-18-
IC BLOCK DIAGRAM-1/1
IC, BA3308
IC, MM1469XH
IC, TA8127N
IC, TA2111N
1
2
3
4
5
6
7
Le
v
el shift
10k
13k
T.S.D
10k
10k
50k
50k
28
27
26
25
24
23
22
Le
v
el shift
10k
13k
Vcc
21
20
19
18
17
16
15
Vcc
Le
v
el shift
10k
13k
8
9
10
11
12
13
14
DRIVER MUTE
Le
v
el shift
10k
13k
24
23
22
21
20
19
18
17
16
15
14
11
10
9
8
7
6
5
4
3
2
1
12
13
AM
MIX
FM
MIX
AM
OSC
FM
OSC
AF
BUFF
AM
DET
FM
IF
AM
IF
LEVEL
DET
FM
DET
TUN
LED
ST
LED
AGC
FM
RF
FM RF IN
RF GND
MIX OUT
AGC
VCC
GND
TUN LED
ST LED
QUAD
AM
LOW CUT
AM
IF IN
FM
IF IN
FM
MUTE
ST/MO
FM/AM
AF
VCO
DECODE
DIVIDE
AM RF IN
FM RF OUT
FM OSC
AM OSC
AFC
LPF2
LPF1
L-OUT
R-OUT
RF VCC
DET OUT
MPX IN