Telit Wireless Solutions MS Bluetooth LE module User Manual Stollmann Dokumentation

Stollmann E+V GmbH Bluetooth LE module Stollmann Dokumentation

user manual

BlueMod+S/AI Hardware Reference Release r00d01
BlueMod+S/AI Hardware Reference www.stollmann.de Page 2 of 52 Note This device was developed for the purpose of communication in an office environment. It is intended solely for our industrial clients for physical integration into their own technical products after careful examination by experienced technical personnel for its suitability for the intended purpose. The device was not developed for or intended for use in any specific customer application. The firmware of the device may have to be adapted to the specific intended modalities of use or even replaced by other firmware in order to ensure flawless function in the respective areas of application. Performance data (range, power requirements, etc.) may depend on the operating environment, the area of application, the configuration, and method of control, as well as on other conditions of use; these may deviate from the technical specifications, the Design Guide specifications, or other product documentation. The actual performance characteristics can be determined only by measurements subsequent to integration. Variations in the performance data of mass-produced devices may occur due to individual differences between such devices. Device samples were tested in a reference environment for compliance with the legal requirements applicable to the reference environment. No representation is made regarding the compliance with legal, regulatory, or other requirements in other environments. No representation can be made and no warranty can be assumed regarding the suitability of the device for a specific purpose as defined by our customers. Stollmann reserves the right to make changes to the hardware or firmware or to the specifications without prior notice or to replace the device with a successor model. Of course, any changes to the hardware or firmware of any devices for which we have entered into a supply agreement with our customers will be made only if, and only to the extent that, such changes can reasonably be expected to be acceptable to our customers. No general commitment will be made regarding periods of availability; these must be subject to individual agreement. All agreements are subject to our Terms and Conditions for Deliveries and Payments, a copy of which is available from Stollmann. Copyright © 2013 Stollmann E+V GmbH Trademarks The Bluetooth® word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by Stollmann E+V GmbH is under license. Other trademarks and trade names are those of their respective owners.
BlueMod+S/AI Hardware Reference www.stollmann.de Page 3 of 52 Table of contents 1 Introduction .............................................................................................................................. 8 1.1 Feature Summary ............................................................................................................. 8 1.2 Applications ...................................................................................................................... 9 Support for any additional profile is possible on request........................................................... 9 1.2.1 General Cable Replacement ...................................................................................... 9 1.2.2 Industry ...................................................................................................................... 9 1.2.3 POS/Advertising ........................................................................................................ 9 1.2.4 Healthcare and Medical ............................................................................................. 9 1.2.5 Sports and Fitness ..................................................................................................... 9 1.2.6 Entertainment ............................................................................................................ 9 2 Block Diagram ....................................................................................................................... 10 3 Application Interface .............................................................................................................. 11 3.1 Power Supply ................................................................................................................. 11 3.2 Power-up Slew-Rate ....................................................................................................... 11 3.3 Reset .............................................................................................................................. 12 3.4 Serial Interface................................................................................................................ 14 3.4.1 3-Wire Serial Interface ............................................................................................. 15 3.4.2 Baudrate Deviation .................................................................................................. 16 3.5 GPIO Interface ................................................................................................................ 17 3.6 I2C Interface .................................................................................................................... 17 3.7 SPI Serial Peripheral Interface ........................................................................................ 18 3.8 Bluetooth Radio Interface ............................................................................................... 18 3.9 Slow Clock Interface ....................................................................................................... 19 3.9.1 SLCK Specification (External Supplied Signal) ........................................................ 19 3.9.2 32,768 kHz Crystal Oscillator Specification (32k XOSC) .......................................... 19 3.9.3 Connection of an External 32,768 kHz Crystal ......................................................... 20 3.10 Test Mode Enable ........................................................................................................... 20 3.11 Operating in a Power-Switched Environment .................................................................. 21 3.12 Serial Wire Interface ....................................................................................................... 21 4 Module Pins ........................................................................................................................... 22 4.1 Pin Numbering ................................................................................................................ 22
BlueMod+S/AI Hardware Reference www.stollmann.de Page 4 of 52 4.2 Pin Description................................................................................................................ 23 4.2.1 General Pin Description ........................................................................................... 23 4.2.2 Application Specific Pin Description ......................................................................... 24 4.2.2.1 TIO Pin Configuration ........................................................................................... 24 4.3 Handling of Unused Signals ............................................................................................ 25 5 Electrical Characteristics ........................................................................................................ 26 5.1 Absolute Maximum Ratings ............................................................................................ 26 5.2 Electrical Requirements .................................................................................................. 26 5.3 Operating Conditions ...................................................................................................... 26 5.4 Environmental Requirements .......................................................................................... 27 5.5 DC Parameter ................................................................................................................. 27 5.5.1 General Purpose I/O (GPIO) .................................................................................... 27 5.5.2 EXT-RES# ............................................................................................................... 28 5.5.3 External Slow Clock SLCK ....................................................................................... 28 5.6 Power Consumption and Power Down Modes ................................................................ 29 5.6.1 Terminal I/O Configuration ....................................................................................... 29 5.7 RF Performance ............................................................................................................. 31 5.7.1 BLE Receiver ........................................................................................................... 31 5.7.2 BLE Transmitter ....................................................................................................... 32 5.7.3 Antenna-Gain and Radiation Pattern ....................................................................... 34 5.8 Power-Up Time ............................................................................................................... 34 6 Mechanical Characteristics .................................................................................................... 35 6.1 Dimensions ..................................................................................................................... 35 6.2 Recommended Land Pattern .......................................................................................... 35 6.3 Re-flow Temperature-Time Profile .................................................................................. 36 6.4 Placement Recommendation .......................................................................................... 37 6.5 Housing Guidelines ......................................................................................................... 37 6.6 Antenna Issues ............................................................................................................... 37 6.7 Safety Guidelines ............................................................................................................ 38 7 Application Diagram ............................................................................................................... 39 8 Approvals/Certifications ......................................................................................................... 40 8.1 Declaration of Conformity CE .......................................................................................... 40
BlueMod+S/AI Hardware Reference www.stollmann.de Page 5 of 52 8.2 FCC Compliance ............................................................................................................ 40 8.2.1 FCC Grant ............................................................................................................... 41 8.2.2 FCC Statement ........................................................................................................ 42 8.2.3 FCC Caution ............................................................................................................ 42 8.2.4 FCC Warning ........................................................................................................... 42 8.2.5 FCC RF-exposure Statement ................................................................................... 42 8.2.6 FCC Labeling Requirements for the End Product .................................................... 43 8.3 IC Compliance ................................................................................................................ 44 8.3.1 IC Grant ................................................................................................................... 44 8.3.2 IC Statement ............................................................................................................ 44 8.3.3 IC Caution ................................................................................................................ 44 8.3.4 IC RF-exposure Statement ...................................................................................... 45 8.3.5 IC Labeling Requirements for the End Product ........................................................ 45 8.3.6 IC Label Information BlueMod+S ............................................................................. 45 8.4 Bluetooth Qualification .................................................................................................... 