AAO1202054AFM Transmitter

Filename G_04_00897 Bleed: per die Job # 120-2054_r1.indd Technician: Inks Trim: Live: Date: jrodri2-42150 120-2054_r1.eps Print Scale: Links @ Bleed: Job # Trim: Live: Date: Print Scale: Bleed: Job # Trim: Live: Date: Print Scale: Bleed: Job # Trim: Live: Date: 9/27/04 11:07 AM Print Scale: Process Cyan Process Magenta Process Yellow Process Black DIE 100 (0 in, 0 in, 0 in, 0 in) (22 in, 15.5 in) operation. Addendum 12-2054 Wireless FM Transmitter Connect to your audio source’s LINE/MICROPHONE jack. Low frequencies: 88.1, 88.3, 88.5, 88.7. High frequencies: 107.1, 107.3, 107.5, 107.7 For best performance, select a frequency that is not occupied by a strong local FM station. High-Low Band frequency switch Replace batteries when the amber indicator dims or goes out. Plug the power port adapter into your vehicle’s power port. For best reception, position your FM transmitter near to your receiver’s antenna. 5V DC jack

High Performance FM transmitter T-707 L S i gnal 5V dc Regualtor 5V regulator - C LA 5V DC 100mA 13.8 V DC fro m CLA ad aptor Choke Coi l Pr e- emp &LPF Pr e- emp & LPF Audi o Sig n a l IN L Signal R Signal MP X R Signal Program counter 7.6MHz XTAL Channels se lec t ion OSC RF AMP Vcc Ant e nna Po r t 5V DC-DC converto r Powe r switch Vcc CLA 5V 3V BAT LED Os c ill at or Frequ enc y(MHz) 88. 1,8 8 .3, 88. 5,88. 7 107. 1,10 7.3, 107. 5,10 7.7

INTERTEK TESTING SERVICE Report No.: 0605474 FCC ID: AAO1202054A Equipment Photographs Model : 12-2054 (External) INTERTEK TESTING SERVICE Report No.: 0605474 FCC ID: AAO1202054A Equipment Photographs Model : 12-2054 (External) INTERTEK TESTING SERVICE Report No.: 0605474 FCC ID: AAO1202054A Equipment Photographs Model : 12-2054 (External)

Made in ChinaFCC ID: AAO1202054 12-2054 1.5V x 2 AAA OR EQUIVALENT

INTERTEK TESTING SERVICE Report No.: 0605474 FCC ID: AAO1202054A Equipment Photographs Model : 12-2054 (Internal) INTERTEK TESTING SERVICE Report No.: 0605474 FCC ID: AAO1202054A Equipment Photographs Model : 12-2054 (Internal) INTERTEK TESTING SERVICE Report No.: 0605474 FCC ID: AAO1202054A Equipment Photographs Model : 12-2054 (Internal) INTERTEK TESTING SERVICE Report No.: 0605474 FCC ID: AAO1202054A Equipment Photographs Model : 12-2054 (Internal) INTERTEK TESTING SERVICE Report No.: 0605474 FCC ID: AAO1202054A Equipment Photographs Model : 12-2054 (Internal)

12-2054 Operational description: This product is a FM transmitter. It obtains an audio signal from the portable audio sources (e.g. MP3 players) and then transmits it via one of the FM channels: 88.1, 88.3, 88.5, 88.7, 107.1, 107.3, 107.5, 107.7 MHz. The audio signal is firstly enhanced by pre-emphasis and low-pass filtering processes to ensure low distortion at the receiver's end. Then it is mixed with oscillated frequency, modulated into FM format and further amplified. Lastly, it is transmitted out via the audio input cord which acts as an antenna in the unit. All the FM processes are done by a single chip IC in the unit. A mono or stereo FM radio can be used to listen to the selected FM channel. The channel selection in the unit is done by firstly selecting HI(107Mhz)/LOW(88MHz) bands and then selecting the desired channel (1 to 4). 2 AAA batteries and CLA can be used to power up this product and an amber LED is used to indicate the ON/OFF status of the product.

