Nicam Processor Pin Function (Nk-11 Board Ic1) - Sony SLV-LF1 Service Manual

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

Pin. No. Pin Name I/O
1 OUT L O Analog signal output left
2 OUT R O Analog signal output right
3 VDD A1 – Analog power supply 5V; DAC circuitry
4 VSS A1 – Analog ground; DAC circuitry
5 VSS D1 – Digital ground; DAC circuitry
6 VDD D1 – Digital power supply 5V; DAC circuitry
7 VSS D2 – Digital ground; DSP part
8 VDD D2 – Digital power supply 5V; DSP part
9 TP2 I Additional test pin 2; connected to ground for normal operation
10 N.C. – Not used
11 TP1 I Additional test pin 1; connected to ground for normal operation
12 N.C. – Not used
13 N.C. – Not used
14 V TUNE O Tuning voltage output for crystal oscillator
15 XTAL I I Crystal oscillator input
16 XTAL O O Crystal oscillator output
17 TEST2 I Test pin 2; connected to ground for normal operation
18 I REF I Resistor for reference current generation; front end circuitry
19 N.C. – Not used
20 VSS A2 – Analog ground; analog front end circuitry
21 VDD A2 – Analog power supply 5V; analog front end circuitry
22 TEST1 I Test pin 1; connected to ground for normal operation
23 SIF2 I Sound IF input 2
24 V REF1 I Reference voltage; analog front end circuitry
25 SIF1 I Sound IF input 1
26 C RST Capacitor for power-on reset
27 VSS D3 – Digital ground; front end circuitry
28 VDD D3 – Digital power supply 5V; front end circuitry
29 SCL I Serial communication clock signal input
30 SDA I Serial communication data signal input
31 N.C. – Not used
32 N.C. – Not used
33 N.C. – Not used
34 N.C. – Not used
35 VDD D4 – Digital power supply 5V; demodulator circuitry
36 VSS D4 – Digital ground; demodulator circuitry
37 N.C. – Not used
38 N.C. – Not used
39 EXTI R I External audio input right channel
40 EXTI L I External audio input left channel
41 V REF2 I Analog reference voltage digital-to-analog converter and operational amplifiers
42 N.C. – Not used
43 VDD A3 – Analog power supply 5V; operational amplifiers
44 VSS A3 – Analog ground; operational amplifiers
5-7. ZWEITON PROCESSOR PIN FUNCTION (GK-12 BOARD IC001)
Function Pin. No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
Pin Name I/O
OUT L O Audio left signal output
OUT R O Audio right signal output
CDE1 – De-emphasis 1 capacitor
N.C. – Not used
N.C. – Not used
CDE2 – De-emphasis 2 capacitor
A GND – Analog ground
AF1 I I Audio 1 signal input
N.C. – Not used
AF1 O O Audio 1 signal output
N.C. – Not used
N.C. – Not used
AFR I AF 1/2 signal return
LF1 – Loop filter 1
XTAL I 4MHz reference input
N.C. – Not used
N.C. – Not used
LF2 – Loop filter 2
N.C. – Not used
N.C. – Not used
MAD I Programmable address bit (module address)
N.C. – Not used
N.C. – Not used
CAF1 O AF1 capacitor
IF INT I IF intercarrier input
CAF2 O AF2 capacitor
D GND – Digital ground
VCC – Power supply 5V
SCL I Serial communication clock input
SDA I/O Serial communication data input and output
LPF – Pilot loop filter
AF2 O O Audio 2 signal output
AF2 I I Audio 2 signal input
CTR IG – Trigger capacitor
CID – Identification capacitor
N.C. – Not used
P1 O Output port 1
EXT M I External audio input monaural channel
EXTI R I External audio input right channel
EXTI L I External audio input left channel
V REF I Analog reference voltage digital-to-analog converter and operational amplifiers
P2 O Output port 2
OUT M O Audio monaural signal output
N.C. – Not used
Function