Pin No.
Pin Name
Description (Function)
1
V
CC
Power supply (shorted with pin 30)
2
Mute
ON/OFF control for all BTL AMP outputs
3
V
IN
1
BTL AMP 1 input
4
VG1
BTL AMP 1 input (for gain control)
5
V
O
1
BTL AMP 1 output (non-inverting side)
6
V
O
2
BTL AMP 1 output (inverting side)
7
GND
GND (minimum electric potential)
8
GND
GND (minimum electric potential)
9
GND
GND (minimum electric potential)
10
V
O
3
BTL AMP 2 output (inverting side)
11
V
O
4
BTL AMP 2 output (non-inverting side)
12
VG2
BTL AMP 2 input (for gain control)
13
V
IN
2
BTL AMP 2 input
14
REG OUT
Connection for collector of external transistor (PNP); 5 V supply output
15
REG IN
Connection for base of external transistor (PNP)
16
RES
Reset output
17
C
D
Reset output delay time setting (with capacitor)
18
V
IN
3
BTL AMP 3 input
19
VG3
BTL AMP 3 input (for gain control)
20
V
O
5
BTL AMP 3 output (non-inverting side)
21
V
O
6
BTL AMP 3 output (inverting side)
22
GND
GND (minimum electric potential)
23
GND
GND (minimum electric potential)
24
GND
GND (minimum electric potential)
25
V
O
7
BTL AMP 4 output (inverting side)
26
V
O
8
BTL AMP 4 output (non-inverting side)
27
VG4
BTL AMP 4 input (for gain control)
28
V
IN
4
BTL AMP 4 input
29
V
REF
Reference voltage input for level shift circuit
30
V
CC
Power supply (shorted with pin 1)
LA6541D Pin Functions
PC-X250
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