerAs shown in Figure 4-3, U241 contains the sec-ond oscillator, second mixer, limiter, detector, and squelch circuitry. The 52.95 MHz IF signal is mixed with a 52.5 MHz signal produced by second LO amplifier/tripler Q401 from TCXO Y801.Figure 4-3 U241 BLOCK DIAGRAMSecond IF FilterThe output of the internal double-balanced mixer is the difference between 52.95 MHz and 52.5 MHz which is 450 kHz. This 450 kHz signal is fed out on pin 20 and filtered by IF filter Z251. The filtered sig-nal is fed back into U241 on pin 18 to an internal IF amplifier. After amplification the signal is fed out on pin 16 where it is filtered by Z252 and then fed back into U241, pin 14 to the limiter.124MIXER5151411RSSI52.95 MHzC234C26720OSCILLATOR52.5 MHz+-RSSI OUTPUT9VREG6VCC78+-10 QUADAUDIO OUTPUTL25312133NCLIMITER INLIMITERIF AMP OUTIF DEC1IF DEC2IF AMP INMIXER OUTLIMITER DEC1LIMITER DEC2LIMITER OUTIF AMP16171819RSSI FBAUDIO FB
CIRCUIT DESCRIPTION4-7June 1997 Part No. 001-3412-002Limiter-AmplifierThe output of Z252 is applied to a limiter-ampli-fier circuit in U241. This circuit amplifies the 450 kHz signal and any noise present; then limits this sig-nal to a specific value. When the 450 kHz signal level is high, noise pulses tend to get clipped off by the lim-iter; however, when the 450 kHz signal level is low, the noise passes through the limiter. C275/C276 decouple the 450 kHz signal.Quadrature DetectorFrom the limiter stage the signal is fed to the quadrature detector. An external phase-shift network connected to pin 8 shifts the phase of one of the detec-tor inputs 90° at 450 kHz (all other inputs are unshifted in phase). When modulation occurs, the fre-quency of the IF signal changes at an audio rate as does the phase of the shifted input. The detector, which has no output with a 90° phase shift, converts this phase shift into an audio signal. L253 is tuned to provide maximum undistorted output from the detec-tor. R255 is used to lower the Q of L253. From the detector the audio and data signal is fed out on pin 8. Audio/Data AmplifierThe audio/data output of U241, pin 8 is fed to the audio amplifier U261. U261 amplifies and inverts the detected audio/data signal and shifts the DC bias level to +2.5V DC at the output on pin 13. The gain is set at approximately 2.5 by R262/R263. R264/R265 pro-vide a 1.3V DC reference bias voltage for U241. The audio output of U261 is applied to J201, pin 13.Receive Signal Strength Indicator (RSSI)U241, pin 5 is an output for the RSSI circuit which provides a voltage proportional to the strength of the 450 kHz IF signal. The RSSI voltage is applied to J201, pin 12.4.4 TRANSMITTER CIRCUIT DESCRIPTION4.4.1 BUFFER (Q501)The VCO RF output signal is applied to R892, R893 and R894 that form a resistive splitter for the receive first local oscillator and the transmitter. The VCO signal is then applied to a 50 ohm pad formed by R501, R502, and R503. This pad provides attenuation and isolation. Q501 provides amplification and addi-tional isolation between the VCO and transmitter. Biasing for this stage is provided by R504 and R505, and decoupling of RF signals is provided by C503 . Impedance matching to the predriver is provided by L511 and C512.4.4.2 PRE-DRIVER (Q511)Pre-driver Q511 is biased Class A by R511, R512, R513 and R515. L513, C517 and C518 match Q511 to U521. R514 provides a resistive feedback path to stabilize Q511 and C515 provides DC block-ing. C516 bypasses RF from the DC line, and R513 provides supply voltage isolation and ties the +9V transmit supply to the circuit.4.4.3 FINAL (U521), COMPARATOR (U111C)RF module U521 has an RF output of 1 to 5W and operates on an input voltage from 10-16V.Power control is provided by U581, U111, Q531 and a stripline directional coupler. The power is adjusted by Power Set Control of U911 by R535 that provides a reference voltage to U111C. U111C drives Q531 and PA module U521. One end of the stripline directional coupler is connected to a forward RF peak detector formed by R591, CR591, C591 and U581A. The other end of the stripline directional coupler is connected to a reverse RF peak detector formed by R593, CR592, C593 and U581B. If the power output of U521 decreases due to temperature variations, etc., the forward peak detector voltage drops. This detector voltage drop is buffered by U581A and applied to inverting amplifier U111C which increases the forward bias on Q531. The increase on Q531 increases the power output level of U521. If the power output of U521 increases, the for-ward peak detector voltage increases and U111C decreases the forward bias on Q531. The decrease on Q531 decreases the output power of U521.The output of CR591 and CR592 are fed to U581A/B respectively. If the output of either buffer increases, the increase is applied to the inverting input of U111C. The output of U111C then decreases and
CIRCUIT DESCRIPTION4-8June 1997Part No. 001-3412-002 Q531 decreases the input voltage to U521 to lower the power. The control voltage is isolated from RF by fer-rite bead EP532 and C531 decouples RF.The forward/reverse power voltages from U581A/B are also applied to U913 for Diagnostic out-puts on J201, pin 14.The low-pass filter consists of C552, L551, C553, L552, C554, L553, C555, L554 and C556. The filter attenuates spurious frequencies occurring above the transmit frequency band. The transmit signal is then fed through the antenna switch to antenna jack J501.4.4.4 ANTENNA SWITCH (CR561, CR562)The antenna switching circuit switches the antenna to the receiver in the receive mode and the transmitter in the transmit mode. In the transmit mode, +9V is applied to L555 and current flows through diode CR561, L561, diode CR562, and R561. When a diode is forward biased, it presents a low impedance to the RF signal; conversely, when it is reverse biased (or not conducting), it presents a high impedance (small capacitance). Therefore, when CR561 is forward biased, the transmit signal has a low-impedance path to the antenna through coupling capacitor C562.C583, L561, and C564 form a discrete quarter- wave line. When CR561 is forward biased, this quar-ter-wave line is effectively AC grounded on one end by C564. When a quarter-wave line is grounded on one end, the other end presents a high impedance to the quarter-wave frequency. This blocks the transmit signal from the receiver. C561/C562 matches the antenna to 50 ohms in transmit and receive.4.4.5 TRANSMIT KEY-UP CONTROLQ121, Q122 and Q123 act as switches which turn on with the RX_EN line. When the line goes low Q121 is turned off, which turns Q122 on, turning Q123 on. This applies 13.6V to U111 before the TX_EN line goes high.U111A/B provide the key-up and key-down con-ditioning circuit. C116 and R117 provide a ramp-up and ramp-down of the 9V transmit supply during key-up and key-down which reduces load pull of the VCO during key-up. The conditioning provides a stable 5.5V output by balancing the 5.5V reference with the 5.5V regulated supply. The output on U111B, pin 7 is applied to the non-inverting input of comparator U111D, pin 12. The output of U111D, pin 14 is applied to the base of cur-rent source Q124. The output of Q124 is on the emit-ter and is applied back to the inverting input of com-parator U111D, pin 13. A decrease or increase at U111D, pin 13 causes a correction by U111D to stabi-lize the 9V transmit output. R125/R126 establishes the reference voltage on U111D, pin 13. C123 pro-vides RF bypass, C124 provides RF decoupling and C125 stabilizes the output. The 9V transmit voltage is then distributed to the circuits.4.5 VOLTAGE REGULATORS4.5.1 +9.6 AND +5.5V REGULATEDThe +5-16V applied on J201, pin 5 is applied to the base of Q131 turning the transistor on. This causes the collector to go low and applies a low to the control line of U131, pin 2 and R132 provides supply voltage isolation. The 13.3V from J201, pin 2 is on U131, pin 6 to produce a +5.5V reference output on U131, pin 4. C132 stabilizes the voltage and C131/C133 provide RF decoupling. C134 provides RF bypass and C136 provides RF decoupling. C135 helps to stabilize the voltage when the +5.5V supply first turned on.The low from the collector of Q131 is also applied to the control line of U141, pin 2. The 13.3V from J201, pin 2 is on U141, pin 6 to produce a +9.6V output on U141, pin 4. C144 provides RF bypass and C146 provides RF decoupling. C145 helps to stabilize the voltage when the +9.6V supply first turned on.
5-1June 1997 Part No. 001-3412-002SECTION 5 SERVICING5.1 GENERAL5.1.1 PERIODIC CHECKSThis transceiver should be put on a regular main-tenance schedule and an accurate performance record maintained. Important checks are receiver sensitivity and transmitter frequency, modulation, and power out-put. A procedure for these and other tests is located in Section 6. It is recommended that transceiver perfor-mance be checked annually even though periodic checks are not required by the FCC. During the first year, make an additional check or two to ensure no TCXO frequency drifting has occurred.5.1.2 SURFACE-MOUNTED COMPONENTSA large number of the components used on the transceiver board are the surface-mounted type. Since these components are relatively small in size and are soldered directly to the PC board, care must be used when they are replaced to prevent damage to the com-ponent or PC board. Surface-mounted components should not be reused because they may be damaged by the unsoldering process.5.1.3 SCHEMATIC DIAGRAMS AND COMPO-NENT LAYOUTSSchematic diagrams and component layouts of the PC boards used in this transceiver are located in Section 8. A component locator guide is also pro-vided to aid in component location.5.1.4 REPLACEMENT PARTS LISTA replacement parts list with all the parts used in this transceiver is located in Section 7. Parts are listed alphanumerically according to designator. For infor-mation on ordering parts, refer to Section 1.8.5.1.5 TCXO MODULE NOT SERVICEABLEThe ±1.5 PPM TCXO module is not field ser-viceable. Part changes require a factory recalibration to ensure that the oscillator stays within its ±1.5 PPM tolerance.5.2 SYNTHESIZER SERVICING5.2.1 INTRODUCTIONWhen there is a synthesizer malfunction, the VCO is not locked on frequency. When an unlocked VCO is detected by the lock detector circuit, U801, pin 18 goes low (0V). NOTE: The user-supplied circuitry must disable the transmitter and receiver when an out-of-lock condi-tion is indicated.When the VCO is unlocked, the fR and fV inputs to the phase detector are not in phase (see Section 4.1.2). The phase detector in U801 then causes the VCO control voltage to go to the high or low end of its operating range. This in turn causes the VCO to oscillate at the high or low end of its frequency range.As shown in Figure 4-1, a loop is formed by VCO Q850, amplifier Q851/Q852, and the RF IN of U801. Therefore, if any of these components begin to malfunction, improper signals appear throughout the loop. However, correct operation of the counters can still be verified by measuring the input and output fre-quencies to check the divide number.Proceed as follows to check the synthesizer I/O signals to determine if it is operating properly.5.2.2 REFERENCE OSCILLATORCheck the signal at U811, pin 8. It should be 17.5 MHz at a level of approximately 1V P-P. If the TCXO module is defective, it is not serviceable and must be replaced with a new module as described in Section 5.1.5.5.2.3 VCOOutput Level The output level of Q853 can be measured with an RF voltmeter or some other type of high impedance meter. The minimum level after a power splitter at R893 should be -10 dBm.
