1-19
KS-FX893
2.Terminal layout
3.Pin function
LA4743B
TAB
GND
OUTRR-
STBY
OUTRR+
VCC1/2
OUTRF-
GND
OUTRF+
RIPPLE
INRF
INRR
SGND
INLR
INLF
ONTIME
OUTLF+
GND
OUTLF-
VCC3/4
OUTLR+
MUTE
OUTLR-
GND
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Symbol
Pin No.
Function
Header of IC
Power GND
Outpur(-) for front Rch
Stand by input
Output (+) for front Rch
Power input
Output (-) for rear Rch
Power GND
Output (+) for rear Rch
Ripple filter
Rear Rch input
Front Rch input
Signal GND
Front Lch input
Rear Lch input
Power on time control
Output (+) for rear Lch
Power GND
Output (-) for rear Lch
Power input
Output (+) for front
Muting control input
Output (-) for front
Power GND
Non connection
1
2
3
4
5
6
7
8
9
10
GND OUT1 P1
VZ
IN1
IN2
VCC1 VCC2 P2
OUT2
Input
Output
Mode
IN1
IN2
OUT1
OUT2
Brake
0
0
0
0
1
0
1
0
0
1
0
1
1
1
0
0
CLOCKWISE
COUNTER-CLOCKWISE
Brake
LB1641 (IC402) : DC motor driver
1. Pin layout
2. Pin function