45 8.5 RoHS Declaration ........................................................................................................... 46 9 Related Documents ............................................................................................................... 47 10 Packing ............................................................................................................................... 48 10.1 Tape ............................................................................................................................... 49 10.2 Reel ................................................................................................................................ 49 10.3 Package Label ................................................................................................................ 50 11 Ordering Information ........................................................................................................... 51 11.1 Part Numbers.................................................................................................................. 51 11.2 Standard Packing Unit .................................................................................................... 51 11.3 Evaluation Kit .................................................................................................................. 51 12 History ................................................................................................................................. 51 List of Figures Figure 1: BlueMod+S/AI Block Diagram ........................................................................................ 10 Figure 2: BlueMod+S Example Power Supply with LDO ............................................................... 11 Figure 3: BlueMod+S Example Reset ........................................................................................... 12 Figure 4: Serial Interface Signals .................................................................................................. 14
BlueMod+S/AI Hardware Reference www.stollmann.de Page 6 of 52 Figure 5: BlueMod+S Example Serial Interface (RS-232) Supporting UICP .................................. 15 Figure 6: BlueMod+S Example Serial Interface (Mixed Signal Level) ............................................ 16 Figure 7: BlueMod+S I2C Interface ................................................................................................ 17 Figure 8: BlueMod+S SPI Interface (Example: Master Mode) ....................................................... 18 Figure 9: BlueMod+S connection of external XTAL ....................................................................... 20 Figure 10: BlueMod+S Pin Numbering (Top View) ........................................................................ 22 Figure 11: Typical Antenna Radiation Pattern at 2402MHz ........................................................... 34 Figure 12: Typical Antenna Radiation Pattern at 2441MHz ........................................................... 34 Figure 13: Typical Antenna Radiation Pattern at 2480MHz ........................................................... 34 Figure 14: BlueMod+S/AI Dimensions .......................................................................................... 35 Figure 15: BlueMod+S Land Pattern ............................................................................................. 35 Figure 16: Soldering Temperature-Time Profile (For Reflow Soldering) ........................................ 36 Figure 17: BlueMod+S/AI Placement Recommendation ................................................................ 37 Figure 18: Typical Application Schematics .................................................................................... 39 List of Tables Table 1: Power up Rise Time Requirements ................................................................................. 11 Table 2: Pin States during Reset ................................................................................................... 13 Table 3: Deviation of Baudrates .................................................................................................... 16 Table 4: 32,768kHz Crystal Oscillator ........................................................................................... 19 Table 5: General Pin Assignment .................................................................................................. 23 Table 6: Application Specific Pin Assignments, TIO ...................................................................... 24 Table 7: Absolute Maximum Ratings ............................................................................................. 26 Table 8: Electrical Requirements .................................................................................................. 26 Table 9: DC Operating Conditions ................................................................................................ 26 Table 10: Environmental Requirements ........................................................................................ 27 Table 11: DC Characteristics, Digital IO ........................................................................................ 27 Table 12: DC Characteristics, EXT-RES# ..................................................................................... 28 Table 13: DC Characteristics, SLCK ............................................................................................. 28 Table 14: Supply Current Sleep Modes, no Radio Activity ............................................................ 29
BlueMod+S/AI Hardware Reference www.stollmann.de Page 7 of 52 Table 15: Supply Current BLE Terminal I/O Profile, Peripheral Device Role ................................. 30 Table 16: RF Performance BLE Receiver ..................................................................................... 31 Table 17: RF Performance BLE Transmitter ................................................................................. 33
BlueMod+S/AI Hardware Reference www.stollmann.de Page 8 of 52 1 Introduction This Hardware Reference documents how the BlueMod+S/AI can be integrated into customer systems. It addresses hardware specifications of the BlueMod+S/AI and requirements of the hardware environments for the BlueMod+S/AI. Notation: The term BlueMod+S refers to the BlueMod+S/AI and is used as an abbreviation. For detailed information about software interfaces refer to [5]. For the latest version of this document please check the following URL: http://www.stollmann.de/en/support/downloads/bluetooth-adapter/bluemod-s.html 1.1 Feature Summary • Bluetooth specification V4.0 compliant • Supports Bluetooth low energy • Fully qualified Bluetooth V4.0 Single Mode LE • CE certified • FCC and IC certified • Nordic nRF51822 inside • Fast Connection Setup • RF output power -30 up to +3dBm • RSSI • High sensitivity design • Supply voltage range 1,8V to 3,6V • Internal crystal oscillator (16 MHz) • LGA Surface Mount type. BlueMod+S: 17 x 10 x 2.6 mm3 • Pin compatible to Stollmann BlueMod+SR dual mode module • Shielded to be compliant to FCC full modular approval • Flexible Power Management • 128-bit AES encryption • High-speed UART interface • I2C Master • SPI Master/Slave interface • Low power comparator • Real Time Counter • Up to 19 digital IO’s for individual usage by embedded software • Up to 6 anlog inputs for individual usage by embedded software • 8/9/10bit ADC • Arm® CortexTM-M0 core for embedded profiles or application software • Manufactured in conformance with RoHS2 • Operating temperature -25 ... +75 °C • Weight: tbd. g
BlueMod+S/AI Hardware Reference www.stollmann.de Page 9 of 52 1.2 Applications The BlueMod+S is designed to be used in low power applications, like sensor devices. Some typical applications are described in this chapter. Supported profiles are: LE: • Terminal IO • any GATT based LE-profile Support for any additional profile is possible on request. 1.2.1 General Cable Replacement In case there is no standardized application specific profile available the BlueMod+S offers Stollmann’s Terminal I/O profile, which allows transparent data transfer over UART and supports Secure Simple Pairing, making the pairing process easy and the connection secure. Terminal I/O is available for iOS and Android as well as implemented in Stollmann’s dual mode module BlueMod+SR. 1.2.2 Industry BlueMod+S can be used to monitor and control motors, actuators, values and entire processes. 1.2.3 POS/Advertising BlueMod+S supports iBeacon or similar applications. 1.2.4 Healthcare and Medical Usage of Bluetooth is aimed mainly at devices that are used for monitoring vital data. Typical devices are blood glucose meter, blood pressure cuffs and pulse ox meters. Bluetooth BR/EDR and low energy were chosen by the Continua Health Alliance as transports for interoperable end to end communication. 1.2.5 Sports and Fitness In the sports and fitness segment the BlueMod+S is used in devices for positioning as well as monitoring vital data. Typical devices in this market are heart rate monitors, body temperature thermometers, pedometers, cadence meters, altimeter, positioning / GPS tracking and watches displaying information from sensors. 1.2.6 Entertainment Bluetooth technology is already used in a wide variety of devices in the entertainment sector, namely set-top boxes / gaming consoles. BlueMod+S is especially suited for use in remote controls, gaming controller and wireless mouse/keyboard applications.
BlueMod+S/AI Hardware Reference www.stollmann.de Page 10 of 52 2 Block Diagram nRF51822VSUPBlueMod+S/AIBalun+FilterRESETI2CUARTSPI12up to 73GND3.0V16MHzopt. 32kHzSerial Wire(DEBUG)onboardantenna2GPIOup to 19Analog Inup to 6 Figure 1: BlueMod+S/AI Block Diagram
BlueMod+S/AI Hardware Reference www.stollmann.de Page 11 of 52 3 Application Interface 3.1 Power Supply BlueMod+S require a power supply with the following characteristics: Typical: 3,0VDC, min.: 1,8VDC, max.: 3,6VDC, thereby delivering > 25 mA peak BlueMod+S is designed to be powered from 3V coin cell batteries e.g. CR2032 directly, or any other power source complying with the given requirements. For optimal performance a stable supply is recommended. BlueMod+SXC6204B-3.3E-6,F-6VSUPGND:A-7,E-7,F-7,B-[5:8],C-[5:8],D-8,E-8,F-810µ + 100n1µVOUTVSSVINCE5 132+5VDC Figure 2: BlueMod+S Example Power Supply with LDO 3.2 Power-up Slew-Rate Parameter Min Max Unit VSUP rise time rate (1), (2) 0 60 ms (1) 0V to 1,8V (2) The on-chip power-on reset circuitry may not function properly for rise times outside the specified interval Table 1: Power up Rise Time Requirements
BlueMod+S/AI Hardware Reference www.stollmann.de Page 12 of 52 3.3 Reset BlueMod+S are equipped with circuitry for generating power-up reset from the supply voltage VSUP, as well as brownout detection. During power-up, reset is kept until the supply voltage VSUP has reached the minimal operating voltage. VSUP risetime has to comply with Table 1 for power-up reset to function properly. A reset is also generated when VSUP falls below the threshold of the brownout detector (1,6V .. 1,7V with a hysteresis of about 30mV), and is released when VSUP rises above that threshold. By holding pin B-1 (EXT-RES#) at ≤ VSUP*0,3V for tHOLDRESETNORMAL ≥ 0,2µs, an external reset (pin reset) is generated. This pin has a fixed internal pull-up resistor (RPU = 11kΩ ... 16kΩ). EXT-RES# may be left open if not used. Note: The reset-functionality associated with pin EXT-RES# is shared with the serial wire debug feature (refer to 3.12). Inside the BlueMod+S module, EXT-RES# is connected to SWDIO via a 150R resistor. During a debug session the external reset function is not available; asserting of EXT-RES# to any level should be avoided. BlueMod+SE-6,F-6VSUPGND+3V3EXT-RES# B-1Reset-Switch is optionalPlease Note: EXT-RES# of BlueMod+S has approx. 13k internal pullup.1kReset signal is optionalHost MCUGPIOVDD Figure 3: BlueMod+S Example Reset
BlueMod+S/AI Hardware Reference www.stollmann.de Page 13 of 52 The following table shows the pin states of BlueMod+S during reset active. Pin Name State: BlueMod+S EXT-RES# Input with pull-up (1) XL-IN/SLCK Input floating (disconnected) XL-OUT Input floating (disconnected) UART-TXD Input floating (disconnected) UART-RXD Input floating (disconnected) UART-RTS# Input floating (disconnected) with pull-up resistor 470kΩ (2) UART-CTS# Input floating (disconnected) IUR-OUT# Input floating (disconnected) IUR-IN# Input floating (disconnected) GPIO[0:14] Input floating (disconnected) TESTMODE# Input floating (disconnected) BOOT0 Input floating (disconnected) SWDIO Input with pull-up (1) SWCLK Input with pull-down (1) (1) pull-up, pull-down: RPU, RPD is typ. 13kΩ (11kΩ to 16kΩ) (2) a discrete resistor is used Table 2: Pin States during Reset The pin states as indicated in Table 2 are kept until hardware initialization has started.