SERVICING5-2June 1997Part No. 001-3412-002 Control VoltageCheck the DC voltage at TP831 with a channel near the center of the band. If the VCO is locked on frequency, this should be a steady DC voltage near 3V. If it is not locked on frequency, it should be near the lower or upper end of its range (0V or 5.5V).Output FrequencyCheck the VCO frequency at R893. If the VCO is locked on frequency, it should be stable on the transmit channel frequency. If the VCO is not locked on frequency, the VCO control voltage is probably near 0V or 5.5V.5.2.4 SYNTHESIZER (U801)Lock DetectorWhen the VCO is locked on frequency, the lock detect output on J201, pin 7 should be high.5.3 RECEIVER SERVICINGTo isolate a receiver problem to a specific sec-tion, refer to the troubleshooting flowchart in Figure 5-1. Tests referenced in the flowchart are described in the following information. NOTE: Supply voltages are provided by the user.5.3.1 SUPPLY VOLTAGES AND CURRENTMeasure the supply voltages on the following pins at interface connector J201: Pin 2 - 13.3V DC nominal Pin 3 - 0.0V DC while in Receive Pin 4 - 3-16V DC in Receive Mode Pin 5 - 3-16V DC Pin 6 - 2.5V DC ±1%Place a DC ammeter in the supply line to the transceiver and the following maximum currents should be measured: Pin 4 - 150 µA5.3.2 MIXER/DETECTOR (U241)Data OutputUsing a .01 µF coupling capacitor, inject a 52.95 MHz, 1 mV signal, modulated with 1 kHz at ± 3 kHz deviation at U241, pin 1. The signal output at U241, pin 8 should be approximately 150 mV P-P.NOTE: This signal consists of the 1 kHz modulation and harmonics of 450 kHz.RSSI OutputThe RSSI output on J201, pin 12 should be<900 mV DC with no signal applied, and >2.3V DC with a 1 mV input signal.Figure 5-1 RECEIVER SERVICING STARTMEASURE CURRENTOK?OK?NOYESYESNOREFER TO SECTION 5.3.2CHECK FUSES ANDWIRE HARNESS CONNECTIONSREFER TO SECTION 5.3AND VOLTAGESCHECK DATAOUTPUTREFER TO SECTION 5.3.2CHECKCHECK AUDIOOK?YESNOOK?YESNOCHECK MIXER/DETECT CIRCUITU241CIRCUIT REFER TO SECTION 5.3.4REFER TO SECTION 5.3.3REPLACE DEFECTIVECOMPONENTREFER TO SECTION 5.3.6CHECK BUFFERSCRYSTAL FILTERSREPAIR DEFECTIVESTAGECHECK RF AMPFIRST MIXER REFER TO SECTION 5.3.3
SERVICING5-3June 1997 Part No. 001-3412-0025.3.3 SECOND LO (Q401)Verify the Second LO signal is present at U241, pin 4. The Second LO should be at 52.50 MHz and not less than 500 mV P-P.5.3.4 AUDIO BUFFER AMP (U261)The Data output on J201, pin 13 should be 280-700 mV P-P, with the preceding injection signal. If these levels are not correct, verify proper adjustment of L253 (see Section 6.3). The gain of U261 is 2.5 for 25 kHz radios and 5 for 12.5 kHz radios.5.3.5 IF AMP (U231)The IF Amp input signal is 52.95 MHz. This amp provides approximately 15 dB of gain to U241.5.3.6 BUFFER AMP (Q211), CRYSTAL FILTERSQ211 buffers the 52.95 MHz IF signal and pro-vides matching to the crystal filters Z221/Z222.5.3.7 MIXER (U211)The mixer converts the RF signal (380-512 MHz) to 52.95 MHz. The Local Oscillator is provided by the VCO and Q301. The level of the LO should be approximately +3 dBm.5.3.8 LNA (Q202), HELICAL FILTERSThe LNA provides approximately 15 dB of gain at 380-512 MHz. The helical filters Z201/Z202 have approximately 2.5 dB of loss each. Q201 provides active bias to Q201.5.3.9 ANTENNA SWITCHCR561, CR562, L561, C561 and C563 form a Pi network antenna switch. CR561 and CR562 are reversed biased in Receive Mode.5.4 TRANSMITTER SERVICING5.4.1 SUPPLY VOLTAGES AND CURRENTMeasure the supply voltages on the following pins of interface connector J201: Pin 2 - 13.3V DC nominal Pin 3 - 3-16V DC Pin 4 - 0.0V DC (while transmitting) Pin 5 - 3-16V DC Pin 6 - 2.5V DC ±1%/1.5V P-P maxPlace a DC ammeter in the supply line to the transceiver and the following maximum currents should be measured: Pin 2 - 2.5A maximum Pin 3 - 150 µA Pin 5 - 150 µA5.4.2 VCO (A801)1. Check VCO A801 for power output. (Power output should be at least -10 dBm.)2. Check 9V Transmit (Q141, emitter). 3. If 9V is not present check Q124, U111, Q121, Q122, Q123, Q101 and Q102 (see Section 4.4.5).4. Check voltages on Buffer Q501.Input = 1.5V DCOutput = 3.5V DCPower output should be at least 2 mW (+3 dBm) at C504 (50 ohm point).5.4.3 PRE-DRIVER (Q511)1. Check voltages on Q511.Collector = 8.6V DCBase = 2.2V DCEmitter = 1.6V DC w/o RF (2.2V DC with RF)Power output should be at least 100 mW (+13 dBm) at the junction of C517/L518 (50 ohm point).
SERVICING5-4June 1997Part No. 001-3412-002 5.4.4 FINAL AMPLIFIER (U521)1. Check the voltages on U521.Pin 2 = 5.5V DC (varies with power setting)Pin 3 = 5.0V DCPin 4 = 12.7V DCPower output at C551 should be 7.5-8.0W (+38.7 to +39 dBm).5.4.5 ANTENNA SWITCH (CR561/CR562)1. Check the antenna switch voltages.CR561 = 8.6V DCCR562 = 8.0V DCThe loss through the Antenna Switch should be 1.9 to 2.1 dB.5.4.6 MODULATION INPUT (J201, PIN 6)1. Check for audio/data signals at J201, pin 6, Y801, pin 1 and A801, pin 3.5.4.7 TCXO (Y801)1. Check Y801, pin 1 for 2.5V DC ±1%.2. Adjust Y801 to set the transmitter to the frequency of operation.3. If the frequency cannot be set to the frequency of operation, replace the TCXO.Figure 5-2 TRANSMITTER SERVICINGSTARTMEASURECURRENT ANDOK?NOYESMEASURE RFWATTS?CHECK DEVIATIONTRANSMITTEROKOK?OK?NONONOYESYESYESWIRE HARNESS CONNECTIONSCHECK FUSES ANDCHECK AUDIOCHECK TCXOADJUST ORCHANGE TCXOOFF FREQ5VOLTAGESOUTPUT POWER(SECTION 5.4.6)CIRCUITSCHECK FREQUENCY(SECTION 5.4.7)Y801OK?NOYESCHECK Q501REFER TOCHECK PRE-DRIVEROK?NOYESCHECK A801REFER TOSECTION 5.4.2CHECK DRIVERSECTION 5.4.3CHECK Q511OK?NOYESREFER TO CHECKPOWER MODULESECTION 5.4.4CHECK U521OK?NOREFER TO CHECKANTENNA SWITCHSECTION 5.4.5CHECKCR561/562
6-1June 1997 Part No. 001-3412-002SECTION 6 ALIGNMENT PROCEDURE AND PERFORMANCE TESTS6.1 GENERALReceiver or transmitter alignment may be neces-sary if repairs are made that could affect tuning. Alignment points diagrams are located in Figure 6-4 or component layouts are located in Section 8.Fabricate test cables by referring to Figure 2-1. This cable should include power and ground, a trans-mit keying switch that shorts the keying line to ground, data input and data output. The test setup must apply the various supply voltages and load the synthesizer with channel information.6.2 TEST EQUIPMENTlModulation Analyzer, HP8901 or equivalentlRF Signal Generator, HP8656 or equivalentlPower MeterlOscilloscopelDigital MultimeterlPower Supply, HP8264A or equivalentlAudio Analyzer, HP8903A or equivalentlLoader Board (PN 023-3240-330) or equivalent6.3 DL3412 TRANSCEIVER ONLY6.3.1 VCO CONTROL VOLTAGE1. Connect the test setup shown in Figure 6-1. Set the power supply for +13.3V DC. See Figure 2-1 for interface cable.2. Load the synthesizer with the channel frequency (see Section 3.2).3. Connect a DC voltmeter at the junction of R833/C836 (VCO pin 16) to measure the VCO control line voltage for a meter reading of ≥ 0.50 and ≤ 4.90V DC (see Figure 6-4).NOTE: These voltages will be approximately 0.50V DC higher with the VCO cover off.4. Adjust R535 fully counterclockwise and key the transmitter.5. Connect a DC voltmeter at the junction of R833/C836 (VCO pin 16) to measure the VCO control line voltage for a meter reading of ≥ 0.75 and ≤ 5.00V DC (see Figure 6-4).NOTE: These voltages will be approximately 0.50V DC higher with the VCO cover off.6. Unkey the transmitter.6.3.2 TRANSMITTER AND FREQUENCY ALIGN-MENT (OEM Not Using Diagnostics)1. Connect the test setup shown in Figure 6-1. A DC ammeter capable of measuring up to 3A should be installed in the supply line. Set the input voltage for +13.3V DC.2. Load the synthesizer with the channel frequency.(Do not transmit for extended periods.)3. Adjust R535 clockwise for 5.0W +0.5/-0.2W. Power output should be between 4.0-6.0W with cur-rent less than 2.5A (subtract 30 mA if Loader Board is used).Figure 6-1 TRANSMITTER TEST SETUPPOWER SUPPLY+13.3V DCTXRXVOLTMETERDC+-WATTMETER5W, 50 OHMDUMMY LOADCOMMUNICATIONSSERVICE MONITOR0-1.5ADC AMMETER+-ANALYZERMODULATION
