UJDFM88FM Transmitter for iPod

A N T R F O S C I L L A T O R P L L C I R C U I T A U D I O ( F R O M I P O D L I N E O U T ) N J M 2 0 3 5 S T E R E O M U L T I P L E X E R 1 9 K H Z P I L O T G E N E R A T O R M C U A U T O P O W E R O F F C O N T R O L R E G U L A T O R F R O M I P O D 3 . 3 V L C D D I S P L A Y L A S T T U N E D M E M O R Y V + 2 . 5 V V + 2 . 5 V V + 2 . 5 V V + V + V + PDF created with pdfFactory trial version www.pdffactory.com

Christoph Schmidt Von: Generic Office of Engineering Technology [[email protected]] Gesendet: Mittwoch, 13. Dezember 2006 17:24 An: [email protected] Betreff: Response to Inquiry to FCC (Tracking Number 895192) Seite 1 von 1 14.12.2006 Inquiry: TCB request for guidance. TCB Ref.: intended FCC ID: UJDFM88 b) FCC Rule part: 15.239 c) FM Transmitter for operation inside a car, according to permit but ask list 1). Equipment Class: DXX d) The device has been tested for compliance with all provisions of Rule part 15.239, using the test procedures described in ANSI C63.4 - 2003 as appropriate. The device was tested in an anechoic chamber and was not tested inside a car. ---Reply from Customer on 12/12/2006--- Follow up inquiry: TC#: 787031 FCC ID: UJDFM88 Q & A and Test Report: please refer to attachments. Form 731 and all exhibits have been uploaded for FCC review. ---Reply from Customer on 12/12/2006--- We received the following information from our client / test lab: Dear Mr. Schmidt, The FM transmitter, UJDFM88, has been additionally tested / verified and it does work in a typical car. Best regards, Wang Wei Response: Go ahead and grant. No need for further replies. Please submit a copy of this inquiry into the filing. Thanks. Do not reply to this message. Please select the Reply to an Inquiry Response link from the OET Inquiry System to add any additional information pertaining to this inquiry.

MODEL: FM-03(US) PRODUCT NAME: FM Transmitter For ipod FCC ID: UJDFM88 POWER: DC3.3V OPERATING FREQUENCY: 88.1-107.9MHz MANUFACTURER: Micro Electronics Ltd. SER. No.: Made in China FCC MARKING/LABEL FOR PART15 30mm 15mm

Operation theory of FM-03(US) FM-03(US) is a low power stereo FM (frequency modulator) transmitter for iPod with 30pin iPod dock connector, that works across the FM broadcast band, allow iPod users to broadcast audio wirelessly from their iPod to FM radio. The transmission frequency is set from 88.1 to 107.9MHz. Modulation type: FM This product mainly consists by 8 portions : 1) The whole operation is controlled by the MCU TM87P08. 2) Stereo multiplexer and 19KHz pilot generator-- The stereo audio signal from iPod is multiplexed by NJM2035M, and mixed with a 19KHz pilot. 3) RF oscillator and amplifier circuit is formed by Q1 and Q2, this RF carrier will be modulated by the MPX signal from NJM2035M, after amplified by Q2, the modulated radio signal will be sent to space by the antenna. 4) TR3001 is a PLL IC, it cooperates with MCU, Q1 and Q2 to form a complete PLL circuit, and MCU to control the RF radiated frequency 5) AME8800 IC is a low dropout voltage regulator, it draws voltage supply 3.3V directly from iPod and provides a regulated voltage output to MCU, U4 NJM2903 IC and U5 HC9L3C46. 6) U4 NJM2903 is an auto power OFF control circuit, when it detects an audio signal input from iPod, it will send a high level output to MCU (pin61), which will trigger MCU to create a high level output to turn on the voltage supply switch formed by Q3 and Q4, and supply voltage to U2 2035 MPX IC, TR3001 PLL IC and RF oscillator (Q1, Q2) simultaneously. When there is no audio signal input from iPod for about 2 minutes, the output of NJM2903 will turn low and shut off the supply to MPX, PLL IC and RF oscillator. This will save the power from iPod 7) Frequency is displayed by the LCD which is controlled and driven by the MCU. 8) HT93LC46 IC is a CMOS RAM, it is controlled by the MCU and keep the last tuned frequency in memory.`

