WUO-WTX1010AUDIO FREQUENCY WIRELESS TRANSCEIVER

SONAVOX Inc. Wireless Audio Transceiver Module – WTX1010 Users Manual 1 This document is designed to provide general information for use of the Audio Wireless Transceiver Module WTX1010. EMI/EMC Compliance Guidelines FCC Compliance 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. IC Compliance This device complies with Canadian RSS-210. When integrating the WTX1010 module into your own product, you must: 1. Use only the provided chip antenna. 2. Operate the module according to the specifications listed in this data sheet. 3. Include a label clearly visible on the exterior of the product which states: “Contains FCC ID: WUO-WTX1010 / IC: 7985A-WTX1010”. 4. It is mandatory that you consult all FCC and IC documentation for use of a modular approved product, and comply with all listed guidelines and additional testing that may be required. Specifications WTX1010 functional block diagrams SPITWILEDGPIO EEPROM GPIOSPI I2S AV6600 LED MONO INADC I2S 16MHZ RFP RFN BALUN SWITCH DIVERSITY NETWORK MATCHING NETWORK MATCHING ANTENNA 2.4GHZ-2.5GHZ Figure 1 RF Performance: Outdoor range (LOS) 15m. Maximum Transmitting RF Power - 0 dBm. Frequency ISM 2.405 - 2.477 GHz. SONAVOX Inc. Wireless Audio Transceiver Module – WTX1010 Users Manual 2 Physical Dimensions Electrical Parameters Absolute maximum Supply Voltage Range 3.0 - 3.6 VDC Nominal Supply voltage – 3.3VDC Current Requirements - 400mA Operating Temperature Range - 0 to 70 °C / 32 to 158 °F PCB Material and layout considerations The PCB material for the base PCB should be FR4 glass epoxy. All supply pins should have decoupling electrolytic capacitors and ferrite beads positioned as close to the supply pins as possible. No components or traces should be located close to the antenna. Recommended minimum distance is 1sm. Firmware Sonavox provides the firmware on the module for our customers. Other features The module is RoHS compliant. The module is FCC approved (documentation available on request). The module is IC approved (documentation available on request). Module Pin-out SONAVOX Inc. Wireless Audio Transceiver Module – WTX1010 Users Manual 3 Pin Number Pin Name Pin Description 1 LINE_IN_COM2 Audio section ground 2 LINE_IN_COM Audio section ground 3 LINE_IN Audio section input 4 NOT CONNECTED 5 NOT CONNECTED 6 GND Digital section ground 7 V3.3 Main power supply (3.3V) 8 ADAT/GPIO1 I2S digital audio data output, GPIO 9 LRCLK/GPIO2 I2S digital audio frame clock input, GPIO 10 BCLK/GPIO3 I2S digital audio bit clock input, GPIO 11 LED LED drive line 12 RESET_N Active low Reset input 13 CMP Comparator input 14 S_MOSI/S_CLK/GPIO12 SPI slave serial data input, I2C slave clock, GPIO 15 S_MISO/S_SDA/GPIO13 SPI slave serial data output, I2C slave data, GPIO 16 S_SCLK/GPIO14 SPI slave clock, GPIO 17 S_SSB/GPIO15 SPI slave select, GPIO 18 UART_RX/GPIO6 UART receive, GPIO 19 UART_TX/GPIO7 UART, transmit, GPIO 20 M_MOSI/M_SDA/GPIO4 SPI master serial data output, I2C master clock, GPIO 21 M_MISO/M_SDA/GPIO6 SPI master serial data input, I2C mater data, GPIO 22 M_SCLK/GPIO8 SPI mater serial clock, GPIO 23 M_SSB/GPIO9 SPI master serial select, GPIO 24 GND Digital section ground

Rx ‘Transciever’ – Top Rx ‘Transceiver’ bottom Tx ‘Transmitter’ ‐ Top Tx ‘Transmitter’ – bottom

Filename: Avnera RF RX Module Label Rev A.cdr 1 Color: Black on White Background Material: 4 mil white vinyl, adhesive on rear Silkscreen P/N: LA0157 Revision: A Model: WTX1010 FCC I.D. WUO-WTX1010 I.C. 7985A-WTX1010 WRX1010

Filename: Avnera RF TX Module Label Rev A.cdr 1 Color: Black on White Background Material: 4 mil white vinyl, adhesive on rear Silkscreen P/N: LA0156 Revision: A Model: WTX1010 FCC I.D. WUO-WTX1010 I.C. 7985A-WTX1010 WTX1010