ALIGNMENT PROCEDURE AND PERFORMANCE TESTS6-2June 1997Part No. 001-3412-002 6.3.3 MODULATION ALIGNMENT1. Connect a DC voltmeter to the junction of R822/R823 and adjust R823 for 2.10V DC ±0.05V DC (see Figure 6-4).2. Inject a 100 Hz square-wave tone at approximately 0.35V P-P, biased at +2.5V DC on J201, pin 6.3. Transmit into the modulation analyzer and observe modulation output on the oscilloscope. Set the modulation analyzer high pass filtering off and no less than a 15 kHz low pass filter.4. Adjust R827 for a flat square-wave on the oscilloscope. (The voltage at the wiper of R827 should be between 1-3V DC. If the voltage is less than 1V DC, replace R825 with a larger value.)5. Inject a 100 Hz sine-wave on J201, pin 6, biased at +2.5V DC, the modulation analyzer should still have the 15 kHz lowpass filter selected.6. Adjust the audio analyzer output level to achieve a transmit deviation of:1.5 kHz for 12.5 kHz BW (-X10 Radios)3.0 kHz for 25.0 kHz BW (-X30 Radios)7. Set a 0 dB reference of FM peak deviation on the Audio Analyzer.8. Input a 1kHz sine-wave. The level should be within ±1.5 dB of the reference at 100 Hz.0.2V RMS for 12.5 kHz BW (-X10 Radios)0.4V RMS for 25.0 kHz BW (-X30 Radios)9. Remove transmit modulation and unkey the transmitter.6.3.4 TRANSMITTER AND FREQUENCY ALIGN-MENT (Johnson Loader Using Diagnostics)NOTE: Subtract the current drawn by the test loader or any interface units from all measurements.NOTE: Refer to DL-3240 Universal Loader Board Service Manual for software description and program-ming information. The PRODUCTION TEST : TEST SELECT menu is required for alignment.1. Check that R571 is installed and R572 is removed on Revision 2 or earlier boards (see Figure 6-4).2. Make sure input supply voltage equals +13.3V.3. Arrow to the "mid" channel. 4. Press F5 to key the transmitter (see Figure 6-2). 5. Adjust R535 fully clockwise for maximum power output.6. Adjust the DAC value using PgUp/PgDn to set the power out to 5.0W ±0.3W. Re-check supply volt-age for +13.3V. Adjust voltage and power if neces-sary (see Figure 6-2).7. Repeat Step 6 at the "low" and "high" channels.8. Power output should be 4.7-5.3W (50% Duty Cycle) and current less than 2.5A for 380-512 MHz Transmitters.9. Arrow to the "mid" channel. Adjust the frequency displayed on the Frequency Counter to read accord-ing to the frequency shown on the monitor by adjusting the TCXO (Y801).10.Observe the Forward Power voltage on the monitor. The voltage should be greater than 3.0V DC.11.Observe the Reverse Power voltage on the monitor. The voltage should be less than 1.0V DC.6.3.5 MODULATION ADJUSTMENT1. Arrow down to Square Wave and arrow over to tog-gle the 100 Hz square-wave tone on.2. Transmit into the modulation analyzer and observe modulation output on the oscilloscope. The modu-lation analyzer should not have any high pass filter-ing selected and no less than a 15 kHz low pass filter.3. Check to be sure the DAC values are at there initial settings. Press F3 to initialize the Power Adjust, Mod Adjust, and Front-End Adjust if they are not initialized (see Figure 6-2).
ALIGNMENT PROCEDURE AND PERFORMANCE TESTS6-3June 1997 Part No. 001-3412-0024. Arrow to the "mid" channel the DAC value should be "125" (the voltage at the wiper of R827 should be set to 1.5V DC). If the square wave is rolled off on the edges, adjust R825 up in value to achieve as flat a square wave as possible. If the square wave is peaked on the edges, adjust R825 down in value to achieve as flat a square wave as possible.5. Adjust the DAC value using CTRL Page Up/Page Down to fine tune the DAC value for the latest square wave (see Figure 6-2).6. If the radio/loader combination is to stay together as one unit, press F10 to save the values to the loader EEPROM.7. Repeat the previous two steps at the Low and High channels.8. Arrow down to Square Wave and arrow over to shut the square wave off.9. Arrow up to Tx Audio Mode and arrow over to Wide AC.10.Input a 100 Hz sine wave. With the modulation analyzer 15 kHz low pass filter selected. Adjust the audio analyzer output level to achieve a transmit deviation of:fd= 1.5 kHz for 12.5 kHz radiosfd= 3.0 kHz for 25 kHz radios11.Arrow to the Low channel, input a 100 Hz sine wave and set a 0 dB reference on the MOdulation Analyzer. Input a 1 kHz sine wave, the level should be within ±0.5 dB of the reference at 100 Hz.12.Arrow to the "mid" channel, input a 100 Hz sine wave and set a 0 dB reference on the MOdulation Analyzer. Input a 1 kHz sine wave, the level should be within ±0.5 dB of the reference at 100 Hz.13.Arrow to the High channel, input a 100 Hz sine wave and set a 0 dB reference on the MOdulation Analyzer. Input a 1 kHz sine wave, the level should be within .05 dB of the reference at 100 Hz.14.Unkey the transmitter by pressing F6.Figure 6-2 PRODUCTION TEST:TEST SELECTRadioFreq PairRangeRx FrequencyTx FrequencyRx Audio ModeTx Audio Mode600 Ohm InputSquare WaveCarrier SquelchPgUp/Dn:CTRL PgUp/Dn:ALT PgUp/Dn:= 3412= MID= 1= 450.000000 MHz= 450.000000 MHz= Audio= Audio= OFF= OFF= ON Power AdjMod AdjFront End AdjF2: Auto Front-End AdjustF5: PTT OnF9: Toggle Sleep ModeFrequency Pair (Left/Right Arrow to Select)F3: Init Tune SettingsF6: PTT OffF10: Save Power/Mod/Front-End Adj for PairF4: Start Heat RunF7: Direct DAC AdjFrequency Select (ESC to Exit)RSSI VoltageForware PowerReverse PowerVoltageCurrentTemperatureVSWRPower AdjMOd AdjFront-End AdjDiag-En AdjSynth Lock= 0.70 V= 2.40 V= 0.60 V= 13.3 V= 0.09 A= 89 F= 1.4:1= 89= 102= 122= 255File Edit Utilities Program Code Prod Test <F1>-Help 08:43:30
ALIGNMENT PROCEDURE AND PERFORMANCE TESTS6-4June 1997Part No. 001-3412-002 6.3.6 RECEIVER ALIGNMENTC A U T I O NDo not key the transmitter with the generator con-nected because severe generator damage may result.1. Connect the test setup shown in Figure 6-3. Adjust the power supply for +13.3V DC.2. Measure the receive current drain. (Typically cur-rent should be approximately 88 mA or 105 mA with Loader Board.)3. Preset tuning slugs of L211/L222 to the full clock-wise position (slug in all the way).4. Preset C221 to center position (slot in-line with axis of part).5. Readjust L222 counterclockwise 2 turns.Figure 6-3 RECEIVER TEST SETUP6.3.7 IF AND AUDIO ADJUSTMENTS1. Load the synthesizer with the channel frequency.2. Set the RF signal generator for this frequency with a 1 kHz tone (modulated output shown below) at a level of -47 dBm (1000 µV) and inject into J501.1.5 kHz deviation 12.5 kHz BW (-X10 Radio)3.0 kHz deviation 25.0 kHz BW (-X30 Radio)NOTE: Maintain these deviation levels throughout the test when measuring AC levels, SINAD and % distortion.3. Adjust L253 for +2.5V DC (±0.05V DC) at the receive audio output, J201, pin 13.4. Set the RF signal generator level to -105 dBm, "unmodulated".5. Set the generator frequency 3 kHz (-X10) or 5 kHz (-X30) below channel center.6. Adjust C221, then L211 for peak RSSI voltage.NOTE: Use 2V scale on DVM.7. Set the RF signal generator frequency back to chan-nel center at -47 dBm with standard deviation level.8. Adjust L222 for minimum distortion.9. Set the RF signal generator to -105 dBm, "unmodu-lated".10.Adjust L211 for peak RSSI voltage.NOTE: Use 2V scale on DVM.11.Set RF generator back to standard deviation levels and re-adjust L253 for peak audio output. Verify audio output level of 150 mV RMS, ±50 mV RMS at a DC bias of 2.5V DC, ±0.3V DC.12.Measure the percent distortion. (Typically <3%.)13.Adjust the RF input level until 12 dB SINAD is measured. (Typically <0.35 µV/-116 dBm).14. Adjust the generator RF level to -120 dBm and measure DC (RSSI) voltage on J201, pin 12. (Typically ≤ 0.90V DC.)15.Adjust the generator RF level to -60 dBm and mea-sure DC (RSSI) voltage on J201, pin 12. (Typically ≥ 2.40V DC.)POWER SUPPLYTXRXVOLTMETERDC+-COMMUNICATIONSSERVICE MONITORDC AMMETER+-ANALYZERMODULATION+13.3V DC 0-3A
ALIGNMENT PROCEDURE AND PERFORMANCE TESTS6-5June 1997 Part No. 001-3412-002Figure 6-4 ALIGNMENT POINTS DIAGRAMJ501A801VCOTP831R827R825Y801J201 6114 13L253R535L222C221L221L211R571R572R823
ALIGNMENT PROCEDURE AND PERFORMANCE TESTS6-6June 1997Part No. 001-3412-002 This page intentionally left blank.