BlueMod+S/AI Hardware Reference www.stollmann.de Page 14 of 52 3.4 Serial Interface The serial interface of BlueMod+S is a high-speed UART interface supporting RTS/CTS flow control and interface-up/down mechanism according to the UICP+ protocol (refer to [3] ). Electrical interfacing is at CMOS levels (defined by VSUP; see chapter 5.5.1). • Transmission speeds are 9600 – 921600 bps and 1Mbps (asynchronous) • Character representation: 8 Bit, no parity, 1 stop bit (8N1) • Hardware flow-control with RTS and CTS (active low) Note: Transmission speed may be limited by firmware. See corresponding command reference [5] for further information. BlueMod+S Host UART-RXD UART-TXD UART-CTS# UART-RTS# IUR-IN# IUR-OUT# Figure 4: Serial Interface Signals The basic serial interface (with RTS/CTS flow control) uses only four signal lines (UART-RXD, UART-TXD, UART-CTS#, UART-RTS#). IUR-IN#, IUR-OUT# and GPIO[4] (see below) can be left unconnected. A substantially saving of power during idle phases can be achieved (see 5.6.1) when the UICP protocol is used (refer to [3] ). This protocol should be implemented on the host side as well. Signals IUR-IN# and IUR-OUT# should be connected to the host and may be mapped to DSR and DTR, if an RS232-style (DTE-type) interface is used (see Figure 5). When using the TIO firmware and applications, call control can be supported by GPIO[4]. Driving GPIO[4] to logic High level during a data transfer phase will “hang up” the connection and disconnect the Bluetooth link. This signal may be mapped to DSR, if an RS232-style (DTE-type) interface is used. Please refer to [5] for a functional specification. GPIO[4] can be left unconnected if this feature is not used.
BlueMod+S/AI Hardware Reference www.stollmann.de Page 15 of 52 3.4.1 3-Wire Serial Interface When using only GND and UART-RXD, UART-TXD serial lines, leave UART-RTS# and UART-CTS# open. Note: It is strongly recommended to use hardware flow control. Not using flow control can cause a loss of data. 2BlueMod+SGNDMAX324114+3V3222323784619TXDRXDRTS#CTS#IUR-OUT#IUR-IN#TXDRXDRTSCTSDTRDSRDCDRIRS232DSUB9 (male)DTE style connector pinout941051167819131812171615F-4D-2D-7F-3B-4D-5UART_TXDUART_RXDUART_RTS#UART_CTS#IUR-OUT#IUR-IN#SHDN#EN#100n100n28241+3V3100n 100n 100n2632725V+VCCV -GNDC2+C2-C1+C1-220R220R220R220R220R220R5SigGNDcan be left openVSUP+3V3 Figure 5: BlueMod+S Example Serial Interface (RS-232) Supporting UICP
BlueMod+S/AI Hardware Reference www.stollmann.de Page 16 of 52 VDDIO(+1.2V .. +3.6V)BlueMod+SGNDD-2F-4F-3D-7UART_RXDUART_TXDUART_CTS#UART_RTS#10µ+100n+1nSN74AVC4T245User Host SystemVSUPXC6204B-3.3VOUTVSSVINCE 1µ100k100kVCCB1B11B22B12B2 2A22A11A21A1VCCA1DIR1OE2DIR2OE(GPIO, Out, no pu/pd)(GPIO, Out, no pu/pd)TXDRTS#RXDCTS#+5VDCOE_DRV#BT_ENABLEVDD_HOST (+1.2 .. +3.6V)+3V3_switched Figure 6: BlueMod+S Example Serial Interface (Mixed Signal Level) 3.4.2 Baudrate Deviation The following table shows the deviation in percent of the standard data rates. The deviation may be caused by the inaccuracy of the crystal oscillator or granularity of the baud rate generator. Data Rate (bits/s) Deviation (%) 9600 ±1% 19200 38400 57600 115200 230400 460800 921600 1000000 Table 3: Deviation of Baudrates Note: The total deviation of sender and receiver shall not exceed 2,5% to prevent loss of data.
BlueMod+S/AI Hardware Reference www.stollmann.de Page 17 of 52 3.5 GPIO Interface It is possible to use the programmable digital I/Os GPIO[0:14] on the BlueMod+S. Their behavior has to be defined project specific in the firmware. Unused GPIO pins shall be left unconnected to stay compatible. There may be functions assigned to some in future versions of the firmware. 3.6 I2C Interface1 The I2C bus interface serves as an interface between the internal microcontroller and the serial I2C bus. BlueMod+S is the master and controls all I2C bus specific sequencing, protocol and timing. It supports standard (100kHz) and fast (400kHz) speed modes. The BlueMod+S as an I2C master must be the only master of the I2C bus (no multimaster capability). Clock stretching is supported. GPIO[1]/I2C-SDA and GPIO[0]/I2C-SCL can be used to form an I2C interface. It is required to connect 4k7 pull-up resistors on I2C-SCL and I2C-SDA when this interface is used. I2C-SCLI2C-SDAGPIO[0]/I2C-SCLGPIO[1]/I2C-SDABlueMod+SVSUPRpu+3.3VB-2D-3E-6,F-6+3.3VRpu+3.3V4k74k7 Figure 7: BlueMod+S I2C Interface 1 subject to firmware support, contact Stollmann for current status
BlueMod+S/AI Hardware Reference www.stollmann.de Page 18 of 52 3.7 SPI Serial Peripheral Interface2 The serial peripheral interface (SPI) allows for full-duplex, synchronous, serial communication with external devices. The interface can be configured as the master and then provides the communication clock (SCK) to the external slave device(s), or as the slave. The SPI Interface supports SPI-modes 0 through 3. Module pins are used as follows: • GPIO[2]: SPI-MOSI • GPIO[5]: SPI-MISO • GPIO[8]: SPI-SCK GPIO[8]/SPI-SCKGPIO[2]/SPI-MOSIBlueMod+SE-2SPI-Masterconnected deviceSPI-SlaveGPIO[5]/SPI-MISOD-1F-2SCK, SPI_CLKSDI, MOSISDO, MISOtypical signals: Figure 8: BlueMod+S SPI Interface (Example: Master Mode) 3.8 Bluetooth Radio Interface The BlueMod+S/AI presents an integrated ceramic antenna. It is highly recommended that you follow the design rule given in the Stollmann Application Note on Antenna design [4]. 2 subject to firmware support, contact Stollmann for current status
BlueMod+S/AI Hardware Reference www.stollmann.de Page 19 of 52 3.9 Slow Clock Interface Even though an external slow clock is not required for BLE operation, consumption of power during power-down modes can be reduced by feeding the module with an optional 32,768 kHz slow clock at pin XL-IN/SLCK, or connecting an XTAL (32,768kHz) and two capacitors C1, C2 at pins XL-IN and XL-OUT. 3.9.1 SLCK Specification (External Supplied Signal) • 32,768 kHz +/-250ppm; duty cycle 30...70%. • Signal may be a sine wave, a clipped sine wave, a square wave or a rail-to-rail digital signal. The amplitude must be at least 200mVpp. DC offset is not an issue as long as the input voltage is between VSS and VDD at all times. • connect signal SLCK to XL-IN/SLCK (A6) and leave XL-OUT (A5) open 3.9.2 32,768 kHz Crystal Oscillator Specification (32k XOSC) Symbol Item Condition Limit Unit Min Typ Max fNOM Crystal Frequency Tamb = 25°C 32,768 kHz fTOL Frequency Tolerance for BLE applications including temperature and aging (1) +/-250 ppm CL Load Capacitance 9 12,5 pF C0 Shunt Capacitance 2 pF RS Equivalent Series Resistor 50 80 kΩ PD Drive Level 1 µW Cpin Input Cap. on XL-IN and XL-OUT 4 pF (1) adjust crystal frequency by choosing correct value for C1, C2 (value depends on CL of crystal and layout) Table 4: 32,768kHz Crystal Oscillator The module’s firmware will detect the presence of a slow clock during the boot process and switch behavior appropriately.
