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IC Block Diagrams – Tuner Section –
IC1 TA2008AN
IC2 LC72137M-TLM
21
22
23
24
2
3
5
4
6
7
8
9
10
1
11
12
13
14
15
16
17
18
19
20
AM
RF
FM
RF
BUFF
BUFF
IF
BUFF
AF
BUFF
FM MPX
FM
MIX
FM
IF
AM
IF
AM
MIX
AM
DET
1/8DIV
MUTE
AGC
FM RF IN
GND1
MIX OUT
AGC
VCC2
FM IF IN
AM IF IN
GND2
QUAD
ST IND
L OUT
R OUT
AM RF IN
FM RF OUT
AM OSC
FM OSC
VCC1
OSC OUT
IF OUT
DET OUT
MPX IN
LPF1/BAND
LPF2/MO-ST
VCO
FM
DET
ST
DET
LEVEL
DET
AM
OSC
FM
OSC
AM/FM
ST/MONO
SW
OCB
I/F
1
CE
2
RD
3
CK
4
CD
16
PD
VSS
15
VDD
14
13
MO/ST
20
X OUT
18
LP-OUT
17
LP-IN
19
X IN
5
LW
-L
6
MW
-L
7
BAND
8
S
T-IND
9
FM-L
DATA SHIFT REGISTER
LATCH
UNIVERSAL
CONTROLER
SWALLOW COUNTER
1/16. 1/17 4 BITS
12 BIT PROGRAMBLE
DIVIDER
UNLOCK
DETECTOR
PHASE DETECTOR
CHARGE PUMP
FILTER
REFERENCE
DIVIDER
POWER
ON
RESET
1/2
10
IF-IN
12
FM-IN
AM-IN
11