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IC441 LC75342M (2 Band Equalizer)
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
Nor/Cro
& Hi/Lo
Logic
R
R
P
R
P
P
ALC
Mute
Mute
Logic
A/B
Logic
Rec/PB
Ripple
Rejection
Rec
Amp(L)
Rec
Amp(R)
PB Amp(L)
PB Amp(R)
A/Rec
A/Rec
B
B
1
2
3
4
5
7
6
8
9
10
12
11
13
14
15
16
17
18
19
20
21
22
23
24
L-PB AMP
R-PB AMP
R-PB NF
R-PB EO
R-PB OUT
AB SW
R-REC OUT
R-REC IN
REC/PB SW
A/B SW
FIL
TER
GND
VCC
CR
O/NOR
HI/LO
ALC
L-REC OUT
L-REC IN
ALC
L-PB
AMP OUT
L-PB EO
L-PB NF
R-PB AMP
L-PB AMP
IC440 AN7348K (PLAY/REC Pre Amp)
IC BLOCK DIAGRAM & DESCRIPTION
