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IC BLOCK DIAGRAM -3/3
QQ
3 7 63 1515 0
IC, BU4052BC
INHIBIT
X1
TE
L 13942296513
IC, TA2149N
FM
RF
RFout
V
CC
24
23
FMRF
www
.
1
2
RF
FM
GND
RFin
http://www.xiaoyu163.com
AM
FM
AM
RFin
OSC
OSC
22
21
20
AM
OSC
FM
OSC
BUFF
1/1 or
1/16
BUFF
LEVEL
AM
MIX
FM
MIX
x
ao
u163
y
i
3
4
5
MIX
V
LOW
CC
CUT
OUT
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2 9
8
IC, TA2092N
GND1
XCOM
GND2
YCOM
Q Q
3
6 7
1 3
1 5
OSC
ST
IF
DET
OUT
LED
REQ
OUT
19
18
17
IF
REQ
AF
BUFF
ST
SW
IF
BUFF
1/8
DET
AM
DET
AGC
AMIF
FMIF
co
.
6
7
8
AM IF
FM IF
GND
IN
IN
-26-
9 4
2 8
0 5
8
2 9
9 4
MPX
IN
LPF1
LPF2
16
15
14
13
AF
VCO
DECODE
DIVIDE
FM
SM/MO
DET
FM/AM
m
MUTE
9
10
11
12
AGC
QUAD
R-OUT
MONO/ST
9 9
GND4
GND3
2 8
9 9
L-OUT
AM/FM
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