7-1June 1997 Part No. 001-3412-002SECTION 7 PARTS LISTSYMBOL PARTNUMBER DESCRIPTION NUMBER3412 TRANSCEIVERPART NO. 242-3412-XX0A 002 Loader board assembly 023-3240-330A 801 VCO 403-419 MHz 023-3474-240A 801 VCO 419-435 MHz 023-3474-340A 801 VCO 435-451 MHz 023-3474-440A 801 VCO 450-470 MHz 023-3412-540A 801 VCO 464-480 MHz 023-3474-640A 801 VCO 480-496 MHz 023-3474-740A 801 VCO 496-512 MHz 023-3474-840C 101 68 pF ±5% NPO 0603 510-3674-680C 102 1 µF 16V SMD tantalum 510-2625-109C 103 68 pF ±5% NPO 0603 510-3674-680C 104 .01 µF ±10% X7R 0603 510-3675-103C 105 1 µF 16V SMD tantalum 510-2625-109C 106 68 pF ±5% NPO 0603 510-3674-680C 111 .01 µF ±10% X7R 0603 510-3675-103C 112 68 pF ±5% NPO 0603 510-3674-680C 113 68 pF ±5% NPO 0603 510-3674-680C 114 .1 µF ±5% X7R 1206 510-3609-104C 115 .01 µF ±10% X7R 0603 510-3675-103C 116 .0082 µF ±10% X7R 0805 510-3605-822C 121 68 pF ±5% NPO 0603 510-3674-680C 122 68 pF ±5% NPO 0603 510-3674-680C 123 .01 µF ±10% X7R 0603 510-3675-103C 124 68 pF ±5% NPO 0603 510-3674-680C 125 1 µF 16V SMD tantalum 510-2625-109C 131 68 pF ±5% NPO 0603 510-3674-680C 132 1 µF 16V SMD tantalum 510-2625-109C 133 68 pF ±5% NPO 0603 510-3674-680C 134 .01 µF ±10% X7R 0603 510-3675-103C 135 1 µF 16V SMD tantalum 510-2625-109C 136 68 pF ±5% NPO 0603 510-3674-680C 137 .01 µF ±10% X7R 0603 510-3675-103C 141 1 µF 16V SMD tantalum 510-2625-109C 142 68 pF ±5% NPO 0603 510-3674-680C 143 .01 µF ±10% X7R 0603 510-3675-103C 144 .01 µF ±10% X7R 0603 510-3675-103C 145 1 µF 16V SMD tantalum 510-2625-109C 146 68 pF ±5% NPO 0603 510-3674-680C 151 68 pF ±5% NPO 0603 510-3674-680SYMBOL PARTNUMBER DESCRIPTION NUMBERC 152 68 pF ±5% NPO 0603 510-3674-680C 153 68 pF ±5% NPO 0603 510-3674-680C 154 68 pF ±5% NPO 0603 510-3674-680C 155 68 pF ±5% NPO 0603 510-3674-680C 156 68 pF ±5% NPO 0603 510-3674-680C 157 68 pF ±5% NPO 0603 510-3674-680C 158 68 pF ±5% NPO 0603 510-3674-680C 159 68 pF ±5% NPO 0603 510-3674-680C 160 68 pF ±5% NPO 0603 510-3674-680C 161 68 pF ±5% NPO 0603 510-3674-680C 162 68 pF ±5% NPO 0603 510-3674-680C 163 68 pF ±5% NPO 0603 510-3674-680C 171 1 µF 16V SMD tantalum 510-2625-109C 172 68 pF ±5% NPO 0603 510-3674-680C 201 68 pF ±5% NPO 0603 510-3674-680C 202 .01 µF ±10% X7R 0603 510-3675-103C 203 68 pF ±5% NPO 0603 510-3674-680C 204 .01 µF ±10% X7R 0603 510-3675-103C 205 68 pF ±5% NPO 0603 510-3674-680C 206 68 pF ±5% NPO 0603 510-3674-680C 207 3.9 pF ±0.1% NPO 0603 510-3673-399C 208 22 pF ±5% NPO 0603 510-3674-220C 209 5.6 pF ±0.1% NPO 0603 510-3673-569C 210 .01 µF ±10% X7R 0603 510-3675-103C 211 .01 µF ±10% X7R 0603 510-3675-103C 212 .01 µF ±10% X7R 0603 510-3675-103C 213 .01 µF ±10% X7R 0603 510-3675-103C 214 3.9 pF ±0.1% NPO 0603 510-3673-399C 215 68 pF ±5% NPO 0603 510-3674-680C 221 1.5-5 pF ceramic SMD 512-1602-001C 222 3.3 pF ±0.1% NPO 0603 510-3673-339C 223 .01 µF ±10% X7R 0603 510-3675-103(12.5 kHz Bandwidth)39 pF ±5% NPO 0805 510-3601-390(25 kHz Bandwidth)C 231 68 pF ±5% NPO 0603 510-3674-680C 232 .01 µF ±10% X7R 0603 510-3675-103C 233 8.2 pF ±0.1% NPO 0603 510-3673-829(12.5 kHz BW)10 pF ±0.1% NPO 0805 510-3601-100(25 kHz BW)C 234 .01 µF ±10% X7R 0603 510-3675-103C 235 .01 µF ±10% X7R 0603 510-3675-103C 261 68 pF ±5% NPO 0603 510-3674-680
PARTS LIST7-2June 1997Part No. 001-3412-002 SYMBOL PARTNUMBER DESCRIPTION NUMBERC 262 .1 µF ±5% X7R 1206 510-3609-104C 264 47 µF 10V SMD tantalum 510-2624-470C 265 .01 µF ±10% X7R 0603 510-3675-103C 266 68 pF ±5% NPO 0603 510-3674-680C 267 .01 µF ±10% X7R 0603 510-3675-103C 268 .01 µF ±10% X7R 0603 510-3675-103C 271 .01 µF ±10% X7R 0603 510-3675-103C 272 .01 µF ±10% X7R 0603 510-3675-103C 273 .01 µF ±10% X7R 0603 510-3675-103C 275 .01 µF ±10% X7R 0603 510-3675-103C 276 .01 µF ±10% X7R 0603 510-3675-103C 277 10 pF ±0.1% NPO 0603 510-3673-100C 279 .01 µF ±10% X7R 0603 510-3675-103C 301 68 pF ±5% NPO 0603 510-3674-680C 302 8.2 pF ±0.1% NPO 0603 510-3673-829(403-470 MHz)5.6 pF ±0.1% NPO 0603 510-3673-569(464-512 MHz)C 303 1 µF 16V SMD tantalum 510-2625-109C 304 68 pF ±5% NPO 0603 510-3674-680C 305 68 pF ±5% NPO 0603 510-3674-680C 306 5.6 pF ±0.1% NPO 0603 510-3673-569C 307 68 pF ±5% NPO 0603 510-3674-680C 401 .01 µF ±10% X7R 0603 510-3675-103C 402 .01 µF ±10% X7R 0603 510-3675-103C 403 .01 µF ±10% X7R 0603 510-3675-103C 404 .01 µF ±10% X7R 0603 510-3675-103C 405 82 pF ±5% NPO 0603 510-3674-820C 406 6.8 pF ±0.1% NPO 0603 510-3673-689C 407 82 pF ±5% NPO 0603 510-3674-820C 408 .01 µF ±10% X7R 0603 510-3675-103C 409 .1 µF ±5% X7R 1206 510-3609-104C 501 68 pF ±5% NPO 0603 510-3674-680C 502 68 pF ±5% NPO 0603 510-3674-680C 503 68 pF ±5% NPO 0603 510-3674-680C 504 68 pF ±5% NPO 0603 510-3674-680C 505 22 pF ±5% NPO 0603 510-3674-220C 506 10 pF ±0.1% NPO 0603 510-3673-100C 507 .01 µF ±10% X7R 0603 510-3675-103C 508 68 pF ±5% NPO 0603 510-3674-680C 511 68 pF ±5% NPO 0603 510-3674-680C 512 3.9 pF ±0.1% NPO 0603 510-3673-399C 513 .01 µF ±10% X7R 0603 510-3675-103C 514 68 pF ±5% NPO 0603 510-3674-680C 515 470 pF ±5% NPO 0603 510-3674-471C 516 68 pF ±5% NPO 0603 510-3674-680C 517 68 pF ±5% NPO 0603 510-3674-680SYMBOL PARTNUMBER DESCRIPTION NUMBERC 518 1.8 pF ±0.1% NPO 0603 510-3673-189C 519 68 pF ±5% NPO 0603 510-3674-680C 521 68 pF ±5% NPO 0603 510-3674-680C 522 1 µF 16V SMD tantalum 510-2625-109C 523 .01 µF ±10% X7R 0603 510-3675-103C 524 68 pF ±5% NPO 0603 510-3674-680C 531 68 pF ±5% NPO 0603 510-3674-680C 532 68 pF ±5% NPO 0603 510-3674-680C 533 68 pF ±5% NPO 0603 510-3674-680C 534 68 pF ±5% NPO 0603 510-3674-680C 535 68 pF ±5% NPO 0603 510-3674-680C 536 .01 µF ±10% X7R 0603 510-3675-103C 541 22 pF ±5% NPO 0603 510-3674-220C 542 10 pF ±0.1% NPO 0603 510-3673-100C 543 .01 µF ±10% X7R 0603 510-3675-103C 544 68 pF ±5% NPO 0603 510-3674-680C 551 68 pF ±5% NPO 0603 510-3674-680C 552 7.5 pF ±5% NPO 0805 510-3601-759(380-403 MHz)6.8 pF ±5% NPO 0805 510-3601-689(403-435 MHz)8.2 pF ±5% NPO 0805 510-3601-829(435-470 MHz)5.6 pF ±5% NPO 0805 510-3601-569(464-512 MHz)C 553 15 pF ±5% NPO 0805 510-3601-150(380-403 MHz)12 pF ±5% NPO 0805 510-3601-120(403-435 MHz)10 pF ±5% NPO 0805 510-3601-100(435-470 MHz)7.5 pF ±5% NPO 0805 510-3601-759(464-512 MHz)C 554 8.2 pF ±5% NPO 0805 510-3601-829(380-435 MHz)7.5 pF ±5% NPO 0805 510-3601-759(435-470 MHz)6.8 pF ±5% NPO 0805 510-3601-689(464-512 MHz)C 555 15 pF ±5% NPO 0805 510-3601-150(380-403 MHz)13 pF ±5% NPO 0805 510-3601-130(403-435 MHz)11 pF ±5% NPO 0805 510-3601-110(435-470 MHz)9.1 pF ±5% NPO 0805 510-3601-919(464-512 MHz)