BH1417F Multimedia ICs Wireless Audio Link IC BH1417F The BH1417F is a FM stereo transmitter IC that transmits simple configuration. The IC consists of a stereo modulator for generating stereo composite signals and a FM transmitter for broadcasting a FM signal on the air. The stereo modulator generates a composite signal which consists of the MAIN, SUB, and pilot signal from a 38kHz oscillator. The FM transmitter radiates FM wave on the air by modulating the carrier signal with a composite signal. Frequency is set for North America. ! !! !Applications Wireless speakers, Personal computer(sound board), Game machine, CD changer, Car TV, Car navigation ! !! !Features 1) It is possible to improve the timbre because it has the pre-emphasis circuit, limiter circuit, and the low-pass filter circuit. 2) Built-in pilot-tone system FM stereo modulator circuit. 3) The transmission frequency is stable because it has a PLL system FM transmitter circuit. 4) PLL controls data input in parallel (4bits, 14ch for North America). ! !! !Absolute maximum ratings (Ta = 25°C, In measurement circuit.) Supply voltage Power dissipation Storage temperature Date input voltage Phase comparator output voltage ∗ Derating : 4.5mW/°C for operation above Ta=25°C. ParameterSymbolLimitsUnit V CC Pd Tstg V V V mW °C +7.0 −0.3~V CC+0.3 −0.3~V CC+0.3 −55~+125 Conditions V IN-D VOUT-P 450 Pin8,12 Pin15,16,17,18 Pin7 ∗ ! !! !Recommended operating conditions (Ta = 25°C) Audio input level ParameterSymbol Min. Unit V CCV V V °C 4.0 −40 − Conditions V IN-A fIN-A Topr τ PRE fTX VIH VIL 20 − 87.7 106.7 0.8V CC GND Max. 6.0 +85 −10 15k 155 88.9 107.9 V CC 0.2VCC Typ. − − − − − − − − dBV Hz μs MHz Pin8,12 Pin1,22 Pin1,22 Pin2,21 Pin9,11 Pin15,16,17,18 Pin15,16,17,18 Operating supply voltage Operating temperature Audio input frequency band Pre-emphasis time constant set up range Transmission frequency(200kHz step) Control terminal "H" level input voltage Control terminal "L" level input voltage BH1417F Multimedia ICs ! !! ! Block diagram MPX RF OSC RF GND PLL V CC GND V CC LPF LPF Program counter Phase detector + 4 1 2 1 50 1 19 1 2 V CC + + − − Pre−emphasis and Limiter 1234567891011 2221201918171615141312 L − ch INPUT PRE-EMPHASIS TIME CONSTANTLPF TIME CONSTANTPILOT SIGNAL ADJUSTD 3 D 2 D 1 D 0 X'tal OSCILLATORX'tal OSCILLATORPLL V CC R − ch INPUT PRE − EMPHASIS TIME CONSTANT LPF TIME CONSTANT FILTER COMPOSITE SIGNAL OUTPUT GND PLL PHASE DETECTOR OUTPUT V CC RF OSCILLATOR RF GND RF OUTPUT BH1417F Multimedia ICs ! !! ! Pin descriptions Pin No. 1 Pin descriptions R−ch audio source input terminal L−ch audio source input terminal It cuts DC with the capacitor and it inputs R-ch audio signal. It cuts DC with the capacitor and it inputs L-ch audio signal. DC (V) 1 2 V CC 1 2 V CC 1 2 V CC 1 2 V CC 1 2 V CC 1 2 V CC 1 2 V CC 22 2,21 Pre-emphasis time constant terminal It connects a capacitor for the time constant of pre-emphasis. τ=22.7kΩ×C Equivalent circuit 8 6 8 6 8 6 4 22 1 or 21 2 or 20 3 or 43k 1k 100k 50k 50k 50p 22.7k 3,20LPF time constant terminal This is 15kHz LPF. It connects a 150pF capacitor. 