BlueMod+S/AI Hardware Reference www.stollmann.de Page 20 of 52 3.9.3 Connection of an External 32,768 kHz Crystal Connect the 32,768 kHz crystal and two capacitors C1, C2 at pins A-6 (XL-IN/SLCK) and A-5 (XL-OUT). The crystal has to comply with specifications given in Table 1. The exact value of C1 and C2 depends on the crystal and the stray capacitance of the layout. Select C1, C2 such that the slow clock oscillator operates at the exact frequency at room temperature (25°C). The crystal and the capacitors shall be located close to pins A-5, A-6. Avoid long signal traces. CL = (C1+Cpin+Cs) * (C2+Cpin+Cs) / (C1+C2+2*Cpin+2*Cs) Cpin: see Table 4 Cs: stray capacitance, depends on layout Figure 9: BlueMod+S connection of external XTAL 3.10 Test Mode Enable For homologation purposes the ability of testmode operation like "Direct two wire UART Testmode" is mandatory. The Direct Test Mode (as defined by the Bluetooth SIG) and additional test functions are part of the BlueMod+S TIO-Firmware. Please refer to [7] and [8]. To enter and use test modes or DTM, access to the following signals is required: • BOOT0 • TESTMODE# • UART-RXD • UART-TXD • UART-CTS# • GND These pins shall be routed to some test pads on an outer layer, but can be left open during normal operation when not used. Please note the UART is required for operation of test modes. During the homologation process, UART-RXD and UART-TXD must be freely accessible and connected via some RS232 level shifter to the test equipment (like R&S CBT), whereas UART-CTS# must be set "active" (continuous low-level) to allow serial communication. XL-IN/SLCKBlueMod+SA-6Slow ClockXL-OUTA-532,768kHzCL: 9pFC1C2C1, C2 ~ 12pF
BlueMod+S/AI www.stollmann.de Page 21 of 52 3.11 Operating in a Power-Switched Environment A potential "back feeding" problem may arise, if the module is operated in an environment where its power supply (VSUP) is switched off by the application. This might be done to save some power in times Bluetooth is not needed. As stated in Table 7, the voltage on any I/O pin must not exceed VSUP by more than 0,3V at any time. Otherwise some current IINJ flows through the internal protection diodes. This may damage the module (please refer to chapter 5.1 for limits). There is no problem if the application circuit design and programming can assure that all signals directed towards BlueMod+S are set to low (U < 0,3V) before and while VSUP is turned off. If this is not guaranteed, at least a series resistor (about 1k) must be inserted into each signal path. This does protect the module but obviously cannot prevent from an unwanted, additional current flow in case of such signal being at high-level. It may be necessary to use driver chips in such appli-cations, that gate off these signals while VSUP is not present. 3.12 Serial Wire Interface The Serial Wire interface (SWDIO, SWCLK) is normally not used in a customer’s product. It is reserved for debugging purposes. Leave SWDIO, SWCLK unconnected. Only if you intend to use them for debugging purposes, make them available. Please be aware of the nRF51822 pin sharing SWDIO/nRESET (refer to [1]). On the BlueMod+S module, pin EXT-RES# is decoupled from SWDIO by a 150 Ω resistor; SWDIO is connected directly to pin SWDIO/nRESET of the nRF51822 chip. Nevertheless, avoid driving EXT-RES# to any logic level while in debug mode, since EXT-RES# will also be driven by the BlueMod+S or the debugger, when SDIO is driven by either of these. During any debugging session the external pushbutton reset functionality is not available. Please use the correct reset options of your serial wire debugger. Alternatively, power-off the system, remove the debugger and power-up again (refer to [1], Chapter 10 Debugger Interface (DIF)).
BlueMod+S/AI www.stollmann.de Page 22 of 52 4 Module Pins 4.1 Pin Numbering F1E1D1C1B1A1 A2 A3 A4 A5 A6 A7 A8F2E2D2C2B2F3E3D3C3B3F4E4D4C4B4F5E5D5C5B5F6E6D6C6B6F7E7D7C7B7F8E8D8C8B8 Figure 10: BlueMod+S Pin Numbering (Top View)
BlueMod+S/AI www.stollmann.de Page 23 of 52 4.2 Pin Description 4.2.1 General Pin Description Type: PU - pull-up; PD – pull-down; PWR – Power; I – Input; O – Output; I/O – bidir.; OD – open drain; PP – push/pull; RF: RadioFreq; I-DIS – Input Buffer Disconnected Pin Name Signal Type Act Function Alternate Function E-6 VSUP1 PWR +3,0V nom. F-6 VSUP2 PWR +3,0V nom C-1 not connected none A-7, E-7, F-7, B-[5,6,7,8], C-[5,6,7,8], D-8, E-8, F-8 GND PWR Ground A-8 ANT RF (4) reserved reserved B-1 EXT-RES# I-PU L User Reset A-6 XL-IN/SLCK I/O (3,5) 32,768kHz Slow Clock / XTAL AIN1 F-4 UART-TXD O-PP IUR Data OUT (6) D-2 UART-RXD I-PU IUR Data IN (6) D-7 UART-RTS# O-PU (1) L Flow Control/IUC F-3 UART-CTS# I-PD L Flow Control/IUC (6) B-4 IUR-OUT# O-PP L UICP Control D-5 IUR-IN# I-PD L UICP Control D-3 GPIO[0] I/O (3,5) GPIO (3) I2C-SCL, AIN7, AREF1 B-2 GPIO[1] I/O (3,5) GPIO (3) I2C-SDA, AIN6 D-1 GPIO[2] I/O (3,5) GPIO (3) SPI-MOSI E-4 GPIO[3] I/O (3,5) GPIO (3) D-4 GPIO[4] I/O (3,5) GPIO (3) F-2 GPIO[5] I/O (3,5) GPIO (3) SPI-MISO, AREF0 C-4 GPIO[6] I/O (3,5) GPIO (3) C-3 GPIO[7] I/O (3,5) GPIO (3) E-2 GPIO[8] I/O (3,5) GPIO (3) SPI-SCK, AIN2 A-3 not connected none A-1 GPIO[10] I/O (3,5) GPIO (3) A-4 not connected none A-2 GPIO[9] I/O (3,5) GPIO (3) F-1 TESTMODE# I-PU L Testmode Enable (6) AIN3 E-1 BOOT0 I-PD reserved (6) AIN4 E-3 SWDIO I/O-PU serial wire D-6 SWCLK I-PD serial wire C-2 GPIO[13] I/O (3,5) GPIO (3) B-3 GPIO[11] I/O (3,5) GPIO (3) AIN5 A-5 XL-OUT I/O (3,5) GPIO (3) / ext. XTAL 32,768kHz AIN0 F-5 GPIO[14] I/O (3,5) GPIO (3) E-5 GPIO[12] I/O (3,5) GPIO (3) Notes: (1) a discrete resistor is used (3) function depends on firmware (4) DNU: Do Not Use, Do Not Connect (5) GPIO pin. These pins may be programmed as analog-in, i-disconnected, i-float, i-pu, i-pd, o-pp (output push/pull), o-od (output open drain), o-os (output open source) or some alternate function; refer to [1], [2] (6) signal must be accessible for homologation purposes. Refer to 3.10 Test Mode Enable Table 5: General Pin Assignment
