PVDCF2028FFM Transmitter

MCU MW1415 Display Button PLL frequency synthesizer WM2822 osc RF AMP Stereo modulator WM1418 RL Audio in (LCD) CF2028F BLOCK DIAGRAM

Top View of TX Bottom View of TX Front View of TX Back View of TX Left View of TX Right View of TX

Internal View-1 Internal View-2 Internal View-3

Theory of Operation for CF2028F FM Transmitter 1. MCU(MW1415) control LCD to display frequency and PLL chip (WM 2822) to change the frequency. At the same MCU will detect if there is input in the button. 2. PLL(WM2822) IC will control the frequency of oscillation source which is made up of triode Q1 and transfiguration diode VD1 and lock the required frequency automatically. Signal will be amplified by triode Q2 and sent out through antenna. 3. Stereo audio signal is mixed through WM1418 and then will be mixed with 19kHz frequency-guide signal. The mixed signal is modulated to carrier signal through VD1 transfiguration diode.

Title Number Revision Size B Date: 25-Mar-2006 Sheet of File: D:\ 公 \PCB \FMT - 300\FM300.dd b Drawn By: A1 1 A2 2 A3 3 GND 4 VCC 5 WP 6 SCL 7 SDA 8 U3 AT24C02 PD1 1 Xin 2 CE 3 CK 4 DA 5 VSS 6 FMin 7 VDD 8 U1 MW2822 COM3 16 COM2 17 COM1 18 COM0 19 SEG0 20 SEG1 21 SEG2 22 SEG3 23 SEG4 24 SEG5 25 SEG6 26 SEG7 27 SEG8 28 SEG9 29 SEG10 30 VSS 1 VDD 2 REST 3 NC 4 CK 5 DA 6 CE 7 Mup 8 UP 9 DOWN 10 Mdown 11 SDA 12 SAV-DEL 13 NC 14 OSCI 15 U6 MW1415 1 2 3 4 5 6 7 89 10 11 12 13 14 15 16 U5 MW1418 LED BULE JK1PHONEJACK STEREO R24 1M R251K R22 47K R3100K R1447R R28 2.2K R72.2K R15 2.2K R19 2.2K R1391K R16 51K R18 51K R1147K R10470K R9100R R1100K R210K R42.2K C230.1uF C360.1uF C370.1uF C810uF C11 0.1uF C710uF C4 1nF C28 no C260.1uF C3210pF C300.1uF C34 1nF C27 1nF C224.7nF C21220pF C420.1uF C10 1nF C1530pFC1430pF C1310pF C910pF C8330pF C210nF C380.1uF + C3910uF\6.3V + C20 10uF C29 100uF\10V F1500mA L4220uH L3220uH L20.4x2x8T L1390nF Q12SC2714 Q22SC2714 123456789 10111312 U2 LCD SW3 S\D SW5 Mdown SW2 DOWN SW4 UP SW1 Mup R1247 C31no R172.2K R202.2K C25 1nF C331nF + C40 10uF C351nF C1910pF Vout 1 GND 2 Vin 3 U778L05 X138KHz VD1BB178 C6no R2610R C30.1uF + C5 10uF\6.3V R61.5K RL FMin FMin R23100R 1/2W C410.47uF Vout 2 GND 1 Vin 1 U4RC1117-33 L R DC12V GND R12100R Mars 3.0 CF2028F TP1 TP2 C1no C1620pF C24 0.1uF DC12V-30mA TP2 TP3 5V 3.2V