12345678 A B C D 87654321 D C B A Title NumberRevisionSize A3 Date:25-Aug-2006Sheet of File:F:\电子b\FM03c\FM03C-SCH(FCC).DDBDrawn By: L 1 N C 2 B y p a s s 3 G N D 4 B y P a s s 5 X T A L 6 C A P 7 P i l o t O u t 8 M P X O u t 9 V C C 1 0 T r i m 1 1 T r i m 1 2 N C 1 3 R 1 4 U2 NJM2035M C16 10UF C27 10PF C26 10UF C21 100NF C18 10UF C3 0.22UF C15 10UF C14 1NF + C38 10uF C39 100pF X1 4MHZ C2 15PF C1 15PF C17 0.1uF ANT1 ANTENNA R24 24K R1 10K R3 12K R30 47K R31 1K R13 510 R20 100K R12 33K R9 47K R231KR21 1.8K R10 24K R11 1K R28 1.8K C20 1NF C22 10UF C19 1000PF A060428 C25 1NF FM-TRANSMITTER FM03C-FCC Q3 3906 12 DS1 LED2 D3 4148 D4 4148 Xin 1 Xout 2 Frin 3 Frout 4 Cfin 5 Cfout 6 Gnd 7 Reset 8 INT 9 Vdd1 10 Vdd2 11 Vpp 12 Vdd3 13 Cup1 14 Cup2 15 COM1 16 C O M 2 1 7 C O M 3 1 8 C O M 4 1 9 C O M 5 / D C 5 / O D 5 2 0 C O M 6 / D C 6 / O D 6 2 1 C O M 7 / D C 7 / O D 7 2 2 C O M 8 / D C 8 / O D 8 2 3 D C 9 / O D 9 2 4 S E G 0 1 ( K 1 ) 2 5 S E G 0 2 ( K 2 ) 2 6 S E G 0 3 ( K 3 ) 2 7 S E G 0 4 ( K 4 ) 2 8 S E G 0 5 ( K 5 ) 2 9 S E G 0 6 ( K 6 ) 3 0 S E G 0 7 ( K 7 ) 3 1 S E G 0 8 ( K 8 ) 3 2 S E G 0 9 ( K 9 ) 3 3 SEG10(K10) 34 SEG11(K11) 35 SEG12(K12) 36 SEG13(K13) 37 SEG14(K14) 38 SEG15(K15) 39 SEG16(K16) 40 SEG17 41 SEG18 42 SEG19 43 SEG20 44 SEG21 45 SEG22 46 SEG23 47 SEG24/IOA1/CX 48 SEG25/IOA2/RR 49 S E G 2 6 / I O A 3 / R T 5 0 S E G 2 7 / I O A 4 / R H 5 1 S E G 2 8 / I O B 1 5 2 S E G 2 9 / I O B 2 5 3 D C 3 0 / O D 3 0 / I O B 3 / B Z B 5 4 S E G 3 1 / I O B 4 / B Z 5 5 I O C 1 / K 1 1 5 6 I O C 2 / K 1 2 5 7 I O C 3 / K 1 3 5 8 I O C 4 / K 1 4 5 9 I O D 1 6 0 I O D 2 6 1 I O D 3 6 2 I O D 4 6 3 S E G 4 0 6 4 S E G 4 1 6 5 T E S T 6 6 TM1 K D1 BB178 NC1 1 X1 2 X2 3 CE 4 DA 5 CK 6 NC2 7 NC3 8 NC4 9 NC5 10 VSS 11 FMIN 12 VDD 13 DO 14 U1 TR3001 S2 DOWN S1 UP 12 Y2 38KHZ VDD VRF C4 2.2NF C6 30PF C7 18PF C9 0.1UF C5 100PF C8 47PF C10 1NF C11 30PF C13 100NF C28 15PF C23 15PF C32 100NF C24 10UF C31 100NF C30 100NF C12 10NF C29 100NF L1 ￠=0.4 D=1.5MM 9.5T L2 56NH Q1 9018 Q2 9018 Q4 2N3904 R5 47K R4 30K R26 100K R19 10 R17 10K R18 1K R16 1K R25 10K R6 620 R7 100K R2 8.2K VRF VRF CE DATA CLOCK COM1 1 COM2 2 COM3 3 SEG01 4 SEG02 5 SEG03 6 SEG04 7 SEG05 8 SEG06 9 SEG07 10 SEG08 11 SEG09 12 SEG10 13 SEG11 14 SEG12 15 SEG13 16 LCD1 R36 Res Adj2 1K 1 2 Y1 32.768KHZ VCC SD LCD CHECK VCC CLOCK CE DATA VCC VRF R33 1M R22 100k R27 1M R35 4.7K R29 100K R32 2.2K R34 10K C41 10NF C37 10UF VCC SD C40 10UF/10V-T VCC VDD R37 1K Q8 2N3904 VCC U4 2903V U4 2903V C33 0.1UF C34 100PF C35 100PF 1 2 3 4 5 67 8 8 4 R38 3k 1 G N D 2 O U T 3 I N U3 AEM8800-2.7V + C42 33UF R39 47K 1 cs 2 SK 3 DI 4 DO 5 GND 6 ORG 7 DC 8 VCC U5 ATMEL93C46 VCC S2 S1 S1=S2=0/USA S1=0 S2=1/JAPAN S2=0 S1=1/Australia VCC C7 18PF=USAC7 40PF=JAPAN L1 9.5T=USAL1 10.5T=JAPAN L2 FBM-11-160808-700 R40 300=USA R40 50=JAPAN 1 GND 2 GND 3 TPA+ 4 D+ 5 TPA- 6 D- 7 TPB+ 8 USBV 9 TPB- 10 11 PWR 12 PWR 13 3.3V 14 15 USBG 16 DGND 17 RESERVED 18 TX 19 RX 20 DELECT 21 Y 22 C 23 C.VIDEO 24 REMOTE 25 L IN 26 R IN 27 L OUT 28 R OUT 29 COM 30 DGND 30PIN CAP 1 GND 2 D+ 3 D- 4 5V USB JACK MIN-4P PDF created with pdfFactory trial version www.pdffactory.com

