Philips ST-D777ES - IC Block Diagram - LC, LA Series

32
IC201 LC72130 (MAIN board)
1
2
3
4
5
6
7
8
XIN
B03
CE
IFIN
AOUT
2
AIN1 AIN2
D1
CL
B04
D0
B01
I01
B02
XOUT PD1 VSS PD2 FMIN AMIN AOUT1 VDD I02
B05
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
PHASE DETECTOR
CHARGE PUMP
SWALLOW COUNTER
1/16.1/17 4bits
SWALLOW COUNTER
1/16.1/17 4bits
POWER
ON
RESET
1/2
C B
I / F
REFERENCE
DIVIDER
REFERENCE
DIVIDER
C B
I / F
2
DATA SHIFT REGISTER
LATCH
IC202 LA1245 (MAIN board) IC203 LA1235 (MAIN board)
3
6 92 5 81
4
7 10
18
15 1219 16 1320
17
14 11
AM RF AMP
AM IF AMP
AM
MIXING
AGC
AM
OSC
GND
B+
(RF)
AM DET
METER
DRIVE
B+
(IF)
3 6
11
2 5 81 4
1415 12 91016 13
7
FM IF AMP
LIMITER
AF/NULL
METER
QUADRATURE
DET
AF AMP
IF OFF
NULL METER
SHORTING
LEVEL
DET
METER
DRIVE
MUTING
CIRCUIT
DETUNE
DET
GND
B+