BlueMod+S/AI www.stollmann.de Page 24 of 52 4.2.2 Application Specific Pin Description 4.2.2.1 TIO Pin Configuration Type: PU – Pull-up; PD – pull-down; PWR – Power; I – Input; O – Output; I/O – bidir.; OD – open drain: PP – push/pull; RF: RadioFreq; I-DIS – Input Buffer Disconnected Pin Name Signal TIO-Function Type Act Description E-6 VSUP1 Power PWR +3,3V nom. F-6 VSUP2 Power PWR +3,3V nom C-1 not connected none A-7,E-7,F-7, B-[5,6,7,8], C-[5,6,7,8], D-8, E-8, F-8 GND Power PWR Ground A-8 ANT DNU (4) RF leave open B-1 EXT-RES# Reset I-PU L User Reset A-6 XL-IN/SLCK SLCK / XTAL I 32,768kHz Slow Clock (optional) F-4 UART-TXD TXD O-PP IUR Data OUT (6) D-2 UART-RXD RXD I-PU IUR Data IN (6) D-7 UART-RTS# /RTS O-PP (1) L Flow Control/IUC; refer to [3] F-3 UART-CTS# /CTS I-PD L Flow Control/IUC; refer to [3] (6) B-4 IUR-OUT# /IUR-OUT O-PP (3) L UICP Control; refer to [3] D-5 IUR-IN# /IUR-IN I (3) L UICP Control; refer to [3] D-3 SCL GPIO[0] GPIO[0] (3) I/O (3) GPIO (3) [I2C-SCL] B-2 SDA GPIO[1] GPIO[1] (3) I/O (3) GPIO (3) [I2C-SDA] D-1 IOC GPIO[2] IOC (3) I/O (3) GPIO (3) [SPI-MOSI] E-4 IOB GPIO[3] IOB (3) I/O (3) GPIO (3) D-4 GPIO[4] HANGUP I-PD optional; refer to [5] F-2 IOD GPIO[5] IOD (3) I/O (3) GPIO (3) [SPI-MISO] C-4 GPIO[6] reserved I-DIS GPIO (3) C-3 GPIO[7] GPIO7 I-DIS GPIO (3) E-2 IOA GPIO[8] IOA (3) I/O (3) GPIO (3) [SPI-SCK] [DEVICE READY#] A-3 not connected none none A-1 GPIO[10] DNU (4) I-DIS leave open A-4 not connected none none A-2 GPIO[9] DNU (4) I-DIS leave open F-1 TESTMODE# reserved I-PU L connect to test pad (6) E-1 BOOT0 reserved I-PD connect to test pad (6) E-3 SWDIO reserved I/O-PU leave open (serial wire) D-6 SWCLK reserved I-PD leave open (serial wire) C-2 GPIO[13] DNU (4) I-DIS leave open B-3 GPIO[11] DNU (4) I-DIS leave open A-5 XL-OUT XTAL I-DIS leave open if no ext. XTAL is connected F-5 GPIO[14] DNU (4) I-DIS leave open E-5 GPIO[12] DNU (4) I-DIS leave open Notes: (1) a discrete resistor is used (3) function depends on firmware. If function can be enabled using an AT-command, type is I-DIS when not enabled (4) DNU: Do Not Use, Do Not Connect (6) signal must be accessible for homologation purposes. Refer to 3.10 Test Mode Enable Table 6: Application Specific Pin Assignments, TIO
BlueMod+S/AI www.stollmann.de Page 25 of 52 4.3 Handling of Unused Signals Depending on the application, not all signals of BlueMod+S may be needed. The following list gives some hints how to handle unused signals. • EXT-RES# If no external Reset is needed: Leave open • BOOT0 leave open (1) • XL-IN/SLCK If no external slow clock is provided: Leave open • XL-OUT If no external XTAL is connected: Leave open • UART-RTS#, UART-CTS# If neither flow control nor UICP is used: Leave open (1) • IUR-OUT#, IUR-IN# If UICP is not used: leave open • TESTMODE# Leave open (1) • unused GPIOs Leave open • SWDIO, SWCLK Leave open. Only needed for debug purposes. Please note, to keep compatibility with future feature enhancements, unused signals shall not be connected directly to VSUP or GND. Leave open. (1) Signals must be accessible during the homologation process, refer to 3.10 Test Mode Enable.
BlueMod+S/AI www.stollmann.de Page 26 of 52 5 Electrical Characteristics 5.1 Absolute Maximum Ratings Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “Electrical Requirements” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Item Symbol Absolute Maximum Ratings Unit Supply voltage VSUP -0,3 to +3,6 V Voltage on any pin VPin -0,3 to VSUP+0,3 V Injected current into any GPIO pin Max. per package IINJ IINJ_package 40 100 mA mA Table 7: Absolute Maximum Ratings 5.2 Electrical Requirements VSUP = 3,3V, Tamb = 25°C if nothing else stated Item Condition Limit Unit Min Typ Max Frequency Range 2400 2483.5 MHz Load impedance Measured with network analyzer in the frequency range at antenna pin 50 Ohm Output return loss Receive Mode to 50Ω load Transmit Mode to 50Ω load -10 -10 dB Table 8: Electrical Requirements 5.3 Operating Conditions Tamb = 25°C Item Condition Limit Unit Min Typ Max Supply voltage VSUP normal mode (DC/DC not enabled) 1,8 3,0 3,6 VDC Table 9: DC Operating Conditions
BlueMod+S/AI www.stollmann.de Page 27 of 52 5.4 Environmental Requirements Item Symbol Absolute Maximum Ratings Unit Storage temperature range Tstg -40 to +85 °C Operating temperature range Top -25 to +75 °C Table 10: Environmental Requirements 5.5 DC Parameter All Module I/O pins are connected directly to the Nordic nRF51822 chip without signal conditioning except for some pull-up/pull-down resistors (as indicated). Therefore the electrical characteristics are as documented in the Nordic nRF51822 data sheet [2]. 5.5.1 General Purpose I/O (GPIO) Tamb = 25°C Symbol Item Condition Limit Unit Min Typ Max VIL Low-Level Input Voltage VSUP = 1,8 to 3,6V VSS - VSUP*0,3 V VIH High-Level Input Voltage VSUP = 1,8 to 3,6V VSUP*0,7 - VSUP V VOL Low-Level Output Voltage IOL = 0,5mA (1) IOL = 5,0mA (2), (3) VSS VSS - 0,3 0,3 V VOH High-Level Output Voltage IOH = -0,5mA (1) IOH = -5,0mA (2), (3) VSUP-0,3 VSUP-0,3 - VSUP VSUP V IOL Low -Level Output Current VOL ≤ 0,3V - - -0,5mA (1) -5,0mA (2), (3) mA IOH High-Level Output Current VSUP-0,3V ≤ VOH ≤ VSUP - - 0,5mA (1) 5,0mA (2), (3) mA RPU pull-up resistor 11 13 16 kΩ RPD pull-down resistor 11 13 16 kΩ Ilc I/O pad leakage current -3,5 0,01 +3,5 nA Cl Input Capacitance 2,5 pF (1) drive = std (2) drive = hi (3) maximal number of pins (per package) with high drive is 3 Table 11: DC Characteristics, Digital IO
BlueMod+S/AI www.stollmann.de Page 28 of 52 5.5.2 EXT-RES# Input EXT-RES# has a Schmitt-Trigger characteristic and an internal pull-up resistor. Tamb = 25°C Symbol Item Condition Limit Unit Min Typ Max VIL Low-Level Threshold VSUP = 1,8 to 3,6V 0,34*VSUP V VIH High-Level Threshold VSUP = 1,8 to 3,6V 0,62*VSUP V VHYST Hysteresis VSUP = 3,0V 800 mV RPU pull-up resistor 11 13 16 kΩ Cl Input Capacitance 2,5 pF Table 12: DC Characteristics, EXT-RES# 5.5.3 External Slow Clock SLCK The following table is applicable if an external slow clock signal is fed into XL-IN/SLCK. This may be a square wave, a clipped sine wave, a sine wave or a rail-to-rail digital signal. Frequency must be 32,768kHz +/-250ppm (refer to 3.9). DC offset is not an issue as long as the input voltage is between VSS and VSUP at all times. Firmware will detect presence of external slow clock signal at startup; signal has to stay active as long as the BlueMod+S is powered. Tamb = 25°C Symbol Item Condition Limit Unit Min Typ Max VSLCKL Low-Level Input Voltage VSUP = 1,8 to 3,6V 0,0 - VSUP-VSLCK V VSLCKH High-Level Input Voltage VSUP = 1,8 to 3,6V VSUP-VSLCK - VSUP V VSLCK (1) Amplitude (peak_peak) VSUP = 1,8 to 3,6V 0,2 - VSUP V Cl Input Capacitance 4 pF (1) input voltage required between VSS and VSUP at all times Table 13: DC Characteristics, SLCK
