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3 7 63 1515 0
6-4 Electronic Volume System IC : LC75343M : (X29, IC601)
Pin No.
Pin Name
1
DI
2
CE
3
VSS
4
LOPOUT
5
LINM
6
LINP
7
LOUT
LBASS1,LBASS2
10,9,28,
RBASS1,RBASS2
29,8,30
LSB,RSB
11
LTRE
12
LVRIN
13
LSEL0
14,24
L5,R5
15,23
L4,R4
16,22
L3,R3
17,21
L2,R2
18,20
L1,R1
19
VREF
25
RSEL0
26
RVRIN
27
RTRE
31
ROUT
32
RINP
TE
L 13942296513
33
RINM
34
ROPOUT
35
VDD
36
CL
6-5 RDS Demodulator IC : BU1923F (X29, IC801) E/T Type only
Pin No.
Pin Name
1
QUAL
2
RDATA
3
VREF
4
MUX
5
VDD1
6
VSS1
7
VSS3
8
CMP
9
T2
10
T1
11
VSS2
12
VDD2
13
XI
14
XO
15
N.C.
16
RCLK
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CIRCUIT DESCRIPTION
I/O
I
Serial data input pin for control.
-
Chip enable pin.
-
Ground pin.
O
Output pin of general-purpose operation amplifier.
I
Non-inverted input pin of general-purpose operation amplifier.
I
Non-inverted input pin of general-purpose operation amplifier.
O
ATT + equalizer output pin/ capacitor connection pin comprising filter for super-bass.
Capacitor and resistor connection pins comprising filters for
-
bass and super-bass band or for mid and bass band.
-
Capacitor connection pin comprising treble band filter.
I
Volume input pin.
O
Input selector output pin.
I
Input signal pin (open).
I
AUX input.
I
TUNER input.
I
DECK (playback) input.
I
CD input.
-
Reference voltage for analog ground.
O
Input selector output pin.
I
Volume input pin.
-
Capacitor connection pin comprising treble band filter.
O
ATT + equalizer output pin/ capacitor connection pin comprising filter for super-bass.
I
Non-inverted input pin of general-purpose operation amplifier.
I
Non-inverted input pin of general-purpose operation amplifier.
O
Output pin of general-purpose operation amplifier.
-
Power supply pin.
I
Clock input pin for control.
I/O
O
Output for signal quality indication.
O
Demodulation data output.
I
Reference voltage input.
I
Composite signal input.
-
Analog power supply.
-
Analog GND.
-
Analog GND.
I
Comparator.
I
Test pin (connected to be ground).
I
Test pin (connected to be ground).
-
Digital GND.
-
Digital power supply.
I
Crystal oscillation circuit input.
O
Crystal oscillation circuit output.
-
Unused.
I/O Demodulation clock.
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ao
u163
y
i
RXD-M55-H/M55-N/M55-S/M55E-H/M55E-N/M55E-S
2 9
8
Pin Description
Q Q
3
6 7
1 3
1 5
Pin Description
co
.
9 4
2 8
0 5
8
2 9
9 4
2 8
m
9 9
9 9
13
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