Wistron NeWeb SWA19 Wireless Module User Manual SWA19 use guide v0 8 OK

Wistron NeWeb Corporation Wireless Module SWA19 use guide v0 8 OK

User manual

AVNERA PROPRIETARY & CONFIDENTIAL | PROVIDED UNDER NDA General Description The SWA19 module represents a new level of system integration offering customers fast time to market with a digital wireless receiver ideal for wireless headphone applications. The SWA19 Receiver module is optimized for low-cost, high-quality and ease-of-use. The module incorporates Avnera’s proprietary wireless audio protocol, designed from the ground up specifically for audio. It features low fixed latency, uncompressed CD quality stereo audio, superior interference immunity and industry leading coexistence with WiFi – even at close proximity to a WiFi device. The SWA19 Receiver module integrates all features necessary to complete a wireless Headphone device, including AV6202 Wireless Audio Chip, diversity chip antennas, flash memory, and all passive components. The module measures just 30 x 30 x 3.5 mm and is castellated for direct surface mount to a PCB. The SWA19 receiver module may be paired with the SWA13 Transmitter device. The module can be certified to worldwide standards. Applications  Premium Wireless Headphone Ordering Options SWA19 Features  I2S Digital Output interface with >94dB end-to-end digital audio path  Analog Headphone Driver  Analog microphone input  Direct connection to Li-Ion battery  Integrated battery charger  2.4 GHz ISM band, continuous dynamic channel selection  Auto-search/synch and dynamic channel selection  Low and fixed latency  24 pin castellated module  Over-the-air firmware update capability  Customizable firmware for simple, low-cost, wireless headphone implementations  General purpose over-the-air (OTA) serial interface:  11 kbps, bi-directional, full duplex SWA19 Module Datasheet Headphone / Headset Wireless Receiver System, based on the AV6202 IC
SWA19 Module Datasheet Rev 0.8 CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 2 AVNERA PROPRIETARY & CONFIDENTIAL 1 Table of Contents .............................................................................................................................................. 1General Description ............................................................................................................ 1Applications ........................................................................................................................ 1Ordering Options ................................................................................................................ 1Features ............................................................................................................................... 11Table of Contents ......................................................................................................... 22Lists of Figures and Tables ......................................................................................... 33SWA19 Functional ........................................................................................................ 43.1SWA19 Module Connections ............................................................................................................ 54SWA19 Pin Def. ............................................................................................................. 65SWA19 Mechanical Dimensions(unit :mm) ................................................................ 7 .............................................................................................................................................. 7 .............................................................................................................................................. 7 .............................................................................................................................................. 8 .............................................................................................................................................. 86Electrical Specifications .............................................................................................. 96.1Absolute Maximum Ratings ............................................................................................................. 96.2Recommended Operating Range ..................................................................................................... 96.3Electrical Characteristics ............................................................................................................... 106.4I2S Communication Interface Timing ............................................................................................. 116.5I2C Master/Slave Communication Interface Timing (S_SCL, S_SDA) ....................................... 127FCC and Industry Canada certification information ................................................ 138Ordering Information ................................................................................................. 13