BlueMod+S/AI www.stollmann.de Page 29 of 52 5.6 Power Consumption and Power Down Modes 5.6.1 Terminal I/O Configuration The following values are typical power consumption values in the different states. VSUP = 3,0V, Tamb = 25°C, all GPIOs open, UART inputs at VSUP or GND, SLCK: 32,768 kHz Condition Note Slow clock SLCK Current Consumption Unit IAvg Advertising Off, UICP not active or serial interface up internal ext. sig. ext. XTAL tbd. tbd. 1,1 mA Advertising Off, UICP active, serial interface down (1) internal ext. sig. ext. XTAL tbd. tbd. 4 µA Device in reset (2) 0,625 mA (1) IUR-IN# and UART-CTS# signals connected to CMOS high level (2) same current consumption w. internal or external slow clock Table 14: Supply Current Sleep Modes, no Radio Activity
BlueMod+S/AI www.stollmann.de Page 30 of 52 The following table shows the average power consumption of BlueMod+S operating in the peripheral device role. VSUP = 3,0V, Tamb = 25°C, all GPIO lines left open, SLCK: 32,768 kHz Condition Note Slow clock SLCK Current Consumption Unit Tx power (dBm) (8) max (+4) min (-30) IAvg IAvg Standby, Advertising on 3 channels, advertising interval: 1,28s, UICP not active or serial interface up (5) internal (7) ext. sig. ext. XTAL tbd. tbd. 1,2 tbd. tbd. 1,2 mA Standby, Advertising on 3 channels, advertising interval: 1,28s, UICP active and serial interface down (1) internal (7) ext. sig. ext. XTAL tbd. tbd. 28 tbd. tbd. 9,5 µA Connected, connection interval: 7,5 ms, no data traffic (2,3) (6) 2,2 1,95 mA Connected, connection interval: 7,5 ms, data traffic 115 kbit/s at the serial port, central to peripheral (2) (6) 5,2 4,7 mA Connected, connection interval: 7,5 ms, data traffic 115 kbit/s at the serial port, peripheral to central (2) (6) 3,4 3,2 mA Connected, connection interval: 37,5ms, no data traffic (2,4) internal (7) ext. sig. ext. XTAL tbd. tbd. 1,4 tbd. tbd. 1,4 mA Connected, connection interval: 37,5ms, data traffic 115 kbit/s at the serial port, peripheral to central (2,4) (6) 2,0 1,9 mA (1) UART-CTS#, IUR-IN#, UART-RXD driven to CMOS high level, all UART output lines left open (2) connection parameters are setup by the central device when connection is established (3) no data to be transmitted, central device sends an empty packet (80 bit) then peripheral device answers (empty packet: 80 bit) (4) these are a typical connection parameters used by an iPhone, iPad or iPad mini device in the central device role (5) UART-inputs connected to GND or VSUP; UART output lines left open (6) same current consumption w. internal or external slow clock (7) RC oscillator internal to nRF51822, periodically trimmed by S-device (8) Tx power as set by AT command Table 15: Supply Current BLE Terminal I/O Profile, Peripheral Device Role
BlueMod+S/AI www.stollmann.de Page 31 of 52 5.7 RF Performance 5.7.1 BLE Receiver VSUP = 1,8V to 3,6V, Tamb = +20°C Measured conducted according to BT specification RF-PHY.TS/4.0.1 Receiver Frequ /GHz Min Typ Max BT Spec Unit Sensitivity at 30,8% PER 2,402 -88,5 -70 ≤ -70 dBm 2,440 -88,5 -70 2,480 -88,5 -70 Reported PER during PER report integrity test 2,426 50 50 65,4 50 < PER < 65,4 % Maximum received signal at 30,8% PER -10 0 ≥ -10 dBm Continuous power required to block Bluetooth reception at -67dBm with 0,1% BER 0,030 - 2,000 -30 tbd. -30 dBm 2,000 - 2,400 -35 tbd. -35 2,500 - 3,000 -35 tbd. -35 3,000 - 12,75 -30 tbd. -30 C/I co-channel 10 21 ≤21 dB Adjacent channel Selectivity C/I F = F0 + 1 MHz 1 15 ≤15 dB F = F0 - 1 MHz 1 15 ≤15 dB F = F0 + 2 MHz -25 -17 ≤-17 dB F = F0 - 2 MHz -25 -15 ≤-15 dB F = F0 + 3 MHz -51 -27 ≤-27 dB F = F0 - 5 MHz -51 -27 ≤-27 dB F = Fimage -30 -9 ≤-9 dB Maximum level of intermodulation interferers -50 -36 ≥-50 dBm VSUP = 1,8V to 3,6V, Tamb = -25°C Measured conducted according to BT specification RF-PHY.TS/4.0.1 Receiver Frequ /GHz Min Typ Max BT Spec Unit Sensitivity at 30,8% PER 2,402 -88,5 -70 ≤ - 70 dBm 2,440 -88,5 -70 2,480 -88,5 -70 Reported PER during PER report integrity test 2,426 50 n/a 65,4 50 < PER < 65,4 % Maximum received signal at 30,8% PER -10 n/a ≥ -10 dBm VSUP = 1,8V to 3,6V, Tamb = +75°C Measured conducted according to BT specification RF-PHY.TS/4.0.1 Receiver Frequ /GHz Min Typ Max BT Spec Unit Sensitivity at 30,8% PER 2,402 -88,5 -70 ≤ . 70 dBm 2,440 -88,5 -70 2,480 -88,5 -70 Reported PER during PER report integrity test 2,426 50 n/a 65,4 50 < PER < 65,4 % Maximum received signal at 30,8% PER -10 n/a ≥ -10 dBm Table 16: RF Performance BLE Receiver
BlueMod+S/AI www.stollmann.de Page 32 of 52 5.7.2 BLE Transmitter VSUP = 1,8V to 3,6V, Tamb = +20°C Measured conducted according to BT specification RF-PHY.TS/4.0.1 Transmitter Frequ /GHz Min Typ Max BT Spec Unit RF Transmit Power 2,402 -20 2,6 10 -20 to +10 dBm 2,440 -20 3,0 10 2,480 -20 2,8 10 ACP F = F0 ± 2MHz -42 ≤ -30 dBm F = F0 ± 3MHz -50 ≤ -30 F = F0 ± > 3MHz <-55 ≤ -30 ∆f1avg maximum modulation 225 246 275 225 < f1avg < 275 kHz ∆f2max minimum modulation (test threshold 185 kHz) 99,9 100 ≥ 99,9 % ∆f2avg / ∆f1avg 0,8 0,91 ≥ 0,8 Frequency Offset -150 ±20 +150 ± 150 kHz Carrier drift rate 9 20 ≤ 20 kHz/ 50µs Carrier drift 16 50 ≤ 50 kHz
BlueMod+S/AI www.stollmann.de Page 33 of 52 VSUP = 1,8V to 3,6V, Tamb = -25°C Measured conducted according to BT specification RF-PHY.TS/4.0.1 Transmitter Frequ /GHz Min Typ Max BT Spec Unit RF transmit Power 2,402 -20 3,0 10 -20 to +10 dBm 2,440 -20 3,5 10 2,480 -20 3,1 10 ACP F = F0 ± 2MHz -37 ≤ -30 dBm F = F0 ± 3MHz -46 ≤ -30 F = F0 ± > 3MHz <-51 ≤ -30 Frequency Offset -150 ±35 +150 ± 150 kHz Carrier drift rate 10 20 ≤ 20 kHz/ 50µs Carrier drift 25 50 ≤ 50 kHz VSUP = 1,8V to 3,6V, Tamb = +75°C Measured conducted according to BT specification RF-PHY.TS/4.0.1 Transmitter Frequ /GHz Min Typ Max BT Spec Unit RF transmit Power 2,402 -20 1,5 10 -20 to +10 dBm 2,440 -20 1,9 10 2,480 -20 1,7 10 ACP F = F0 ± 2MHz -42 -20 ≤ -30 dBm F = F0 ± 3MHz -50 -40 ≤ -30 F = F0 ± > 3MHz <-53 -30 ≤ -30 Frequency Offset -150 ±35 +150 ± 150 kHz Carrier drift rate 10 20 ≤ 20 kHz/ 50µs Carrier drift 20 50 ≤ 50 kHz Table 17: RF Performance BLE Transmitter
