36
1
2
4
1
2
4
F
E
D
C
B
A
GM-8437ZT/WL
* PD5769B
20
21
40
41
60
61
80
1
IC's marked by * are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.
Pin No.
Pin Name
I/O
Function and Operation
64
calib
O
Power IC control output
65
PWSENS
I
Power IC heat sense input
66
SYSPW
O
System power output
67
drst
O
DSP reset output (DSP)
68
drq2
O
DSP 2 request output
69
DSDRDY2
I
DSP 2 data ready input
70
RDY2
I
DSP 2 write in ready input
71
drq
1
O
DSP 1 request output
72
DSDRDY1
I
DSP 1 data ready input
73
RDY1
I
DSP 1 write in ready input
74
ASLIN
I
ASL noise input
75
AVSS
GND for microcomputer AD
76
SMUTE
O
DSP soft mute output
77
VREF
Reference for microcomputer AD
78
AVCC
Power supply for microcomputer AD
79
DSPIN1
I
DSP 1 I/F serial data input
80
DSPOUT1
O
DSP 1 I/F serial data output
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