SWA19 Module Datasheet Rev 0.8 CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 3 AVNERA PROPRIETARY & CONFIDENTIAL 2 Lists of Figures and Tables Table 1: SWA19 Connector Information ............................................................................................................. 6Table 2; SWA19 RF Transceiver Characteristics .............................................................................................. 10Table 3; SWA19 Audio Characteristics ............................................................................................................. 10Table 4; SWA19 Audio Latency Characteristics ............................................................................................... 10Table 5; SWA19 Current Characteristics .......................................................................................................... 10Table 6; SWA19 I2S Timing .............................................................................................................................. 11Table 7; Characteristics of the S_SDA and S_SCL I/Os .................................................................................. 12Table 8: SWA19 Module Ordering Information ................................................................................................. 13 
SWA19 Module Datasheet Rev 0.8 CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 4 AVNERA PROPRIETARY & CONFIDENTIAL 3 SWA19 Functional The SWA19 module is a digital output receiver module. There is an I2S port for digital audio output that can be configured to be a master or a slave. In addition, MCLK can be generated from the module, or input to the module as required by the system application. The highly integrated nature of the AV6202 transceiver IC results in few external components being required for the SWA19 module design. 2 chip antennas offer diversity, and the simple RF path consists only of the antennas, associated tuning components, An RF switch and a balun connected to the AV6202 IC. A 16MHz crystal generates the AV6202 system clock signal used as the basis for all RF and digital audio signals. In addition, a 2Mb flash memory stores the factory based firmware, as well as firmware upgrade images and configuration parameters. The module firmware enables upgrades to be performed by the USB interface or over-the-air. The module can be controlled from an external host device via the SPI interface. The I2C master port allows the module to control other system audio devices such as a DAC / amplifier system without having to add another MCU to the product design. 15 GPIOs are supported with the SWA19 module including I2C, SPI and I2S signals. This large number of GPIOs can be leveraged to implement low cost wireless audio products as outlined below. The stereo 44.4 kSps over the air sample rate optimizes audio quality and WiFi co-existence performance. Typical Headphone Implementation An example of a simple wireless headphone that incorporates SWA19 as the wireless receiver and uses MCU for user interface and Codec control is shown in Fig. 2.
SWA19 Module Datasheet Rev 0.8 CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 5 AVNERA PROPRIETARY & CONFIDENTIAL 3.1 SWA19 Module Connections Signal Type Description VDC IN This module pin may be connected to VDC or VIN – depending on the customer requirement (to be determined before schematic finalization). If the battery charger function is to be used, VDC must be connected to 5V DC. If a direct connection to a battery or 3.3V supply is intended then VDC will connect to the VIN pin of AV6202 VIN Direct battery connection or regulated supply, 3.3V or 3.6Vv Vbat Battery charger output TS Battery Temperature sensor input PWR Power button connection to the module. This feature can be used to wake the module from a shutdown state. Pull low through an open collector device or mechanical switch to wake the module. Reset Active low reset input. Reset the device by driving this pin low from an open collector/drain device such that it can pull to ground for the active reset state but, when released, must be allowed to go to a high impedance state. This pin should not be driven high. I2S Out Port The I2S output port can be configured as a master or slave. Consequently BCLK and LRCK can be either inputs or outputs. In addition, MCLK can be generated by the module on pin 16, or used as an input. Typically, as the AV6202 IC contains a sample rate converter, MCLK is not required to be supplied to the module when it is an I2S slave. CMOS 3.3 logic levels are used for all I2S signals. SPI Slave Port The SPI slave port is used for external host communication and during module test I2C Master Port The I2C master port is used to communicate with external audio devices such as a sub-woofer amplifier. The SDA and SCL require external pull ups, 2.7 to 3.3kohm. GPIOs 3.3V CMOS logic level GPIOs available to connect to other devices, or to use as UI supporting GPIOs for LED and button support. All supported GPIOs can be configured as inputs or outputs.