BlueMod+S/AI www.stollmann.de Page 34 of 52 5.7.3 Antenna-Gain and Radiation Pattern If BlueMod+S/AI is integrated into an end product while the recommendations depicted in 6.4 Placement Recommendation are maintained, the following typical antenna radiation patterns can be expected. Radiation Pattern will depend on the end products PCB size, masses in the antenna environment, housing material and geometrics. tbd. Figure 11: Typical Antenna Radiation Pattern at 2402MHz tbd. Figure 12: Typical Antenna Radiation Pattern at 2441MHz tbd. Figure 13: Typical Antenna Radiation Pattern at 2480MHz 5.8 Power-Up Time The time until the BlueMod+S is able to accept link requests or serial data depends on the firmware version. In the TIO firmware version tbd. the module is command ready after at least tbd. s. Bluetooth links are accepted tbd. s after reset. Note: For further information refer to the document BlueMod+S_Startup_Timing
BlueMod+S/AI www.stollmann.de Page 35 of 52 6 Mechanical Characteristics 6.1 Dimensions 17,0+0,2-0,0FCC ID RFRMSstollmannBlueMod+S2,510,0+0,2-0,00,1+0,1-0,10,1+0,1-0,1Verbleibende Stege nach Nutzentrennung/remaining break tabs after separation2,6 Figure 14: BlueMod+S/AI Dimensions 6.2 Recommended Land Pattern F1E1D1C1B1A1 A2 A3 A4 A5 A6 A7 A8F2E2D2C2B2F3E3D3C3B3F4E4D4C4B4F5E5D5C5B5F6E6D6C6B6F7E7D7C7B7F8E8D8C8B81,251,257x1,5=10,55x1,5=7,50,917,010,0 Figure 15: BlueMod+S Land Pattern Note: All dimensions are in mm.
BlueMod+S/AI www.stollmann.de Page 36 of 52 6.3 Re-flow Temperature-Time Profile The data here is given only for guidance on solder and has to be adapted to your process and other re-flow parameters for example the used solder paste. The paste manufacturer provides a re-flow profile recommendation for his product. Figure 16: Soldering Temperature-Time Profile (For Reflow Soldering) Preheat Main Heat Peak tsmax tLmax tpmax Temperature Time Temperature Time Temperature Time [°C] [sec] [°C] [sec] [°C] [sec] 150 100 217 90 260 10 230 50 Average ramp-up rate [°C / sec] 3 Average ramp-down rate [°C / sec] 6 Max. Time 25°C to Peak Temperature [min.] 8 Opposite side re-flow is prohibited due to module weight. Devices will withstand the specified profile and will withstand up to 1 re-flows to a maximum temperature of 260°C. The reflow soldering profile may only be applied if the BlueMod+S resides on the PCB side looking up. Heat above the solder eutectic point while the BlueMod+S is mounted facing down may damage the module permanently.
BlueMod+S/AI www.stollmann.de Page 37 of 52 6.4 Placement Recommendation To achieve best radio performance for BlueMod+S/AI, it is recommended to use the placement shown in Figure 17. This is a “corner placement” meaning the BlueMod+S/AI is placed such that the antenna comes close to the corner of the application PCB (red area). So, the yellow area is outside the PCB and regards to the housing, too (refer to 6.5). Please note that for best possible performance the antenna should be directed away from the application PCB as shown in Figure 17. max.0,5 4,51010max.0,51015no bare copper (exept solder pads for module)no copper and components on any layerno components on any layerprovide solid ground plane(s) as large as possible around17do not place any conductive parts in this area202040areaApplic. PCB Figure 17: BlueMod+S/AI Placement Recommendation 6.5 Housing Guidelines The individual case must be checked to decide whether a specific housing is suitable for the use of the internal antenna. A plastic housing must at least fulfill the following requirements: • Non-conductive material, non-RF-blocking plastics • No metallic coating • ABS is suggested 6.6 Antenna Issues BlueMod+S/AI comprises a ceramic antenna which as a component is soldered to the circuit board. This solution is functional for a BlueMod+S/AI integrated into a plastic housing. The performance of the antenna has to be checked within the final integration environment. Adjacent PCBs, components, cables, housings etc. could otherwise influence the radiation pattern or be influenced by the radio wave energy. It must be ensured that the antenna is not co-located or operating in conjunction with any other antennas, transmitters, cables or connectors.
BlueMod+S/AI www.stollmann.de Page 38 of 52 6.7 Safety Guidelines tbd.
BlueMod+S/AI www.stollmann.de Page 39 of 52 7 Application Diagram The following schematic shows a typical application of BlueMod+S. The module is connected to some MCU running the application layer. MCU and BlueMod+S use the same 3,3V power supply. The serial interface has RTS/CTS flow control and UICP support in this example. The optional hangup feature to close down the link is provided. As an option to save power, there is an external slow clock oscillator. All other module pins may be left unconnected. Host MCUVDDGND+3V3GPIO (o)In this example BlueMod+S is connected to an MCU supporting UICP, RTS/CTS flow control and Hangup.The slow clock oscillator (32,768kHz ) is optional; it helps to save power during power down states.1kBlueMod+S/AIE-6,F-6 VSUPB-1 EXT-RES#UART-RXDUART-TXDUART-CTS#UART-RTS#GPIO[4]/HangupTXD (o)RXD (i)RTS# (o)CTS# (i)GPIO (o)XL-IN/SLCK32,768kHz squareor clipped sine+3V3The oscillator is optional. Leave A-6 openif the oscillator is not present.You can also connect an 32,768kHz XTALand two capacitors at A-6 and A-5.B-4D-4A-6all GND pads (14) must be connected.Blocking capacitors not shown.pushpull or ODpushpullA-5 XL-OUTD-2F-4F-3D-7IUR-IN#D-5IUR-OUT#GPIO/DSR# (o)GPIO/DTR# (i) Figure 18: Typical Application Schematics
BlueMod+S/AI www.stollmann.de Page 40 of 52 8 Approvals/Certifications The BlueMod+S/AI has been tested to comply to the appropriate EU, FCC and IC directives. CE testing is intended for end products only. Therefore CE testing is not mandatory for a Bluetooth Module sold to OEM’s. However Stollmann E+V GmbH provides CE tested Modules for customers in order to ease CE compliance assessment of end products and to minimize test effort. 8.1 Declaration of Conformity CE The BlueMod+S/AI fully complies with the essential requirements of the following EU directives: • R&TTE 1999/5/EC • RoHS 2011/65/EC The actual version of EU Declaration of Conformity (EU DoC) can be downloaded from the qualification section on the product page via the following link: http://www.stollmann.de/en/support/downloads/bluetooth-adapter/bluemod-s.html The above link may expire, because a new version of the EU DoC is available. Please look up the EU DoC from the Stollmann web site directly then. 8.2 FCC Compliance The BlueMod+S/AI has been tested to fulfill the FCC requirements. Test reports are available on request. Grants of the Full Modular Approval will be shown below.
