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IC4201 Hi-Fi AUDIO SIGNAL PROCESS IC- DETAIL BLOCK DIAGRAM
REC AUDIO SIGNAL
PB AUDIO SIGNAL
48
47
46
45
44
43
42
DEMODULATOR
BLOCK
IIC BUS
49
INTERFACE
MTS/SAP
50
DEMODULATOR
VCC
51
MTS
DBX NOISE
REDUCTION
52
OUTPUT
SELECT
53
SWITCH
RCH
L+R
54
REF
55
GND
+
MTS
56
LED
OUTPUT
SELECT
57
SWITCH
LCH
58
VCC
59
TUNER
SWITCH
DET
60
NORMAL
61
OUTPUT
SWITCH
62
SPECTRAL
63
DET
INPUT SWITCH RCH
SPECTRAL
64
TIMING
VREF
1
2
3
4
5
6
7
41
40
39
38
37
36
35
34
PNR RCH
AGC &
SWITCH
FM
MODULATOR/
DEMODULATOR
LPF
BPF
BPF
+
AGC
LPF
FM
MODULATOR/
DEMODULATOR
AGC &
SWITCH
INPUT SWITCH LCH
WIDE BAND
WIDE BAND
TIMING
GND(L)
DET
8
9
10
11
12
13
14
15
33
32
NOISE
31
DET
30
29
HIFI
28
PLAY(H)
27
REC
26
DC2
VCC
25
PREAMP
&
24
SWITCH
GND
23
22
21
20
19
PNR
18
LCH
17
16
45
AG-520VDH
IC4201 DETAIL BLOCK DIAGRAM
AG-520VDH
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