SWA19 Module Datasheet Rev 0.8 CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 6 AVNERA PROPRIETARY & CONFIDENTIAL 4 SWA19 Pin Def. NoPinNameI/OAV6202PinPinDescription11NC/ANT0I/O  NCorConductiveAnt0RFOutput2GND‐  GND33ADOUT/GPIO16O/IGPIO16 6I2SstereooutorGPIO44NC/GPIO1I/OGPIO14NCorGPIO55S_SSB/GPIO2I/OGPIO23SPIslaveportorGPIO;HOSTControlinterface66S_SCLK/GPIO3I/OGPIO3 2SPIslaveportorGPIO;HOSTControlinterface77S_MOSI/GPIO4I/OGPIO4 1SPIslaveportorGPIO;HOSTControlinterface88S_MISO/GPIO5I/OGPIO556SPIslaveportorGPIO;HOSTControlinterface99M_MISO/GPIO6I/OGPIO655SPIMASTERportorGPIO1010M_MOSI/GPIO7I/OGPIO754SPIMASTERportorGPIO1111M_SCLK/GPIO8I/OGPIO853SPIMASTERportorGPIO1212M_SSB/GPIO9I/OGPIO952SPIMASTERportorGPIO1313USB_DPI/OUSBDP45USB2.0positivetransceiverI/O1414USB_DNI/OUSBDN44USB2.0negativetransceiverI/O15GND‐  GND1616MCLK/GPIO17OGPIO1751I2SMCLKorGPIO1717BCLK/GPIO12I/OGPIO1243I2SBCLKorGPIO1818WCLK/GPIO13I/OGPIO1342I2SWCLKorGPIO1919GPIO14/M_SCLI/OGPIO1441Functiondefinedbyfirmwareapplication.2020GPIO15/M_SDAI/OGPIO1540Functiondefinedbyfirmwareapplication.2121RESETNIRESETN39Active‐LOWResetinputexpectingopendrainconnection2222NC/TEMP_SENSOTS38NCORTEMP_SENS:connecttothermistorontheLi/Ionbattery2323NC/~PWRIPWR37Active‐LOWWAKE‐UPinputfromshutdownmodeexpectingopen‐drain/collectortypeswitch2424NC/VBATOVBAT34NCoroutputofthebatterycharger2525VDC_IN*aIVDC32+5V+/‐10%;onlyneededwhenUSBused*a2626VIN*aIVIN35Modulemainpowerin3.2‐4.3V*a27GND‐  GND2828NC/ANT1I/O  NCorConductiveAnt1RFOutput*a : When SWA19 not use USB/charger functionality, u only need to supply power to “26VIN” pin which is 3.2~4.3V input range, and float “25VDC_IN” pin. When SWA19 need USB function, u only need to supply power to “25VDC_IN” pin, and float “26VIN” pin . Table 1: SWA19 Connector Information
SWA19 Module Datasheet Rev 0.8 CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 7 AVNERA PROPRIETARY & CONFIDENTIAL 5 SWA19 Mechanical Dimensions(unit :mm)
SWA19 Module Datasheet Rev 0.8 CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 8 AVNERA PROPRIETARY & CONFIDENTIAL Figure 1: SWA19 Mechanical Dimensions
SWA19 Module Datasheet Rev 0.8 CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 9 AVNERA PROPRIETARY & CONFIDENTIAL 6 Electrical Specifications 6.1 Absolute Maximum Ratings Absolute Maximum Ratings (AMR) are stress ratings only. AMR corresponds to the maximum value that can be applied without leading to instantaneous or very short-term unrecoverable hard failure (destructive breakdown). Stresses beyond those listed under AMR may cause permanent damage to the device. Functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Range” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may adversely affect device reliability. Device functional operating limits and guaranteed performance specifications are given under Electrical Characteristics at the test conditions specified. CONDITION MIN MAX VDC or VIN Supply Voltage Input -0.3V 6.0V Input Voltage Range – Digital Inputs -0.3V 3.6V Operating Temperature1 -10ºC +70ºC Storage Temperature -20ºC +80ºC Static Discharge Voltage1 -10kV +10kV Notes: Note 1: ±10kV, 150pF/330ohms discharge per IEC/EN61000-4-2 6.2 Recommended Operating Range PARAMETER MIN TYP MAX UNIT +5V Supply pin voltage 4.5 5.0 5.5 V VIN Voltage range 3.2 3.6 4.3 V Ambient Temperature (TA) 0 60 ºC
SWA19 Module Datasheet Rev 0.8 CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 10 AVNERA PROPRIETARY & CONFIDENTIAL 6.3 Electrical Characteristics Test Conditions: TA=+25ºC, VDC=+5.0V Table 2; SWA19 RF Transceiver Characteristics PARAMETER CONDITIONS MIN TYP MAX UNIT RF Frequency Range 2403.35 2477.35 MHz RX Sensitivity1 -88 dBm Range (NLOS) 15 m Range (LOS) 50 m Note 1: Measured with the SWA19 PCB antenna disabled and test RF connector added. Sensitivity is defined as the onset of 0.2% BLER Clock Error Rate. Table 3; SWA19 Audio Characteristics PARAMETER CONDITIONS MIN TYP MAX UNIT Frequency Response1 Stereo full band FW build 20 20K Hz Gain Flatness2 0dB Input/Output Gain ±0.2 dB SNR I2S Input/Output 94 dB THD+N 94 dB Note 1: 16 bit audio, 44.4KSps over-the-air sample rate firmware build Note 2: 16 bit audio, 44.4KSps over-the-air