BlueMod+S/AI www.stollmann.de Page 41 of 52 8.2.1 FCC Grant tbd
BlueMod+S/AI www.stollmann.de Page 42 of 52 8.2.2 FCC Statement This device complies with 47 CFR Part 2 and Part 15 of the FCC Rules and with. Operation is subject to the following two conditions: (1) this device my not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. 8.2.3 FCC Caution Warning: Changes or modifications made to this equipment not expressly approved by Stollmann Entwicklungs- und Vertriebs- GmbH may void the FCC authorization to operate this equipment. 8.2.4 FCC Warning This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 8.2.5 FCC RF-exposure Statement The BlueMod+S/AI complies with the FCC/IC RF radiation exposure limits set forth for an uncontrolled environment. The output power is < 10mW EIRP and therefore according to “FCC KDB 447498 D01 General RF Exposure Guidance v05” Appendix A, table “SAR Exclusion Threshold”, excluded from SAR testing for test separation distances ≥ 5mm and if it is not used in co-locations with other antennas. If the product implementing the BlueMod+S/AI has other antennas in co-location or separation distances < 5mm an FCC TCB should be asked for a Class II Permissive Change.
BlueMod+S/AI www.stollmann.de Page 43 of 52 8.2.6 FCC Labeling Requirements for the End Product Any End Product integrating the BlueMod+S/AI must be labeled with at least the following information: This device contains transmitter with FCC ID: RFRMS IC: 4957A-MS
BlueMod+S/AI www.stollmann.de Page 44 of 52 8.3 IC Compliance The BlueMod+S/AI has been tested to fulfill the IC requirements. Test reports RSS-210 of Industry Canada are available on request. Grants of the Full Modular Approval will be shown below. 8.3.1 IC Grant tbd 8.3.2 IC Statement (i) Ce dispositif doit être installé et exploité dans une enceinte entièrement fermée afin de prévenir les rayonnements RF qui pourraient autrement perturber la navigation aéronautique. L’installation doit être effectuée par des installateurs qualifiés, en pleine conformité avec les instructions du fabricant. (ii) Ce dispositif ne peut être exploité qu'en régime de non-brouillage et de non-protection, c’est-à-dire que l’utilisateur doit accepter que des radars de haute puissance de la même bande de fréquences puissent brouiller ce dispositif ou même l’endommager. D’autre part, les capteurs de niveau à propos desquels il est démontré qu’ils perturbent une exploitation autorisée par licence de fonctionnement principal doivent être enlevés aux frais de leur utilisateur. This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. NOTICE: This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada. 8.3.3 IC Caution Warning: Changes or modifications made to this equipment not expressly approved by Stollmann Entwicklungs- und Vertriebs-GmbH may void the IC authorization to operate this equipment. Cet appareil est conforme avec Industrie Canada RSS exemptes de licence standard(s). Son fonctionnement est soumis aux deux conditions suivantes: (1) cet appareil ne peut pas provoquer d'interférences, et (2) cet appareil doit accepter toute interférence, y compris celles pouvant causer un mauvais fonctionnement de l'appareil.
BlueMod+S/AI www.stollmann.de Page 45 of 52 8.3.4 IC RF-exposure Statement This equipment is portable device. The output power of this device is less than 20mW. The SAR test is not required. 8.3.5 IC Labeling Requirements for the End Product Any end product integrating the BlueMod+S/AI must be labeled with at least the following information: This device contains transmitter with FCC ID: RFRMS IC-ID: 4957A-MS 8.3.6 IC Label Information BlueMod+S The BlueMod+S shows no IC-ID on the product label, because there is no space available. IC allows on request to state the IC-ID in the product manual. This product has been granted to do so. Model: BlueMod+S The IC-ID is: 4957A-MS 8.4 Bluetooth Qualification The BlueMod+S is a qualified design according to the Bluetooth Qualification Program Reference Document (PRD) V2.1. The Qualified Design ID (QDID) is: tbd For further information about marking requirements of your product attention should be paid the Bluetooth Product Marking Guide at https://www.bluetooth.org/Download/Marking_Guide_20060601.pdf According to the Bluetooth SIG rules (Qualification Program Reference Document – PRD V2.1) you are required to perform the mandatory End Product Listing (EPL) for your product. For further information see www.Bluetooth.org or contact Stollmann.
BlueMod+S/AI www.stollmann.de Page 46 of 52 8.5 RoHS Declaration The actual version of RoHS Supplier Declaration according to the EU Directive 2011/65/EC can be downloaded from the qualification section on product web site via the following link: http://www.stollmann.de/en/support/downloads/bluetooth-adapter/bluemod-s.html
BlueMod+S/AI www.stollmann.de Page 47 of 52 9 Related Documents [1] nordic: nRF51_Series_Reference_Manual_v2.1.pdf 2013-11-20 (nRF51822_Reference) [2] nordic: nRF51822_PS v2.0.pdf (nRF51822_Datasheet) [3] Stollmann: UICP_UART_Interface_Control_Protocol_r01.pdf [4] Stollmann: AppNote_B0601_Antenna_Design_V1_0.pdf [5] Stollmann: BlueMod+S AT Command Reference [6] Stollmann: BlueMod+S_Startup_Timing.pdf [7] Stollmann: BlueMod+S_Testmode_Reference [8] Bluetooth SIG: Core_v4.1.pdf
BlueMod+S/AI www.stollmann.de Page 48 of 52 10 Packing The BlueMod+S modules are packed using carrier tape. Abzugrichtung von der Rolle/pull off direction from reel25 Leertaschen Vorspann pro Verpackungseinheit/25 empty pockets as leader per packing unit15 Leertaschen Nachspann pro Verpackungseinheit/15 empty pockets as trailer per packing unitFCC ID RFRMSstollmannBlueMod+SstollmannBlueMod+SFCC ID RFRMSstollmannBlueMod+SFCC ID RFRMSstollmannBlueMod+SFCC ID RFRMS
BlueMod+S/AI www.stollmann.de Page 49 of 52 10.1 Tape The dimensions of the tape are shown in the drawing below (values in mm): 2,0+0,1-0,110,9+0,1-0,118,3+0,1-0,1R 0,51,75+0,10-0,1024,0+0,3-0,310x4,0=40,0+0,2-0,21,5+0,1-0,012,011,5+0,1-0,10,33,0 10.2 Reel tbd
BlueMod+S/AI www.stollmann.de Page 50 of 52 10.3 Package Label Package box, dry shield bag and reel are each marked with the following label: Stollmann E+V GmbHnamep/nfirmwarefw p/ntracequantitydesigned and manufactured in Germanyxxxxxxxxxxxxxaaaaa-aab/cddddd-ddmwwyyq Field Description name Name of product p/n Product number firmware Firmware version fw p/n Product number of firmware trace [Manufacturer m (optional)]Date (CalendarWeekYear) wwyy quantity Number of contained modules If the label on the package box is different to the label described please contact Stollmann for detailed information.
BlueMod+S/AI www.stollmann.de Page 51 of 52 11 Ordering Information 11.1 Part Numbers BlueMod+S is available in the following variants: Name Antenna Order No. MOQ / units Comments BlueMod+S/AI internal 53275-xx 50 BlueEva+S Internal 53276-xx 1 Evaluation Kits Other variants on request, please contact Stollmann sales department. 11.2 Standard Packing Unit The standard packing unit is 400 pieces Tape and Reel 11.3 Evaluation Kit The kit BlueEva+S is available to evaluate functionality and start your firmware implementation. 12 History Version Release Date By Change description r01 20.02.2014 MW/JW First preliminary release
BlueMod+S/AI www.stollmann.de Page 52 of 52 Stollmann Entwicklungs- und Vertriebs-GmbH Mendelssohnstraße 15 D 22761 Hamburg Germany Phone: +49 (0)40 890 88-0 Fax: +49 (0)40 890 88-444 E-mail: info@stollmann.de www.stollmann.de

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