57
HCD-GNX780/GNX880
– MIC Board –
IC1100 TC9488FG
2
OSC
ADPCM
DECODE
DELAY
DRAM
ADPCM
ENCODE
ADC
DAC
S/H
POST
LPF
ALC
VOLUME CONTROL
OSCC
1
VDD
3
OSCR
4
NC
5
VOL1 (CS)
6
VOL2 (SCL)
7
VOL3 (SDA)
8
NC
9
VRO
VREF
VDA
NC
ALC1
MC1N
MC1P
15
16
14
13
12
11
10
VREF
VREF
VREF
VREF
ALC
VREF
MC2P
17
MC2N
18
ALC1
19
NC
20
VSA
21
MCO
22
PRIN
23
ADIN
24
NC
25
DA OUT
26
VOLST
27
NC
28
TEST
29
POOUT
30
VSS
– CDG Board –
IC1006 NJM2575F1-TE2
2
SAVE
3
VOUT
VIN
1
PWR
6
VCC
GND
5
LPF
75
DRIVER
6dB
CLAMP
4