KA3032
Pin Definitions
Pin Number
Pin Name
I/O
O
I
Pin Function Description
CH 1 op-amp output
1
OUT1
IN2.1
2
CH 1 op-amp input (+)
CH 2 op-amp input (−)
CH 2 op-amp output
CH 3 op-amp input (+)
Ground
3
IN2.2
I
4
OUT2
IN3.1
O
I
5
6
GND
-
7
GND
-
Ground
8
IN3.2
I
CH 3 op-amp input (−)
CH 3 op-amp output
CH 4 op-amp input (+)
CH 4 op-amp input (−)
CH 4 op-amp output
CH 5 motor speed control
CH 5 forward input
CH 5 reverse input
Signal ground
9
OUT3
IN4.1
O
I
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
IN4.2
I
OUT4
CTL
O
I
FWD1
REW1
SGND
OPOUT
GND
I
I
-
O
-
Opamp output
Ground
GND
-
Ground
OPIN(+)
OPIN(−)
MUTE4
MUTE3
MUTE1, 2
PVCC1
DO5.2
DO5.1
DO4.2
DO4.1
GND
I
Opamp input (+)
Opamp inpt (−)
I
I
CH 4 mute
I
CH 3mute
I
CH 1, CH 2 mute
Power supply voltage (For CH 5)
CH 5 drive output
CH 5 drive output
CH 4 drive output
CH 4 drive output
Ground
-
O
O
O
O
-
GND
-
Ground
DO3.2
DO3.1
PGND
DO2.2
DO2.1
DO1.2
DO1.1
PVCC2
O
O
-
CH 3 drive output
CH 3 drive output
Power ground
O
O
O
O
-
CH 2 drive output
CH 2 drive output
CH 1 drive output
CH 1 drive output
Power supply voltage
(For CH 1, CH 2, CH 3, CH 4)
3
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