Page 1 of 37 FCC ID: UJDFM88 ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20061902 FCC CERTIFICATION On Behalf of Micro Electronics Ltd. FM Transmitter for ipod Model No.: FM-03(US) FCC ID: UJDFM88 Prepared for : Micro Electronics Ltd. Address : 7/F., Enterprise Square Three, 39 Wang Chiu Road, Kowloon Bay, Kowloon, Hong Kong Prepared by : ACCURATE TECHNOLOGY CO. LTD Address : F1, Bldg. A, Changyuan New Material Port, Keyuan Rd. Science & Industry Park, Nanshan, Shenzhen, Guangdong P.R. China Tel: (0755) 26503290 Fax: (0755) 26503396 Report Number : ATE20061902 Date of Test : September 22, 2006 Date of Report : September 27, 2006 Page 2 of 37 FCC ID: UJDFM88 ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20061902 TABLE OF CONTENTS Description Page Test Report Certification 1. GENERAL INFORMATION .......................................................................................................... 4 1.1. Description of Device (EUT)....................................................................................................................4 1.2. Description of Test Facility ......................................................................................................................4 1.3. Measurement Uncertainty.........................................................................................................................4 2. MEASURING DEVICE AND TEST EQUIPMENT ..................................................................... 5 3. RADIATED EMISSION FOR FCC PART 15 SECTION 15.239(C)........................................... 6 3.1. Block Diagram of Test Setup....................................................................................................................6 3.2. The Emission Limit for section 15.239(c) ................................................................................................6 3.3. Configuration of EUT on Measurement ...................................................................................................7 3.4. Operating Condition of EUT ....................................................................................................................7 3.5. Test Procedure ..........................................................................................................................................7 3.6. The Field Strength of Radiation Emission Measurement Results ............................................................9 4. FUNDAMENTAL RADIATED EMISSION FOR FCC PART 15 SECTION 15.239(B) ........ 11 4.1. Block Diagram of Test Setup..................................................................................................................11 4.2. The Emission Limit For Section 15.239(b) ............................................................................................11 4.3. EUT Configuration on Measurement .....................................................................................................12 4.4. Operating Condition of EUT ..................................................................................................................12 4.5. Test Procedure ........................................................................................................................................12 4.6. The Emission Measurement Result ........................................................................................................13 5. OCCUPIED BANDWIDTH FOR FCC PART 15 SECTION 15.239(A) ................................... 14 5.1. The Requirement For Section 15.239(a).................................................................................................14 5.2. EUT Configuration on Measurement .....................................................................................................14 5.3. Operating Condition of EUT ..................................................................................................................14 5.4. Test Procedure ........................................................................................................................................14 5.5. Test Result ..............................................................................................................................................15 6. TUNING RANGE ........................................................................................................................... 16 6.1. The Requirement For Section 15.239 .....................................................................................................16 6.2. EUT Configuration on Measurement .....................................................................................................16 6.3. Operating Condition of EUT ..................................................................................................................16 6.4. Test Procedure ........................................................................................................................................16 6.5. Test Result ..............................................................................................................................................17 7. RADIATED EMISSION FOR FCC PART 15 SECTION 15.109(A)......................................... 18 7.1. Block Diagram of Test Setup..................................................................................................................18 7.2. The Emission Limit for section 15.109(a) ..............................................................................................18 7.3. Configuration of EUT on Measurement .................................................................................................19 7.4. Operating Condition of EUT ..................................................................................................................19 7.5. Test Procedure ........................................................................................................................................19 7…

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