LONGWAY (SHENZHEN) CERTIFICATION SERVICE CO., LTD REPORT NO: LW-SZ0603001E FCC ID: PVDCF2028F DATE: 03/29/2006 Page 1 of 27 Rev. 00 ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT INTENTIONAL RADIATOR CERTIFICATION TO FCC PART 15 SUBPART C REQUIREMENT For FM TRANSMITTER MODEL No.: CF2028F Brand Name: CRAIG, MusicBaby FCC ID: PVDCF2028F REPORT NO: LW-SZ0603001E ISSUE DATE: March 29, 2006 Prepared for SHEN ZHEN JWL ELECTRONIC CO., LTD ROOM B-OP, 27/F WINDOW TO MODERNIZATION BUILDING HUA QIANG ROAD NORTH, FUTIAN DISTRICT SHENZHEN, GUANGDONG, CHINA Prepared by LONGWAY(SHENZHEN) CERTIFICATION SERVICE CO., LTD d.b.a. LONGWAY(SHENZHEN) CERTIFICATION SERVICE CO., LTD NO. 1501, B BUILDING, EAST GARDEN, SHENNAN ROAD #12038, NANSHAN DISTRICT, SHENZHEN, GUANGDONG, CHINA TEL: 86-755-86174774 FAX: 86-755-86174774 LONGWAY (SHENZHEN) CERTIFICATION SERVICE CO., LTD REPORT NO: LW-SZ0603001E FCC ID: PVDCF2028F DATE: 03/29/2006 Page 2 Rev. 00 VERIFICATION OF COMPLIANCE Applicant: Shen Zhen JWL Electronic Co., Ltd. Room B-OP, 27/F Window to modernization Building Hua Qiang Road North, Futian District Shenzhen, Guangdong, China Manufacturer: Shen Zhen JWL Electronic Co., Ltd. Room B-OP, 27/F Window to modernization Building Hua Qiang Road North, Futian District Shenzhen, Guangdong, China Product Description: FM Transmitter Brand Name: CRAIG, MusicBaby Model Number: CF2028F, FMT-300 Serial Number: N/A File Number: LW-SZ0603001E Date of Test: March 22, 2006 ~ March 29, 2006 We hereby certify that: The EUT was assessed by LONGWAY (SHENZHEN) CERTIFICATION SERVICE CO., LTD. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.4 (2003) and the energy emitted by the sample EUT tested as described in this report is in compliance with conducted and radiated emission limits of FCC Rules Part 15.239. The test results of this report relate only to the tested sample identified in this report. Approved By King Chen / Q.A. Manager LONGWAY(SHENZHEN) CERTIFICATION SERVICE CO., LTD LONGWAY (SHENZHEN) CERTIFICATION SERVICE CO., LTD REPORT NO: LW-SZ0603001E FCC ID: PVDCF2028F DATE: 03/29/2006 Page 3 Rev. 00 Ta b l e o f C o n t e n t s 1. GENERAL INFORMATION................................................................................................ 4 1.1 P RODUCT D ESCRIPTION ........................................................................................................................ 4 1.2 RELATED SUBMITTAL(S) / GRANT (S)................................................................................................... 4 1.3 T EST M ETHODOLOGY ............................................................................................................................ 4 1.4 T EST F ACILITY ...................................................................................................................................... 4 2. System Test Configuration .................................................................................................... 5 2.1 EUT C ONFIGURATION ........................................................................................................................... 5 2.2 EUT E XERCISE ...................................................................................................................................... 5 2.3 T EST P ROCEDURE .................................................................................................................................. 5 2.4 L IMITATION ........................................................................................................................................... 5 2.5 C ONFIGURATION OF T ESTED S YSTEM ................................................................................................... 7 3. Summary Of Test Results ...................................................................................................... 9 4. Description of test modes.......................................................................................................9 5. Conducted Emissions Test ................................................................................................... 10 5.1 M EASUREMENT P ROCEDURE : ............................................................................................................. 10 5.2 T EST SET-UP (B LOCK D IAGRAM OF C ONFIGURATION ) ..................................................................... 10 5.3 M EASUREMENT E QUIPMENT U SED : .................................................................................................... 10 5.4 M EASUREMENT R ESULT : .................................................................................................................... 10 5.5 C ONDUCTED M EASUREMENT P HOTOS :............................................................................................... 10 6. RADIATED EMISSION TEST......................................................................................11 6.1 M EASUREMENT P ROCEDURE ............................................................................................................... 11 6.2 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ..................................................................... 12 6.3 M EASUREMENT E QUIPMENT U SED : .................................................................................................... 13 6.4 F IELD S TRENGTH C ALCULATION ........................................................................................................ 13 6.5 MEASUREMENT RESULT...................................................................................................................... 14 7. OCCUPIED BANDWIDTH ........................................................................17 7.1 M EASUREMENT PROCEDURE ......................................................................................17 7.2 T EST SET - UP ( BLOCK DIAGRAM OF CONFIGURATION ).…

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Setup Photo