Sony CDX-C4750 - Page 32

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IC601 TDA7427AD1
IC901 BA4903
SWITCH
LP1/LP2
PORT
EXTENSION
CHARGE
PUMP
TEST
LOGIC
16 BIT PROG
COUNTER
REF
OSCILLATOR
TIMER CONTROL
SWITCH
OUT
SUPPLY
&
POWER ON
RESET
11-21 BIT PROG COUNTER
14 BIT PROG
COUNTER
SWITCH
AM/FM
PHASE
COMP
INLOCK
DETECTOR
11 BIT PROG
COUNTER
SWITCH
SWM/DIR
6 BIT PROG
COUNTER
SWITCH
SWM/DIR
PRE COUNTER
:32/33
I
2
C BUS
INTERFACE
SWITCH
AM/FM
VDD1
1
2
3
4
6
7
8
5
9
10
11
14
12
13
17
18
19
20
21
22
23
24
25
26
27
28
16
15
LP FM
LP HC
LP AM
V REF
LCL/DX
SEEK
NIL
MONO
OSCIN
OSCOUT
NC
SCL
SDA
IF AM
LPOUT
VDD2
GND AM
AM IN
FM IN
NC
GND D
VDD1
ADDR
HFREF
AMOSC
DOUT/INLOCK
SSTOP
IF FM
REGULATOR
VREF
+– +–
THERMAL
SHUT
DOWN
OVER
VOLTAGE
PROTECT
CIRCUIT ON
51 2 3 4
AMP
ON
AMP
OUT
GND VCC VDD
OUT
ON ON
5.7V