Rx ‘Transciever’ – Top Rx ‘Transceiver’ bottom Tx ‘Transmitter’ ‐ Top Tx ‘Transmitter’ – bottom

SONAVOX Inc. Wireless Audio Transceiver Module – WTX1010 Operations 1 Overview The WTX1010 Wireless Audio Module is the ideal solution for customers ready to make their audio products wireless. Whether you’re in the development stage or ready to mass manufacture, the WTX1010 will provide the reliable, standards-compliant, guaranteed performance you need. Product Highlights RF Performance Optimized and Guaranteed WTX1010 modules are thoroughly optimized and tested to ensure consistent and superior RF performance. Small Form Factor The WTX1010 minimal size makes it easy to integrate into existing enclosures. Electrical Characteristics Outdoor range (LOS) 15m. Transmitting Power - 0 dBm. Audio input voltage - 0.7Vrms Analog Audio THD+N - -72dB Frequency ISM 2.405 - 2.477 GHz. Power requirements Supply Voltage Range 3.0 - 3.6 VDC Nominal Supply voltage – 3.3VDC Current Consumption – 40mA Physical Specifications Operating Temperature 0 to 70 °C / 32 to 158 °F FCC Compliance 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. IC Compliance This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada. When integrating the WTX1010 module into your own product, you must: Use only the provided chip antenna. Operate the module according to the specifications listed in this data sheet. Include a label clearly visible on the exterior of the product which states: “Contains FCC ID: WUO- WTX1010 / IC: 7985A-WTX1010”. It is mandatory that you consult all FCC and IC documentation for use of a modular approved product, and comply with all listed guidelines and additional testing that may be required. SONAVOX Inc. Wireless Audio Transceiver Module – WTX1010 Operations 2 Module Connection specifications Pin description Pin Number Pin Name Pin Description 1 LINE_IN_COM2 Audio section ground 2 LINE_IN_COM Audio section ground 3 LINE_IN Audio section input 4 NOT CONNECTED 5 NOT CONNECTED 6 GND Digital section ground 7 V3.3 Main power supply (3.3V) 8 ADAT/GPIO1 I2S digital audio data output, GPIO 9 LRCLK/GPIO2 I2S digital audio frame clock input, GPIO 10 BCLK/GPIO3 I2S digital audio bit clock input, GPIO 11 LED LED drive line 12 RESET_N Active low Reset input 13 CMP Comparator input 14 S_MOSI/S_CLK/GPIO12 SPI slave serial data input, I2C slave clock, GPIO 15 S_MISO/S_SDA/GPIO13 SPI slave serial data output, I2C slave data, GPIO 16 S_SCLK/GPIO14 SPI slave clock, GPIO 17 S_SSB/GPIO15 SPI slave select, GPIO 18 UART_RX/GPIO6 UART receive, GPIO 19 UART_TX/GPIO7 UART, transmit, GPIO 20 M_MOSI/M_SDA/GPIO4 SPI master serial data output, I2C master clock, GPIO 21 M_MISO/M_SDA/GPIO6 SPI master serial data input, I2C mater data, GPIO 22 M_SCLK/GPIO8 SPI mater serial clock, GPIO 23 M_SSB/GPIO9 SPI master serial select, GPIO 24 GND Digital section ground Module Dimensions:

Global EMC Prediction of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 where:S = power density P = power input to the antenna G = power gain of the antenna in the direction of interest relative to an isotropic radi a R = distance to the center of radiation of the antenna Maximum peak output power at antenna input terminal:0.00(dBm) Maximum peak output power at antenna input terminal:1(mW) Antenna gain(typical):0(dBi) Maximum antenna gain:1(numeric) Time Averaging:100(%) Prediction distance:1(cm) Prediction frequency:2480(MHz) MPE limit for uncontrolled exposure at prediction frequency:1(mW/cm^2) Power density at prediction frequency:0.079577(mW/cm^2) Margin of compliance:-11.0(dB) This e quates to0.795774715W/m^2PASS 2 4R PG S π = This equates to0.795774715W/m 2PASS For informationThis equates to17.3207121 V/m Note: This device does not exceed the 60 / f (GHz) in mW limit as per FCC KDB 447498 2(a)(i), so it is allowable to be used in portable exposure conditions with no restrictions on host platforms 2 4R PG S π =