PARTS LIST7-3June 1997 Part No. 001-3412-002SYMBOL PARTNUMBER DESCRIPTION NUMBERC 556 16 pF ±5% NPO 0805 510-3601-160(380-403 MHz)15 pF ±5% NPO 0805 510-3601-150(403-435 MHz)13 pF ±5% NPO 0805 510-3601-130(435-470 MHz)10 pF ±5% NPO 0805 510-3601-100(464-512 MHz)C 561 1 pF ±5% NPO 0805 510-3601-109C 562 68 pF ±5% NPO 0603 510-3674-680C 563 1.5 pF ±5% NPO 0805 510-3601-159C 564 33 pF ±5% NPO 0603 510-3674-330C 581 68 pF ±5% NPO 0603 510-3674-680C 591 27 pF ±5% NPO 0603 510-3674-270C 592 .01 µF ±10% X7R 0603 510-3675-103C 593 27 pF ±5% NPO 0603 510-3674-270C 594 .01 µF ±10% X7R 0603 510-3675-103C 701 .01 µF ±10% X7R 0603 510-3675-103C 702 .01 µF ±10% X7R 0603 510-3675-103C 703 .01 µF ±10% X7R 0603 510-3675-103C 704 .01 µF ±10% X7R 0603 510-3675-103C 706 .01 µF ±10% X7R 0603 510-3675-103C 707 68 pF ±5% NPO 0603 510-3674-680C 708 1 µF 16V SMD tantalum 510-2625-109C 709 .01 µF ±10% X7R 0603 510-3675-103C 801 .01 µF ±10% X7R 0603 510-3675-103C 802 68 pF ±5% NPO 0603 510-3674-680C 803 .01 µF ±10% X7R 0603 510-3675-103C 804 .01 µF ±10% X7R 0603 510-3675-103C 805 68 pF ±5% NPO 0603 510-3674-680C 806 .01 µF ±10% X7R 0603 510-3675-103C 811 .01 µF ±10% X7R 0603 510-3675-103C 812 .01 µF ±10% X7R 0603 510-3675-103C 813 68 pF ±5% NPO 0603 510-3674-680C 815 4.7 pF ±0.1% NPO 0603 510-3673-479(380-403 MHz)3.3 pF ±0.1% NPO 0603 510-3673-339(403-435 MHz)C 816 3.9 pF ±0.1% NPO 0603 510-3673-399C 821 1 µF 16V SMD tantalum 510-2625-109C 822 68 pF ±5% NPO 0603 510-3674-680C 825 .001 µF ±10% X7R 0603 510-3675-102C 831 100 pF ±5% NPO 0805 510-3601-101C 832 .1 µF ±5% X7R 1206 510-3609-104C 833 .0047 µF ±10% X7R 0805 510-3605-472C 836 .0047 µF ±10% X7R 0805 510-3605-472C 841 .01 µF ±10% X7R 0603 510-3675-103C 842 68 pF ±5% NPO 0603 510-3674-680SYMBOL PARTNUMBER DESCRIPTION NUMBERC 843 .01 µF ±10% X7R 0603 510-3675-103C 844 68 pF ±5% NPO 0603 510-3674-680C 845 .01 µF ±10% X7R 0603 510-3675-103C 846 68 pF ±5% NPO 0603 510-3674-680C 847 .01 µF ±10% X7R 0603 510-3675-103C 848 68 pF ±5% NPO 0603 510-3674-680C 849 .01 µF ±10% X7R 0603 510-3675-103C 850 68 pF ±5% NPO 0603 510-3674-680C 901 4.7 µF 10V SMD tantalum 510-2624-479C 902 .01 µF ±10% X7R 0603 510-3675-103C 903 68 pF ±5% NPO 0603 510-3674-680C 911 .01 µF ±10% X7R 0603 510-3675-103C 912 .01 µF ±10% X7R 0603 510-3675-103CR231 Switching diode SOT-23 523-1504-002CR561 Pin switch diode SOT-23 523-1504-001CR562 Pin switch diode SOT-23 523-1504-001CR591 Hot carrier diode SOT-23 523-1504-016CR592 Hot carrier diode SOT-23 523-1504-016CR701 Dual switch diode SOT-23 523-1504-023CR901 Varactor diode SOD-323 523-5005-022EP111 Ferrite bead SMD 517-2503-001EP200 Mini cer xtal pin insulator 010-0345-280EP501 Ferrite bead SMD 517-2503-001EP531 Ferrite bead SMD 517-2503-001EP532 Ferrite bead SMD 517-2503-001EP533 Ferrite bead SMD 123 517-2503-010EP534 Ferrite bead SMD 517-2503-001HW102 Grafoil M577xx 018-1007-102HW104 4-40 machine panhead ZPS 575-1604-010J 201 14-pin single row receptacle 515-7110-214J 501 Right angle PC bd mt 142-0701-501L 201 12 nH inductor LL2012 F12N 542-9003-127L 202 10 nH inductor 0805 SMD 542-9003-107L 211 1 µH ±6% 5mm variable 542-1012-015L 221 .82 µH SMD inductor 542-9001-828L 222 1 µH ±6% 5mm variable 542-1012-015L 253 680 µH quad coil 542-5102-001L 301 15 nH inductor LL2012 F15N 542-9003-157(403-470 MHz)12 nH inductor LL2012 F12N 542-9003-127(464-512 MHz)
PARTS LIST7-4June 1997Part No. 001-3412-002 SYMBOL PARTNUMBER DESCRIPTION NUMBERL 302 18 nH inductor LL2012 F15N 542-9003-187(403-470 MHz)15 nH inductor LL2012 F15N 542-9003-157(464-512 MHz)L 401 .1 µH SMD inductor 542-9001-108L 402 .1 µH SMD inductor 542-9001-108L 403 1 µH SMD inductor 542-9001-109L 501 1 µH SMD inductor 542-9001-109L 511 18 nH inductor LL2012 F18N 542-9003-187L 512 1 µH SMD inductor 542-9001-109L 513 18 nH inductor LL2012 F15N 542-9003-187L 551 18.5 nH 5-turn SMD air core 542-0030-005L 552 35.5 nH 9-turn SMD air core 542-0030-009L 553 35.5 nH 9-turn SMD air core 542-0030-009L 554 18.5 nH 5-turn SMD air core 542-0030-005L 555 1 µH SMD inductor 542-9001-109L 561 8 nH SMD air core 542-0030-003L 811 39 µH ±10% SMD NHY0805 542-9003-397MP101 Heat sink 014-0778-047MP102 VHF/UHF module shield 017-2225-756MP107 Low-pass filter top shield 017-2225-771MP108 Synthesizer bottom shield 017-2225-772MP109 Driver bottom shield 017-2225-773MP110 Low-pass filter bottom shield 017-2225-774MP801 VCO can 017-2225-751MP806 Crystal filter shield 017-2225-699PC001 PC board 035-3412-030Q 101 NPN digital transistor 576-0013-046Q 102 PNP digital transistor 576-0013-032Q 121 NPN digital transistor 576-0013-046Q 122 NPN digital transistor 576-0013-046Q 123 PNP digital transistor 576-0013-032Q 124 NPN high current SOT-23 576-0006-027Q 131 NPN digital transistor 576-0013-046Q 171 NPN digital transistor 576-0013-046Q 172 PNP digital transistor 576-0013-032Q 173 NPN digital transistor 576-0013-046Q 201 PNP gen purp SC-70 576-0013-700Q 202 NPN low noise SOT-23 576-0003-636Q 211 Si N-chnl JFET SOT 576-0006-019Q 231 VHF/UHF amp SOT-23 576-0003-634Q 301 NPN low noise SOT-23 576-0003-636Q 401 VHF/UHF amp SOT-23 576-0003-634Q 501 Bi-polar MMIC SOT-143 576-0003-640SYMBOL PARTNUMBER DESCRIPTION NUMBERQ 511 NPN low noise SOT-23 576-0003-636Q 531 NPN high current SOT-23 576-0006-027Q 701 VHF/UHF amp SOT-23 576-0003-634Q 801 NPN gen purp SC-70 576-0013-701Q 841 NPN digital transistor 576-0013-046Q 842 PNP digital transistor 576-0013-032Q 901 NPN gen purp SC70 576-0013-701Q 902 NPN gen purp SC70 576-0013-701Q 911 Si NPN gen purp SOT-23 576-0003-658R 102 1k ohm ±5% .063W 0603 569-0155-102R 111 22k ohm ±5% .063W 0603 569-0155-223R 112 43k ohm ±5% .063W 0603 569-0155-433R 113 10k ohm ±5% .063W 0603 569-0155-103R 114 10k ohm ±5% .063W 0603 569-0155-103R 115 10k ohm ±5% .063W 0603 569-0155-103R 116 150k ohm ±5% .063W 0603 569-0155-154R 117 150k ohm ±5% .063W 0603 569-0155-154R 121 120 ohm ±5% 1206 SMD 