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IC DESCRIPTION

IC, µPD178018AGC-596

Pin No. Pin Name I/O Description

1 FM/AM S–M I Input RDS AF signal and FM/AM S-meter signal input.

2 LEVEL IND I Voltage input for level indicator.

3 SEN 1 I Load sens detect input.

4 CD CONNECT I Connection check of CD changer.

5 CD DISP SEL O Signal output of communication timing with CD changer. H: TX, L: RX.

6 CD CLO O Synchronize clock signal output for transmission.

7 CD DI I Data signal input for reception.

8 CD DO O Data signal output for transmission.

9 CD CLI I Synchronize clock signal input for reception.

10 LCD STB/CE O LCD driver CE signal output.

11 CLK SEL O Clock selection for LCD driver.

12 LCD DI I Data signal input for LCD driver.

13 LCD DO O Data signal output for LCD driver.

14 LCD CLO O Synchronize clock signal output for LCD driver.

15 CD ACC CONT O ACC signal output for CD changer.

16 POWER MUTE O POWER MUTE signal output.

17 ST-BY MUTE O ST-BY MUTE signal output.

18 POWER CONT O POWER CONTROL signal output.

19 CONT 1 O LCD contrast: Control 1. (Not used)

20 CONT 2 O LCD contrast: Control 2. (Not used)

21 GND PORT – Ground for port.

22 VDD PORT – Power supply for port.

23 MUTE O Audio mute output.

24 BAND CONT O FM/AM power switch output. H: AM, L: FM.

25 RADIO CONT O Radio power switch output. L: Radio mode. (Not used)

26 RDS MODE O Hi output during RDS AF mode. (Not used)

27 IF REQ O Request output for IF count signal.

28 AM IF I AM IF count signal input.

29 FM IF I FM IF count signal input.

30 VDD PLL – Power supply for PLL.

31 FM OSC I Input from FM station.

32 AM OSC I Input from AM station.

33 GND PLL – Ground for PLL.

34 EO0 O Error output from charge pump. (Not used)

35 EO1 O Error output from charge pump.

36 GND – Ground.

37 LOC/DX O LOC/DX switch output during radio seek. H: LOC, L: DX.

38 SD/ST IND I

Station detect signal input during FM/AM seek. H: Detect station / L: Seeking.

Stereo signal input during FM reception. H: Mono, L: ST.

39 PHONE MUTE I External mute control. L: -20dB Mute.

40 CDS CS O CS signal output.

41 CDS RESET O RESET signal output.

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