sample rate firmware build – 20 KHz frequency response Table 4; SWA19 Audio Latency Characteristics PARAMETER CONDITIONS MIN TYP MAX UNIT 44.4KSps OTA Sample Latency Standard Firmware 14 ms Table 5; SWA19 Current Characteristics PARAMETER CONDITIONS MIN TYP MAX UNIT Supply Current No Audio Linked4 35 mA Searching5 55 mA No Load, 1 kHz tone, 0 dB FS 50 mA Note 4: Specification represents an average current with the I2S clocks running. Peak current is ~ 2x the average. Note 5: Searching is where the Rx module is not linked but is attempting to find a Tx module to link with. Peak current is ~ 80mA. Note 6:. After the Rx module has not been linked for > 30 seconds it will go to a duty cycling standby state reflected by this specification. Peak current is ~ 80mA.
SWA19 Module Datasheet Rev 0.8 CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 11 AVNERA PROPRIETARY & CONFIDENTIAL 6.4 I2S Communication Interface Timing Table 6; SWA19I2S Timing MIN TYP MAX UNIT NOTES VL low voltage level -0.3V 0.0V 0.4V V VH high voltage level 2.4V 3.3V 3.6V V T clock period 325.5n s 1/3.072MHz TLo clock low period 0.4T 0.6T THi clock high period 0.4T 0.6T TR rise time 50n s Note 1 TF fall time 50n s Note 1 TSu setup time 25n s THd hold time 25n s TOd output delay -25n 25n s bit clocks/word clock 64 I2S protocol is “I2S Justified” as shown below.
SWA19 Module Datasheet Rev 0.8 CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 12 AVNERA PROPRIETARY & CONFIDENTIAL Note 1: The timing specified for the rise and fall times represents the edge rates on the module itself. The rise and fall times of the I2S signals are determined by ESD/EMI mitigation components on the modules, as well as external loading, and will be higher than the specified numbers 6.5 I2C Master/Slave Communication Interface Timing (S_SCL, S_SDA) The SWA19has both I2C slave and master interfaces available with their respective pins S_SCL and S_SDA. The interfaces operate in I2C fast-mode and can receive and transmit at up to 400 kbit/s. Bytes are 8 bits long and are transferred with the most significant bit (MSB) first. Each byte has to be followed by an acknowledge bit. The SWA19will apply clock-stopping (by holding the clock line S_SCL LOW to force the master into a wait state) if necessary due to internal high-priority tasks. The slave/master interface can be used both for writing (e.g. sending commands) or reading (e.g. requesting status). The SWA19slave interface responds to the 7-bit slave address 1000000 (0x40) as shown in Figure 1 below. ELECTRICAL SPECIFICATIONS AND TIMING Table 7; Characteristics of the S_SDA and S_SCL I/Os PARAMETER SYMBOL FAST-MODE UNIT MIN. MAX. LOW level input voltage VIL 0.3 0.8 V HIGH level input voltage VIH 2.0 3.6 V LOW level output voltage (open drain or open collector) at 1 mA sink current: VOL 0 0.4 V Output fall time from VIHmin to VILmax with a bus capacitance from 10 pF to 400 pF tof 0 250 ns Pulse width of spikes which must be suppressed by the input filter tSP 0 50 ns S_SCL clock frequency fSCL 0 400 kHz LOW period of the S_SCL clock tLOW 1.3 – s HIGH period of the S_SCL clock tHIGH 0.6 – s Data hold time tHD;DAT 100 – ns Data set-up time tSU;DAT 100 – ns
SWA19 Module Datasheet Rev 0.8 CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 13 AVNERA PROPRIETARY & CONFIDENTIAL 7 FCC and Industry Canada certification information FCC : NKR-SWA19 IC : 4441A-SWA19 8 Ordering Information Table 8: SWA19 Module Ordering Information Module Part Number Option Code Description SWA19
SWA19 Module Datasheet Rev 0.8 CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 14 AVNERA PROPRIETARY & CONFIDENTIAL FCC Statement: Federal Communication Commission Interference Statement 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 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. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This device and its antenna(s) must not be co-located with any other transmitters except in accordance with FCC multi-transmitter product procedures. Refering to the multi-transmitter policy, multiple-transmitter(s) and module(s) can be operated simultaneously without C2P. IMPORTANT NOTE: This module is intended for OEM integrator. The OEM integrator is responsible for the compliance to all the rules that apply to the product into which this certified RF module is integrated. Additional testing and certification may be necessary when multiple modules are used. 20cm minimum distance has to be able to be maintained between the antenna and the users for the host this module is integrated into. Under such configuration, the FCC radiation exposure limits set forth for an population/uncontrolled environment can be satisfied. Any changes or modifications not expressly approved by the manufacturer could void the user's authority to operate this equipment.
SWA19 Module Datasheet Rev 0.8 CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 15 AVNERA PROPRIETARY & CONFIDENTIAL USERS MANUAL OF THE END PRODUCT: In the users manual of the end product, the end user has to be informed to keep at least 20cm separation with the antenna while this end product is installed and operated. The end user has to be informed that the FCC radio-frequency exposure guidelines for an uncontrolled environment can be satisfied. The end user has to also be informed that any changes or modifications not expressly approved by the manufacturer could void the user's authority to operate this equipment. If the size of the end product is smaller than 8x10cm, then additional FCC part 15.19 statement is required to be available in the users manual: This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference and (2) this device must accept any interference received, including interference that may cause undesired operation. LABEL OF THE END PRODUCT: The final end product must be labeled in a visible area with the following " Contains TX FCC ID: NKR-SWA19 ". If the size of the end product is larger than 8x10cm, then the following FCC part 15.19 statement has to also be available on the label: This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference and (2) this device must accept any interference received, including interference that may cause undesired operation.
SWA19 Module Datasheet Rev 0.8 CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 16 AVNERA PROPRIETARY & CONFIDENTIAL IC Statement: 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. Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. This device and its antenna(s) must not be co-located with any other transmitters except in accordance with IC multi-transmitter product procedures. Refering to the multi-transmitter policy, multiple-transmitter(s) and module(s) can be operated simultaneously without reassessment permissive change. Cet appareil et son antenne (s) ne doit pas être co-localisés ou fonctionnement en association avec une autre antenne ou transmetteur. IMPORTANT NOTE: IC Radiation Exposure Statement: This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. Cet équipement est conforme aux limites d'exposition aux rayonnements IC établies pour un environnement non contrôlé. Cet équipement doit être installé et utilisé avec un minimum de 20 cm de distance entre la source de rayonnement et votre corps. This module is intended for OEM integrator. The OEM integrator is still responsible for the IC compliance requirement of the end product, which integrates this module. USERS MANUAL OF THE END PRODUCT: In the users manual of the end product, the end user has to be informed to keep at least 20cm separation with the antenna while this end product is installed and operated. The end user has to be informed that the IC radio-frequency exposure guidelines for an uncontrolled environment can be satisfied. The end user has to also be informed that any changes or modifications not expressly approved by the manufacturer could void the user's authority to operate this equipment. Operation is subject to the following two conditions: (1) this device may not cause harmful interference and (2) this device must accept any interference received, including interference that may cause undesired operation. LABEL OF THE END PRODUCT: The final end product must be labeled in a visible area with the following " Contains TX IC : 4441A-SWA19 ".

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