100k 100k − + 4 Filter terminal It is a ripple filter for the reference voltage of the audio part. 5 6 7 8 Composite signal output terminal It connects to the FM modulator. 8 5 6 8 7 6 GND GND − − PLL phase detector output terminal It connects to the PLL LPF circuit. − Power supply terminal V CC BH1417F Multimedia ICs Pin No. 9 10 11 Pin descriptions RF oscillator terminal DC (V) 4 7 V CC Equivalent circuit 8 9 10 12 13,14 15 16 17 18 19 12 1817 16 15 6 RF GND GND − − − − This is the base terminal of the colpitts oscillator. It connects time constant of the oscillation. 25k 40k 30p 2p 18p 12 1413 6 8 11 10 RF transmission output terminal It connects to the antenna through BPF. VCC −1.9 PLL power supply terminal V CC X'tal oscillator terminal It connects a 7.6MHz crystal oscillator. 4k 1M Parallel data set up terminal D0 Parallel data set up terminal D1 Parallel data set up terminal D2 Parallel data set up terminal D3 Pilot signal adjust terminal 8 19 6 or or or 1 2 V CC 5k BH1417F Multimedia ICs ! !! !Electrical characteristics (Unless otherwise noted, Ta = 25°C, V CC = 5.0V Signal source : f IN = 400Hz) ParameterSymbol I Q142028mA Min.Typ.Max.UnitConditions Fig.1 Fig.2 Fig.2 Fig.3 Fig.3 Fig.3 Fig.3 Fig.3 Fig.6 Fig.7 Fig.7 Fig.8 Fig.8 Fig.9 Fig.9 Fig.4 Fig.5 Quiescent current Channel separationSep2540 − − − −− − − − − − −− − dB dB dB dBV dB dBμV Total harmonic distortion "off" level leak current1 "off" level leak current2 "H" level input current "H" level output voltage "L" level output voltage "L" level input current Channel balance Input output gain Pilot modulation rate Sub carrier rejection ratio Pre-emphasis time constant Limiter input level LPF cut off frequency Transmission output level THD C.B Gv M P SCR τ PRE VIN(LIM) fC(LPF) VTX IIH IIL VOH VOL IOFF1 IOFF2 −2 −30−20 −10−13 −2 −16 −1.0 −100 12 12 40 96 V CC− VCC− 1.0 0.1 0 0 15 50 15 99 0.15 0.15 0.3 +2 +2 18 60 18 102 1.0 100 1.0 % % μs kHz μA μA V V nA nA V IN=−20dBV V IN=−20dBV V IN=−20dBV V IN=−20dBV V IN=−20dBV V IN=−20dBV V IN=−20dBV,L+R L→R,R→L L+R L+R L+R L+R L+R Pin5 V O=−3dB Pin2,21 Open f TX=107.9MHz Pin15,16,17,18 VIN=5V Pin15,16,17,18 V IN=0V Pin7 I OUT=−1.0mA Pin7 I OUT=1.0mA Pin7 V OUT=5V Pin7 V OUT=GND Output level at 1dB gain compression Measurement circuit BH1417F Multimedia ICs ! !! !Measurement circuits Quiescent current MPX RF OSC RF GND PLL V CC GND V CC LPF LPF Program counter Phase detector + 4 1 2 1 50 1 19 1 2 V CC + + − − Pre-emphasis and Limiter 1234567891011 2221201918171615141312 150p 2200p 150p 2200p D 2 D 3 D 1 D 0 27p27p 10 μ 0.01 μ 0.01μ 100μ A 7.6MHz +5V I Q Fig.1 BH1417F Multimedia ICs Channel separation Channel balance MPX RF OSC RF GND PLL V CC GND V CC LPF LPF Program counter Phase detector + 4 1 2 1 50 1 19 1 2 V CC + + − − Pre-emphasis and Limiter 1234567891011 2221201918171615141312 150p 2200p 150p 2200p D 3 D 2 D 1 D 0 27p 27p 10 μ 0.01 μ 1…