LAB REGISTRATION #6844A-1 FCC REGISTRATION #612361 Testing Laboratory Certificate #2555.01 Page 1 of 79 Report issue date: 10/1/2010 GEMC File #: GEMC-FCC-19825R1 © Global EMC Inc. This test report shall not be reproduced except in full, without written approval of Global EMC Inc. This report is based on GEMC Template “FCC 15 247 Rev2.” Global EMC Inc. Labs EMC & RF Test Report As per RSS 210 Issue 7:2007 & FCC Part 15 Subpart C:2010 Unlicensed Intentional Radiators on the Wireless Audio Transceiver Module – WTX1010 Scott Drysdale, Narte Certified Technician EMC Lab Manager Global EMC Inc. 180 Brodie Dr, Unit 2 Richmond Hill, ON L4B 3K8 Canada Ph: (905) 883-3919 Testing produced for See Appendix A for full customer & EUT details . Client Sonavox Audio Solution Product Wireless Audio Transceiver Module – WTX1010 Standard(s) RSS 210 Issue 7:2007 / FCC Part 15 Subpart C 15:2010 Page 2 of 79 Report issue date: 10/1/2010 GEMC File #: GEMC-19825R1 © Global EMC Inc. This test report shall not be reproduced except in full, without written approval of Global EMC Inc. Table of Contents Table of Contents ................................................................................................................... 2 Report Scope .......................................................................................................................... 3 Summary ................................................................................................................................ 4 Test Results Summary ....................................................................................................... 5 Justifications, Descriptions, or Deviations......................................................................... 6 Applicable Standards, Specifications and Methods ........................................................... 7 Sample calculation(s) ......................................................................................................... 8 Document Revision Status ................................................................................................. 8 Definitions and Acronyms ..................................................................................................... 9 Testing Facility .................................................................................................................... 10 Calibrations and Accreditations ....................................................................................... 10 Testing Environmental Conditions and Dates ................................................................. 11 Detailed Test Results Section .............................................................................................. 12 Power Line Conducted Emissions ................................................................................... 13 Radiated Emissions .......................................................................................................... 21 6dB Bandwidth of Digitally Modulated Systems ............................................................ 47 Maximum Peak Envelope Conducted Power .................................................................. 54 Spurious Conducted Emissions........................................................................................ 61 Power Spectral Density .................................................................................................... 67 Maximum Permissible Exposure ..................................................................................... 70 Appendix A – EUT Summary.............................................................................................. 72 Appendix B – EUT and Test Setup Photographs................................................................. 73 Client Sonavox Audio Solution Product Wireless Audio Transceiver Module – WTX1010 Standard(s) RSS 210 Issue 7:2007 / FCC Part 15 Subpart C 15:2010 Page 3 of 79 Report issue date: 10/1/2010 GEMC File #: GEMC-19825R1 © Global EMC Inc. This test report shall not be reproduced except in full, without written approval of Global EMC Inc. Report Scope This report addresses the EMC verification testing and test results of the Wireless Audio Transceiver Module – WTX1010, herein referred to as EUT (Equipment Under Test) performed at Global EMC Labs. The EUT was tested for compliance against the following standards: RSS 210 Issue 7:2007 / FCC Part 15 Subpart C 15:2010 Test procedures, results, justifications, and engineering considerations, if any, follow later in this report. The results contained in this report relate only to the item(s) tested. This report does not imply product endorsement by A2LA or any other accreditation agency, any government, or Global EMC Inc. Opinions/interpretations expressed in this report, if any, are outside the scope of Global EMC Inc accreditation. Any opinions expressed do not necessarily reflect the opinions of Global EMC Inc, unless otherwise stated. Client Sonavox Audio Solution Product Wireless Audio Transceiver Module – WTX1010 Standard(s) RSS 210 Issue 7:2007 / FCC Part 15 Subpart C 15:2010 Page 4 of 79 Report issue date: 10/1/2010 GEMC File #: GEMC-19825R1 © Global EMC Inc. This test report shall not be reproduced except in full, without written approval of Global EMC Inc. Summary The results contained in this report relate only to the item(s) tested. EUT FCC Certification #, FCC ID: WUO-WTX1010 EUT Industry Canada Certification #, IC: 7985A-WTX1010 EUT Passed all tests performed. Yes (see test results summary) Tests conducted by Scott Drysdale Client Sonavox Audio Solution Product Wireless Audio Transceiver Module – WTX1010 Standard(s) RSS 210 Issue 7:2007 / FCC Part 15 Subpart C 15:2010 Page 5 of 79 Report issue date: 10/1/2010 GEMC File #: GEMC-19825R1 © Global EMC Inc. This test report shall not be reproduced except in full, without written approval of Global EMC Inc. Test Results Summary Standard/Method Description C…

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Radiated Emissions – Setup Radiated Emissions – Close Up Radiated Emissions 2 – Setup Antenna Conducted – Setup Power Line Conducted Emissions Setup 1 Power Line Conducted Emissions Setup 2