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IC BLOCK DIAGRAM & DESCRIPTION
CONTROL
CIRCUIT
LOGIC
CIRCUIT
CCB
INTERFACE
CONTROL
CIRCUIT
15
14
16
17
18
19
20
21
22
24
25
26
23
10
9
7
6
5
8
11
L4
L3
L2
L1
NC
NC
R1
R2
R3
R4
RSELO RIN RTRE
RBASS1 RBASS2
ROUT
LSELO LIN LTRE
LBASS1 LBASS2
LOUT
TEST
V
SS
CE
DI
CL
V
DD
Vref
NC
12
13
1
2
30
29
28
27
4
3
LVref
RVref
IC480 LC75342M(Function Switch / Electric Volume / 2 Band
P12
P10
ANALOG
SURROUND
ON/OFF
LEVEL
BASS
A
A
B
B
SW
SW
P1
P2
P3
P4
P5
P6
P7
P8
IN-L
IN-R
LB-ADJ
LEBEL-ADJ
GND
SW
VREF
REF
FS-L
FS-R
P11
VCC
OUT-R
OUT-L
P9
Vcc
+
+
+
+
IC481 LA2610(Analog Surround IC)