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32
ZS-X1
– TUNER Board –
IC1
TA2149N
RF GND
3
2
1
IF REQ
AM
MIX
FM RFIN
AM LOW CUT
5
4
MIX OUT
VCC
AM IF IN
8
7
6
FM IF IN
GND
10
9
AGC
QUAD
12
11
R-OUT
L-OUT
FM RFOUT
22
23
24
20
21
17
18
19
15
16
13
14
AM RFIN
RF VCC
FM OSC
ST LED
OSC OUT
AM OSC
IF REQ
LPF1
MPX IN
DET OUT
LPF2
FM
MIX
FM
OSC
LEVEL
DET
AM
DET
MUTE
FM
DET
ST/MO
FM/AM
AM
OSC
AGC
SW
ST
1/8
BUFF
BUFF
DIVIDE
DECODE
VCO
IF BUFF
AF BUFF
AF
FM RF
AM IF
FM IF
1/1 OR
1/16
IC2
LC72137M-TLM
11
10
9
8
7
6
5
4
3
2
1
12
13
14
15
16
19
20
UNLOCK
DETECTOR
POWER ON
RESET
UNIVERSAL
COUNTER
CCB
I/F
CE
DI
CL
DO
XOUT
AOUT
XIN
AIN
PD
VSS
VDD
B04
FMIN
AMIN
B01
B02
B03
I01
I02
IFIN
PHASE
DETECTOR
CHARGE
PUMP
REFERENCE
DIVIDER
SWALLOW
COUNTER
1/16,1/17
4BITS
12BITS
PROGRAMMABLE
DIVIDER
DATA SHIFT REGISTER
LATCH
1/2
17
18