Korean Stereo Processor Pin Function (Nk-11 Board Ic1) - Sony SLV-ED1PL Service Manual

5-6. KOREAN STEREO PROCESSOR PIN FUNCTION (NK-11 BOARD IC1)

Pin. No. Pin Name I/O
1 OUTL O Analog output left
2 OUTR O Analog output right
3 VDDA1 – Analog power supply; DAC circuitry
4 VSSA1 – Analog ground; DAC circuitry
5 VSSD1 – Digital ground; DAC circuitry
6 VDDD1 – Digital power supply; DAC circuitry
7 VSSD2 – Digital ground; DSP part
8 VDDD2 – Digital power supply; DSP part
9 TP2 I Additional test pin 2; connected to ground for normal operation
10 NICAM – Not used
11 TP1 I Additional test pin 1; connected to ground for normal operation
12 PCLK – Not used
13 ADDR1 – Not used
14 Vtune O Tuning voltage output for crystal oscillator
15 XTALI I Crystal oscillator input
16 XTALO O Crystal oscillator output
17 TEST2 I Test pin 2; connected to ground for normal operation
18 Iref I Resistor for reference current generation; front end circuitry
19 ADDR2 – Not used
20 VSSA2 – Analog ground; analog front end circuitry
21 VDDA2 – Analog power supply; analog front end circuitry
22 TEST1 I Test pin 1; connected to ground for normal operation
23 SIF2 I Sound IF input 2
24 Vref1 I Reference voltage; analog front end circuitry
25 SIF1 I Sound IF input 1
26 CRST Capacitor for power-on reset
27 VSSD3 – Digital supply; front end circuitry
28 VDDD3 – Digital supply; front end circuitry
29 SCL I Serial communication signal (IIC CLOCK)
30 SDA I Serial communication signal (IIC DATA)
31 SDO – Not used
32 WS – Not used
33 SCK – Not used
34 SYSCLK – Not used
35 VDDD4 – Digital power supply; demodulator circuitry
36 VSSD4 – Digital ground; demodulator circuitry
37 P1 – Not used
38 MONOIN – Not used
39 EXTIR I External audio input right channel
40 EXTIL I External audio input left channel
41 Vref2 I Analog reference voltage digital-to-analog converter and operational amplifiers
42 P2 – Not used
43 VDDA3 – Analog power supply; operational amplifiers
44 VSSA3 – Analog ground; operational amplifiers
Function