43
STR-DB870/DB1070
5-25. IC PIN FUNCTION DESCRIPTION
• DIGITAL BOARD IC1201 PCM1604Y/2K (D/A CONVERTER)
Pin No. Pin Name I/O Description
1 to 6
ZER01 to ZER06 I
Not used (open)
7 AGND —
Ground terminal (for analog)
8 VCC —
Power supply terminal (+5V)
9 VOUT6 O
Analog negative signal output to the line amp (IC1261)
10 VOUT5 O
Analog negative signal output to the line amp (IC1261)
11
VOUT4 O
Analog negative signal output to the line amp (IC1241)
12
VOUT3 O
Analog negative signal output to the line amp (IC1241)
13
VOUT2 O
Analog negative signal output to the line amp (IC1221)
14
VOUT1 O
Analog negative signal output to the line amp (IC1221)
15
VCOM2 O
Common voltage output terminal
16
VCOM1 O
Lerge external capacitor is used to reduce power supply noise
17
AGND6 —
Ground terminal (for analog)
18 VCC6 —
Power supply terminal (+5V)
19
AGND5 —
Ground terminal (for analog)
20
VCC5 —
Power supply terminal (+5V)
21
AGND4 —
Ground terminal (for analog)
22 VCC4 —
Power supply terminal (+5V)
23
AGND3 —
Ground terminal (for analog)
24
VCC3 —
Power supply terminal (+5V)
25
AGND2 —
Ground terminal (for analog)
26
VCC2 —
Power supply terminal (+5V)
27
AGND1 —
Ground terminal (for analog)
28
VCC1 —
Power supply terminal (+5V)
29
AGND0 —
Ground terminal (for analog)
30
VCC0 —
Power supply terminal (+5V)
31, 32
NC —
Not used (open)
33
MDO O
Serial data output to the system control (IC1703)
34
MDI I
Serial dara input from the system controller (IC1703)
35
MC I
Clock signal input from the system controller (IC1703)
36
ML I
Latch signal input from the system controllrt (IC1703)
37
RST I
Reset signal input from the system controller (IC1703)
38
SCKI I
Serial clock signal input from the audio DSP2 (IC1601)
39
SCKO O
Serial clock signal output terminal Not used (open)
40
BCK I
Bit clock signal input from the audio DSP2 (IC1601)
41
LRCK I
L/R sampling clock signal input from the audio DSP2 (IC1601)
42
TEST I
Test data input terminal (fixed at “L” )
43
VDD —
Power supply terminal (+5V)
44
DGND —
Ground terminal (for digital)
45
DATA1 I
Audio serial data1 input from the audio DSP2 (IC1601)
46
DATA2 I
Audio serial data2 input from the audio DSP2 (IC1601)
47
DATA3 I
Audio serial data3 input from the audio DSP2 (IC1601)
48
ZER0A I
Zero input detect terminal Not used (open)
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