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• The test results reported in this test report shall refer only to the sample actually tested and shall not refer or be deemed to refer to bulk from which such a sample may be said to have been obtained. • This report shall not be reproduced except in full without prior authorization from Intertek Testing Services Hong Kong Limited • For Terms And Conditions of the services, it can be provided upon request. • The evaluation data of the report will be kept for 3 years from the date of issuance. Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. Tel: (852) 2173 8888 Fax: (852) 2785 5487 Website: www.hk.intertek-etlsemko.com RadioShack Corporation Application For Certification (FCC ID: AAO1202054A) Transmitter 0605474 TC/el April 21, 2006 INTERTEK TESTING SERVICES FCC ID: AAO1202054A i LIST OF EXHIBITS INTRODUCTION EXHIBIT 1: General Description EXHIBIT 2: System Test Configuration EXHIBIT 3: Emission Results EXHIBIT 4: Equipment Photographs EXHIBIT 5: Product Labelling EXHIBIT 6: Technical Specifications EXHIBIT 7: Instruction Manual EXHIBIT 8: Miscellaneous Information INTERTEK TESTING SERVICES FCC ID: AAO1202054A ii MEASUREMENT / TECHNICAL REPORT RadioShack Corporation − MODEL: 12-2054 FCC ID: AAO1202054A April 21, 2006 This report concerns (check one:) Original Grant X Class II Change Equipment Type: Low Power Transmitter (example: computer, printer, modem, etc.) Deferred grant requested per 47 CFR 0.457(d)(1)(ii)? Yes No X If yes, defer until: date Company Name agrees to notify the Commission by: date of the intended date of announcement of the product so that the grant can be issued on that date. Transition Rules Request per 15.37? Yes No X If no, assumed Part 15, Subpart C for intentional radiator − the new 47 CFR [04-05-05 Edition] provision. Report prepared by: Alfred Lo Intertek Testing Services 2/F., Garment Center, 576 Castle Peak Road, Kowloon, Hong Kong. Phone: 852-2173-8545 Fax: 852-2371-0914 INTERTEK TESTING SERVICES FCC ID: AAO1202054A iii Table of Contents 1.0 General Description......................................................................................... 2 1.1 Product Description................................................................................... 2 1.2 Related Submittal(s) Grants ...................................................................... 2 1.3 Test Methodology...................................................................................... 3 1.4 Test Facility ............................................................................................... 3 2.0 System Test Configuration ............................................................................. 5 2.1 Justification ............................................................................................... 5 2.2 EUT Exercising Software .......................................................................... 5 2.3 Special Accessories .................................................................................. 5 2.4 Equipment Modification............................................................................. 6 2.5 Measurement Uncertainty ......................................................................... 6 2.6 Support Equipment List and Description ................................................... 6 3.0 Emission Results ............................................................................................. 8 3.1 Field Strength Calculation ......................................................................... 9 3.2 Radiated Emission Configuration Photograph ........................................ 11 3.3 Radiated Emission Data.......................................................................... 12 3.4 Conducted Emission Configuration Photograph...................................... 14 3.5 Conducted Emission Data....................................................................... 14 4.0 Equipment Photographs ............................................................................... 15 5.0 Product Labelling .......................................................................................... 17 6.0 Technical Specifications ............................................................................... 19 7.0 Instruction Manual ......................................................................................... 21 8.0 Miscellaneous Information ........................................................................... 23 8.1 Measured Bandwidth.............................................................................. 24 8.2 Discussion of Pulse Desensitization........................................................ 25 8.3 Calculation of Average Factor ................................................................. 26 8.4 Emissions Test Procedures .................................................................... 27 INTERTEK TESTING SERVICES FCC ID: AAO1202054A iv List of attached file Exhibit Type File Description Filename Test Report Test Report report.pdf Operation Description Technical Description descri.pdf Test Setup Photo Radiated Emission radiated photos.pdf Test Report Bandwidth Plot bw.pdf External Photo External Photo external photos.pdf Internal Photo Internal Photo internal photos.pdf Block Diagram Block Diagram block.pdf Schematics Circuit Diagram circuit.pdf ID Label / Location Label Artwork and Location label.pdf User Manual User Manual manual.pdf INTERTEK TESTING SERVICES FCC ID: AAO1202054A 1 EXHIBIT 1 GENERAL DESCRIPTION INTERTEK TESTING SERVICES FCC ID: AAO1202054A 2 1.0 General Description 1.1 Product Description The Equipment Under Test (EUT) is a wireless FM transmitter which can be operated in eight different channels (88.1, 88.3, 88.5, 88.7, 107.1, 107.3, 107.5 and 107.7MHz). The main function of the EUT is used to transmit the modulated signal that can be obtained from audio sources. It is powered by two new “AAA” size batteries…

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Bandwidth Plot Report: 0605474 FCC ID: AAO1202054A 1 Input: 1Vrms 15kHz audio signal modulation

INTERTEK TESTING SERVICE Report No: 0605474 Configuration Photographs Worst-Case Radiated Emissions (Front View) Model : 12-2054 Fig.1 FCC ID: AAO1202054A INTERTEK TESTING SERVICE Report No: 0605474 Configuration Photographs Worst-Case Radiated Emissions (Back View) Model : 12-2054 Fig.2 FCC ID: AAO1202054A