569-0115-121R 122 120 ohm ±5% 1206 SMD 569-0115-121R 123 10k ohm ±5% .063W 0603 569-0155-103R 124 470 ohm ±5% .063W 0603 569-0155-471R 125 3.6k ohm ±5% .063W 0603 569-0155-362R 126 5.6k ohm ±5% .063W 0603 569-0155-562R 127 100k ohm ±5% .063W 0603 569-0155-104R 131 100k ohm ±5% .063W 0603 569-0155-104R 132 51 ohm ±5% 1206 SMD 569-0115-510R 133 51k ohm ±5% .063W 0603 569-0155-513R 134 15k ohm ±5% .063W 0603 569-0155-153R 141 100k ohm ±5% .063W 0603 569-0155-104R 142 15k ohm ±5% .063W 0603 569-0155-153R 171 10k ohm ±5% .063W 0603 569-0155-103R 201 100 ohm ±5% .063W 0603 569-0155-101R 202 3k ohm ±5% .063W 0603 569-0155-302R 203 10k ohm ±5% .063W 0603 569-0155-103R 204 8.2k ohm ±5% .063W 0603 569-0155-822R 205 180 ohm ±5% .063W 0603 569-0155-181R 211 10 ohm ±5% .063W 0603 569-0155-100R 212 2.7k ohm ±5% .063W 0603 569-0155-272(12.5 kHz Bandwidth)1.8k ohm ±5% .063W 0603 569-0155-182(25 kHz Bandwidth)R 213 330 ohm ±5% .063W 0603 569-0155-331R 231 330 ohm ±5% .063W 0603 569-0155-331R 232 1k ohm ±5% .063W 0603 569-0155-102R 233 30k ohm ±5% .063W 0603 569-0155-303R 234 10k ohm ±5% .063W 0603 569-0155-103
PARTS LIST7-5June 1997 Part No. 001-3412-002SYMBOL PARTNUMBER DESCRIPTION NUMBERR 235 680 ohm ±5% .063W 0603 569-0155-681R 255 39k ohm ±5% .063W 0603 569-0155-393R 261 100 ohm ±5% .063W 0603 569-0155-101R 262 12k ohm ±5% .063W 0603 569-0155-123(12.5 kHz Bandwidth)27k ohm ±5% .063W 0603 569-0155-273(25 kHz Bandwidth)R 263 68k ohm ±5% .063W 0603 569-0155-683R 264 43k ohm ±5% .063W 0603 569-0155-433(12.5 kHz Bandwidth)33k ohm ±5% .063W 0603 569-0155-333(25 kHz Bandwidth)R 265 10k ohm ±5% .063W 0603 569-0155-103R 266 10 ohm ±5% .063W 0603 569-0155-100R 271 3.3k ohm ±5% .063W 0603 569-0155-332R 272 2.4k ohm ±5% .063W 0603 569-0155-242R 275 330 ohm ±5% .063W 0603 569-0155-331R 301 330 ohm ±5% .063W 0603 569-0155-331R 302 10k ohm ±5% .063W 0603 569-0155-103R 303 3.6k ohm ±5% .063W 0603 569-0155-362R 304 1k ohm ±5% .063W 0603 569-0155-102R 305 2.2k ohm ±5% .063W 0603 569-0155-222R 306 270 ohm ±5% .063W 0603 569-0155-271R 401 10 ohm ±5% .063W 0603 569-0155-100R 402 39k ohm ±5% .063W 0603 569-0155-393R 403 10k ohm ±5% .063W 0603 569-0155-103R 404 1.2k ohm ±5% .063W 0603 569-0155-122R 501 150 ohm ±5% .063W 0603 569-0155-151R 502 39 ohm ±5% .063W 0603 569-0155-390R 503 150 ohm ±5% .063W 0603 569-0155-151R 504 470 ohm ±5% .063W 0603 569-0155-471R 505 470 ohm ±5% .063W 0603 569-0155-471R 511 4.7k ohm ±5% .063W 0603 569-0155-472R 512 1.8k ohm ±5% .063W 0603 569-0155-182R 513 10 ohm ±5% .063W 0603 569-0155-100R 514 560 ohm ±5% .063W 0603 569-0155-561R 515 100 ohm ±5% .063W 0603 569-0155-101R 533 470 ohm ±5% .063W 0603 569-0155-471R 534 100k ohm ±5% .063W 0603 569-0155-104R 535 100k ohm SMD trimmer 562-0130-104R 536 20k ohm ±5% .063W 0603 569-0155-203R 561 100 ohm ±5% .063W 0603 569-0155-101R 565 47k ohm ±5% .063W 0603 569-0155-473R 573 10k ohm ±5% .063W 0603 569-0155-103R 574 10k ohm ±5% .063W 0603 569-0155-103R 581 10 ohm ±5% .063W 0603 569-0155-100R 583 10k ohm ±5% .063W 0603 569-0155-103SYMBOL PARTNUMBER DESCRIPTION NUMBERR 584 10 ohm ±5% .063W 0603 569-0155-100R 586 10k ohm ±5% .063W 0603 569-0155-103R 591 51 ohm ±5% .063W 0603 569-0155-510R 592 1k ohm ±5% .063W 0603 569-0155-102R 593 51 ohm ±5% .063W 0603 569-0155-510R 594 1k ohm ±5% .063W 0603 569-0155-102R 701 100 ohm ±5% .063W 0603 569-0155-101R 702 1k ohm ±5% .063W 0603 569-0155-102R 703 22k ohm ±5% .063W 0603 569-0155-223R 704 15k ohm ±5% .063W 0603 569-0155-153R 705 1k ohm ±5% .063W 0603 569-0155-102R 706 1M ohm ±5% .063W 0603 569-0155-105R 801 10k ohm ±5% .063W 0603 569-0155-103R 802 20 ohm ±5% .063W 0603 569-0155-200R 803 4.7k ohm ±5% .063W 0603 569-0155-472R 804 10k ohm ±5% .063W 0603 569-0155-103R 811 4.7k ohm ±5% .063W 0603 569-0155-472R 812 4.7k ohm ±5% .063W 0603 569-0155-472R 813 4.7k ohm ±5% .063W 0603 569-0155-472R 814 4.7k ohm ±5% .063W 0603 569-0155-472R 815 4.7k ohm ±5% .063W 0603 569-0155-472R 816 4.7k ohm ±5% .063W 0603 569-0155-472R 817 4.7k ohm ±5% .063W 0603 569-0155-472R 821 100k ohm ±5% .063W 0603 569-0155-104R 822 4.7k ohm ±5% .063W 0603 569-0155-472R 823 100k ohm SMD trimmer 562-0130-104R 825 100k ohm SMD trimmer 562-0130-104R 826 10k ohm ±5% .063W 0603 569-0155-103R 827 220k ohm SMD trimmer 562-0130-224R 829 27k ohm ±5% .063W 0603 569-0155-273R 831 10 ohm ±5% .063W 0603 569-0155-100R 832 12k ohm ±5% .063W 0603 569-0155-123R 833 18k ohm ±5% .063W 0603 569-0155-183R 841 10k ohm ±5% .063W 0603 569-0155-103R 842 100 ohm ±5% .063W 0603 569-0155-101R 843 1.5k ohm ±5% .063W 0603 569-0155-152R 847 10k ohm ±5% .063W 0603 569-0155-103R 892 18 ohm ±5% .063W 0603 569-0155-180R 893 18 ohm ±5% .063W 0603 569-0155-180R 894 18 ohm ±5% .063W 0603 569-0155-180R 901 4.7k ohm ±5% .063W 0603 569-0155-472R 902 2.2k ohm ±5% .063W 0603 569-0155-222R 903 10k ohm ±5% .063W 0603 569-0155-103R 911 10k ohm ±5% .063W 0603 569-0155-103R 912 10k ohm ±5% .063W 0603 569-0155-103R 914 10k ohm ±5% .063W 0603 569-0155-103R 915 47k ohm ±5% .063W 0603 569-0155-473R 916 47k ohm ±5% .063W 0603 569-0155-473R 917 1k ohm ±5% .063W 0603 569-0155-102
PARTS LIST7-6June 1997Part No. 001-3412-002 SYMBOL PARTNUMBER DESCRIPTION NUMBERU 111 Quad op amp SO-14 331 544-2020-017U 131 Voltage regulator SO-6 544-2603-093U 141 Voltage regulator SO-6 544-2603-093U 211 Double balanced mixer 544-0007-014U 241 LV FM IF SA676DK 544-2002-037U 261 Single op amp SOT-23-5 544-2016-001U 521 5W RF power module 544-4001-064U 581 Op amp SO-8 MC33172D 544-2019-017U 811 Fractional-N synthesizer 544-3954-027U 911 Quad 8-bit TLC5620ID 544-2031-014U 912 8-stage shift register SOIC 544-3016-094U 913 3 - 2-chnl analog mux/demux 544-3016-053Y 801 17.5 MHz TCXO ±1.5 PPM 518-7009-521Z 201 411 MHz helical filter SMD 532-1005-040(403-419 MHz)427 MHz helical filter SMD 532-1005-041(419-435 MHz)443 MHz helical filter SMD 532-1005-042(435-451 MHz)459 MHz helical filter SMD 532-1005-044(450-470 MHz)472 MHz helical filter SMD 532-1005-045(464-480 MHz)488 MHz helical filter SMD 532-1005-046(480-496 MHz)504 MHz helical filter SMD 532-1005-047(496-512 MHz)Z 202 411 MHz helical filter SMD 532-1005-040(403-419 MHz)427 MHz helical filter SMD 532-1005-041(419-435 