Symbol
Pin
Description
ADSEL
1
I2C-busaddressselect
STBY
2
Standby pin
PGND2
3
channel 2 power ground
OUT2
4
channel 2 negative output (left rear)
DIAG
5
diagnostic and clip detection output
OUT2+
6
channel 2 positive output (left rear)
VCC1
7
power supply voltage1
OUT1
8
channel 1 negative output (left front)
PGND1
9
channel 1 power ground
OUT1+
10
channel 1 positive output (left front)
SVR
11
half supply voltage filter capacitor
IN1
12
channel 1 input
IN2
13
channel 2 input
SGND
14
signal ground
IN4
15
channel 4 input
IN3
16
channel 3 input
ACGND
17
AC ground
OUT3+
18
channel 3 positive output (right front)
PGND3
19
channel 3 power ground
OUT3
20
channel 3 negative output (right front)
VCC2
21
power supply voltage2
OUT4+
22
channel 4 positive output (right rear)
SCL
23
I2C-bus clock input
OUT4
24
channel 4 negative output (right rear)
PGND4
25
channel 4 power ground
SDA
26
I2C-bus data input and output
TAB
27
heatsink connection；must be connected to ground
