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IC BLOCK DIAGRAM-1/1
QQ
3 7 63 1515 0
IC, BA4558N
IC, TA2104AN
FM RF OUT
RF VCC
AM RF IN
TE
L 13942296513
24
23
FM
RF
1
2
RF GND
FM RF IN
AM LOW
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FM OSC
AM OSC
22
21
20
AM
OSC
FM
OSC
BUFF
BUFF
AM
MIX
FM
MIX
3
4
5
MIX OUT
VCC
CUT
x
ao
y
i
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8
Q Q
OSC OUT
ST LED
IF REQ
3
6 7
1 3
19
18
17
IF
REQ
SW
ST
IF
BUFF
LEVEL
DET
1/8
AM
DET
AMIF
FMIF
6
7
8
AM IF IN
FM IF IN
GND
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.
-17-
2 9
9 4
2 8
DET OUT
LPF1
1 5
0 5
8
2 9
9 4
16
15
AF
AF
BUFF
VCO
DIVIDE
FM
ST/MO
DET
FM/AM
AGC
9
10
AGC
QUAD
R-OUT
m
co
9 9
LPF2
2 8
9 9
14
13
DECODE
MUTE
11
12
L-OUT
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