MHz)443 MHz helical filter SMD 532-1005-042(435-451 MHz)459 MHz helical filter SMD 532-1005-044(450-470 MHz)472 MHz helical filter SMD 532-1005-045(464-480 MHz)488 MHz helical filter SMD 532-1005-046(480-496 MHz)504 MHz helical filter SMD 532-1005-047(496-512 MHz)Z 221 52.95 MHz 4-pole 8 kHz BW 532-0009-011(12.5 kHz bandwidth)52.95 MHz 4-pole 15 kHz BW 532-0009-009(25 kHz bandwidth)SYMBOL PARTNUMBER DESCRIPTION NUMBERZ 251 450 kHz, 9 kHz BW 532-2004-015(12.5 kHz bandwidth)450 kHz, 20 kHz BW 532-2004-013(25 kHz bandwidth)Z 252 450 kHz, 9 kHz BW 532-2004-015(12.5 kHz bandwidth)450 kHz, 20 kHz BW 532-2004-013(25 kHz bandwidth)VCO (450-470 MHz)PART NO. 023-3412-540C 850 68 pF ±5% NPO 0603 510-3674-680C 851 68 pF ±5% NPO 0603 510-3674-680C 852 8.2 pF ±0.1% NPO 0603 510-3674-829C 853 12 pF ±5% NPO 0603 510-3674-120C 854 68 pF ±5% NPO 0603 510-3674-680C 855 68 pF ±5% NPO 0603 510-3674-680C 856 2.7 pF ±0.1% NPO 0603 510-3673-279C 858 68 pF ±5% NPO 0603 510-3674-680C 859 5.6 pF ±0.1% NPO 0603 510-3673-569C 861 6.8 pF ±0.1% NPO 0603 510-3673-689C 862 6.8 pF ±0.1% NPO 0603 510-3673-689C 863 68 pF ±5% NPO 0603 510-3674-680C 864 10 pF ±0.1% NPO 0603 510-3673-100C 865 68 pF ±5% NPO 0603 510-3674-680C 866 68 pF ±5% NPO 0603 510-3674-680C 867 68 pF ±5% NPO 0603 510-3674-680C 868 1.8 pF ±0.1% NPO 0603 510-3673-189C 869 1 pF ±0.1% NPO 0603 510-3673-109C 870 1 pF ±0.1% NPO 0603 510-3673-109C 871 100 pF ±5% NPO 0603 510-3674-101C 873 100 pF ±5% NPO 0603 510-3674-101C 874 3.3 pF ±0.1% NPO 0603 510-3673-339C 876 8.2 pF ±0.1% NPO 0603 510-3673-829C 877 1 pF ±0.1% NPO 0603 510-3673-109C 878 10 pF ±0.1% NPO 0603 510-3673-100CR850 Pin switch diode SOT-23 523-1504-001CR851 Varactor SOD-323 BB535 523-5005-022CR852 Varactor diode SOD-123 523-5005-020CR853 Varactor diode SOD-123 523-5005-020CR854 Varactor SOD-323 BB535 523-5005-022CR855 Varactor SOD-323 BB535 523-5005-022CR856 Varactor SOD-323 BB535 523-5005-022
PARTS LIST7-7June 1997 Part No. 001-3412-002SYMBOL PARTNUMBER DESCRIPTION NUMBERL 851 150 nH ±10% SMD 0805 542-9003-158L 852 150 nH ±10% SMD 0805 542-9003-158L 853 22 nH inductor LL2012 F18N 542-9003-227L 854 150 nH ±10% SMD 0805 542-9003-158L 855 56 nH inductor LL2012 F56N 542-9003-567L 856 22 nH ±10% SMD 0805 542-9003-227Q 850 NPN transistor NE85619 576-0003-651Q 851 NPN transistor NE85619 576-0003-651Q 852 NPN transistor NE85619 576-0003-651Q 853 NPN transistor NE85619 576-0003-651R 851 10k ohm ±5% .063W 0603 569-0155-103R 852 47k ohm ±5% .063W 0603 569-0155-473R 853 47k ohm ±5% .063W 0603 569-0155-473R 854 10 ohm ±5% .063W 0603 569-0155-100R 856 10 ohm ±5% .063W 0603 569-0155-100R 857 6.8k ohm ±5% .063W 0603 569-0155-682R 858 1k ohm ±5% .063W 0603 569-0155-102R 862 10k ohm ±5% .063W 0603 569-0155-103R 863 10 ohm ±5% .063W 0603 569-0155-100R 864 10k ohm ±5% .063W 0603 569-0155-103R 865 10k ohm ±5% .063W 0603 569-0155-103R 866 390 ohm ±5% .063W 0603 569-0155-391R 867 12k ohm ±5% .063W 0603 569-0155-123R 868 330 ohm ±5% .063W 0603 569-0155-331R 869 270 ohm ±5% .063W 0603 569-0155-271R 870 18 ohm ±5% .063W 0603 569-0155-180R 871 3.9k ohm ±5% .063W 0603 569-0155-392R 872 1.2k ohm ±5% .063W 0603 569-0155-122R 874 330 ohm ±5% .063W 0603 569-0155-331R 875 270 ohm ±5% .063W 0603 569-0155-271Z 850 SMD resonator 542-9004-006SYMBOL PARTNUMBER DESCRIPTION NUMBERVCOPART NO. 023-3474-X40C 850 68 pF ±5% NPO 0603 510-3674-680C 851 68 pF ±5% NPO 0603 510-3674-680(403-496 MHz)47 pF ±5% NPO 0603 510-3674-470(496-512 MHz)C 852 9.1 pF ±5% NPO 0603 510-3673-919(403-419 MHz)8.2 pF ±0.1% NPO 0603 510-3674-829(419-451 MHz)7.5 pF ±0.1% NPO 0603 510-3674-759(464-496 MHz)6.8 pF ±5% NPO 0603 510-3674-689(496-512 MHz)C 853 12 pF ±5% NPO 0603 510-3674-120(403-419 MHz)10 pF ±5% NPO 0603 510-3674-100(419-451 MHz)9.1 pF ±5% NPO 0603 510-3674-919(464-480 MHz)8.2 pF ±5% NPO 0603 510-3674-829(480-512 MHz)C 854 100 pF ±5% NPO 0603 510-3674-101(403-451/464-480 MHz)68 pF ±5% NPO 0603 510-3674-680(480-496 MHz)47 pF ±5% NPO 0603 510-3674-470(480-496 MHz)C 855 68 pF ±5% NPO 0603 510-3674-680C 856 2.7 pF ±0.1% NPO 0603 510-3673-279C 858 68 pF ±5% NPO 0603 510-3674-680C 859 8.2 pF ±0.1% NPO 0603 510-3673-829(403-419 MHz)7.5 pF ±0.1% NPO 0603 510-3673-759(419-451 MHz)6.8 pF ±0.1% NPO 0603 510-3673-689(464-512 MHz)C 860 1 pF ±0.1% NPO 0603 510-3673-109(403-419/435-451 MHz Only)C 861 8.2 pF ±0.1% NPO 0603 510-3673-829(403-419 MHz)6.8 pF ±0.1% NPO 0603 510-3673-689(419-451 MHz)5.6 pF ±0.1% NPO 0603 510-3673-569(464-480 MHz)6.8 pF ±0.1% NPO 0603 510-3673-689(480-512 MHz)
PARTS LIST7-8June 1997Part No. 001-3412-002 SYMBOL PARTNUMBER DESCRIPTION NUMBERC 862 6.8 pF ±0.1% NPO 0603 510-3673-689C 863 100 pF ±0.1% NPO 0603 510-3673-101(403-419 MHz)68 pF ±5% NPO 0603 510-3674-680(419-451/464-512 MHz)C 864 10 pF ±0.1% NPO 0603 510-3673-100C 865 100 pF ±0.1% NPO 0603 510-3673-101(403-419 MHz)68 pF ±5% NPO 0603 510-3674-680(419451/464-512 MHz)C 866 100 pF ±0.1% NPO 0603 510-3673-101(403-419 MHz)68 pF ±5% NPO 0603 510-3674-680(419-451/464-512 MHz)C 867 100 pF ±0.1% NPO 0603 510-3673-101(403-419 MHz)68 pF ±5% NPO 0603 510-3674-680(419-451/464-512 MHz)C 868 2.4 pF ±0.1% NPO 0603 510-3673-249(403-419 MHz)2.2 pF ±0.1% NPO 0603 510-3673-229(419-435 MHz)1.8 pF ±0.1% NPO 0603 510-3673-189(435-451 MHz)1.2 pF ±0.1% NPO 0603 510-3673-129(464-480 MHz)1.8 pF ±0.1% NPO 0603 510-3673-189(480-496 MHz)1.5 pF ±0.1% NPO 0603 510-3673-159(496-512 MHz)C 869 1 pF ±0.1% NPO 0603 510-3673-109(464-496 MHz)C 870 1 pF ±0.1% NPO 0603 510-3673-109C 871 100 pF ±5% NPO 0603 510-3674-101C 873 100 pF ±5% NPO 0603 510-3674-101C 874 3.3 pF ±0.1% NPO 0603 510-3673-339(403-419 MHz)2.7 pF ±0.1% NPO 0603 510-3673-279(419-435 MHz)3.3 pF ±0.1% NPO 0603 510-3673-339(435-451/464-496 MHz)3.9 pF ±0.1% NPO 0603 510-3673-399(496-512 MHz)C 876 10 pF ±0.1% NPO 0603 510-3673-100(403-419 MHz)9.1 pF ±0.1% NPO 0603 510-3673-919(419-435 MHz)8.2 pF ±0.1% NPO 0603 510-3673-829(435-451/464-512 MHz)SYMBOL PARTNUMBER DESCRIPTION NUMBERC 877 1.2 pF ±0.1% NPO 0603 510-3673-129(403-435 MHz)1 pF ±0.1% NPO 0603 510-3673-109(435-451/464-512 MHz)C 878 10 pF ±0.1% NPO 0603 510-3673-100CR850 Pin switch diode SOT-23 523-1504-001CR851 Varactor SOD-323 BB535 523-5005-022CR852 Varactor diode SOD-123 523-5005-020CR853 Varactor diode SOD-123 523-5005-020CR854 Varactor SOD-323 BB535 523-5005-022CR855 Varactor SOD-323 BB535 523-5005-022CR856 Varactor SOD-323 BB535 523-5005-022L 851 82 nH ±10% SMD 0805 542-9003-827(403-435 MHz)150 nH ±10% SMD 0805 542-9003-158(435-451/464-512 MHz)L 852 150 nH ±10% SMD 0805 542-9003-158L 853 22 nH ±10% SMD 0805 542-9003-227(403-451/464-480 MHz)18 nH inductor LL2012 F18N 542-9003-187(480-512 MHz)L 854 150 nH ±10% SMD 0805 542-9003-158L 855 56 nH inductor LL2012 F56N 542-9003-567L 856 27 nH ±10% SMD 0805 542-9003-277(403-435 MHz)22 nH ±10% SMD 0805 542-9003-227(435-451/464-480 MHz)18 nH ±10% SMD 0805 542-9003-187(480-512 MHz)L 861 15 nH ±10% SMD 0805 542-9003-157(480-496 MHz)12 nH ±10% SMD 0805 542-9003-127(496-512 MHz)Q 850 NPN transistor NE85619 576-0003-651Q 851 NPN transistor NE85619 576-0003-651Q 852 NPN transistor NE85619 576-0003-651Q 853 NPN transistor NE85619 576-0003-651R 851 10k ohm ±5% .063W 0603 569-0155-103R 852 47k ohm ±5% .063W 0603 569-0155-473R 853 47k ohm ±5% .063W 0603 569-0155-473R 854 10 ohm ±5% .063W 0603 569-0155-100R 856 10 ohm ±5% .063W 0603 569-0155-100R 857 6.8k ohm ±5% .063W 0603 569-0155-682R 858 1k ohm ±5% .063W 0603 569-0155-102
PARTS LIST7-9June 1997 Part No. 001-3412-002SYMBOL PARTNUMBER DESCRIPTION NUMBERR 862 10k ohm ±5% .063W 0603 569-0155-103R 863 10 ohm ±5% .063W 0603 569-0155-100R 864 10k ohm ±5% .063W 0603 569-0155-103R 865 10k ohm ±5% .063W 0603 569-0155-103R 866 470 ohm ±5% .063W 0603 569-0155-471R 867 12k ohm ±5% .063W 0603 569-0155-123R 868 390 ohm ±5% .063W 0603 569-0155-391R 869 270 ohm ±5% .063W 0603 569-0155-271R 870 18 ohm ±5% .063W 0603 569-0155-180R 871 3.9k ohm ±5% .063W 0603 569-0155-392R 872 1.8k ohm ±5% .063W 0603 569-0155-182R 874 680 ohm ±5% .063W 0603 569-0155-681R 875 270 ohm ±5% .063W 0603 569-0155-271Z 850 SMD resonator 542-9004-002(403-4135MHz)SMD resonator 542-9004-004(435-451 MHz)SMD resonator 542-9004-006(464-480 MHz)SMD resonator 542-9004-007(480-496 MHz)SMD resonator 542-9004-008(496-512 MHz)
PARTS LIST7-10June 1997Part No. 001-3412-002 This page intentionally left blank.
8-1June 1997 Part No. 001-3412-002SECTION 8 SCHEMATICS AND COMPONENT LAYOUTSTRANSISTOR AND DIODE BASINGREFERENCE TABLETRANSISTORSPart Number Basing Diagram Identification576-0003-634 23B576-0003-636 2R25576-0003-640 5576-0003-651 2 24576-0003-658 21A576-0006-019 16T576-0006-027 4P1F576-0013-032 26D576-0013-046 28C576-0013-700 2BR576-0013-701 2ZRDIODES523-1504-001 34D523-1504-002 35A523-1504-016 35F523-1504-020 3523-5005-022 35B523-1504-023 3A7IC BASINGREFERENCE TABLEPart Number Basing Diagram Identification544-0007-014 1U211544-2002-037 4U241544-2016-001 1U261544-2019-017 2U581544-2020-017 3U111544-2031-014 3U911544-2603-093 1U131/U141544-3016-053 3U913544-3016-094 5U912544-3954-027 4U811TOPVIEWGSD1TOPVIEWCBE2TOPVIEWCCEB4TOPVIEW3ANCCTOPVIEW5GNDINOUTGND6854120 1110116 98114 8714311 2 345
SCHEMATICS AND COMPONENT LAYOUTS8-2June 1997Part No. 001-3412-002 Figure 8-1 3412 INTERCONNECTDATAGROUNDRSSIMOD INSYNTH LOCKSYNTH ENCLOCKDIAG ENDEMODDIAGGROUNDSYNTH LOCKSYNTH ENDATACLOCKDEMODJ201WIDE BAND OUTRSSIAUDIO OUTGROUNDAUDIO INCARRIER DETECTPTTWIDE BAND IN1211123456789101314MOD INDIAG ENRSSIDIAGFREQ SEL1234567891012345GROUNDRX DATATX DATASLEEP/WAKECONNECTORPROGRAMMINGUSER INTERFACELOADER BOARDRF BOARDJ501ANTENNAVCOW0855W0854W0859W0856W0852W0851W0854CONTROLGROUNDMODULATIONT/R PIN SHIFTVCO OUTPRESCALER RF OUT+4.6V DC-2.0VVCO INT/R PIN SHIFTMODULATIONGROUNDCONTROLPRESCALER RF IN+4.6V DC-2.0VJ10411678910 GROUNDGROUNDNCPRG0NCPRG1PRG2J201J102+13.3V DC+13.3V DC INTX ENRX ENRF EN+13.3V DC SWITCHEDTX ENRX ENRF EN023-3240-330W0850W0857 MODULATION ADJUST
SCHEMATICS AND COMPONENT LAYOUTS8-3June 1997 Part No. 001-3412-002Figure 8-2 VCO COMPONENT LAYOUT (COMPONENT SIDE VIEW)
SCHEMATICS AND COMPONENT LAYOUTS8-4June 1997Part No. 001-3412-002 Figure 8-3 TRANSCEIVER COMPONENT LAYOUT (COMPONENT SIDE VIEW)L222L553L552L551L554U211C555C556C553C554C552U912U911U913Q124 Q531L211Z221 Z222U111U521R533R124C122C121 C123 R116R536C536C221L221C125 +R114R113R112C113C115C101C103R102C106C104C266C261R263+++EP111L253R535C102C105C114C116Q101Q101Q123Q122Q121C535 C581R521R126C123C124R534R115R111C111C112R117R913 C277R255J201R911R912C911R171 C172C134C136C146C144R141 C133+C171C145C135++++C132C141U131U141Q131R134R133C137R131R142C142 C143C131Z252 Z251U261C268R265R264C262Y801A801VCOTP831R827R825Z201Z202J50112 345Q172Q17112345678910 11 12 13 14R912R914 R916R915 Q911R917R823
SCHEMATICS AND COMPONENT LAYOUTS8-5June 1997 Part No. 001-3412-002Figure 8-4 TRANSCEIVER COMPONENT LAYOUT (OPPOSITE COMPONENT SIDE VIEW)C707CR701Q401Q701L401L402L403C708C703C701 R704C702R705C704C402C404R404C405C407R401R402R403C401C403R702R701 C709C706+C803C406C408R801C409R703 R833 R843C837R821R826C804C805C806R803R804R841C848C847C846 C841C845 C842R842 C843C844R832R831R892C362R303R302C304R304 C306C307C306R301C903C902R901R802C850C849C813R817R822C822R829C825R847C815C831C816C301R893R894C812C811R816R815R813R814R812R811C309C305R305+C821C836C833C303L301L302C832C832 ++Q901Q801Q842Q841L811Q301U811CR901CR562CR231Q202Q201C561L202L201L555L561CR561R565C205C544C543C542C541C202C201C209 C203C204R205C208C207 C206R204 C210R201R202R203C562C564C563R561R593C596C584C585C593R586C583C582R592C591C595R581 R584C594R594R583C592C551C521C532C508C507C506C505R591CR592CR591U581Q211EP501EP533+C522EP531EP534EP532C223R121R122R206C215R213C214R211R208C213C211C212R212C222C534R574R573C582C533C523C524C531R132C233Q231R235C235C232R261C266C265C275R234R233R232R231C231C234+C264U241R262C279C276C271C272R272C153C154C155C156C157C158C159C160C161C162C163C501 R503 R502 R501R511C513C514C518R505R504L511L513L512L501Q511Q501C503C502C511R513C516C517R514 C515R512C519R515C504C512 C267R275C152C151C801C802R271 C273Q173Q302R902R903+C826C827
SCHEMATICS AND COMPONENT LAYOUTS8-6June 1997Part No. 001-3412-002 This page intentionally left blank.
SCHEMATICS AND COMPONENT LAYOUTS8-7June 1997 Part No. 001-3412-002REVISEDFigure 8-5 SCHEMATIC (1 OF 2)
SCHEMATICS AND COMPONENT LAYOUTS8-8June 1997Part No. 001-3412-002 REVISEDFigure 8-6 SCHEMATIC (2 OF 2)

Navigation menu