PA3431

CMOS IC

UNISONIC TECHNOLOGIES CO., LTD

2 of 11

www.unisonic.com.tw

QW-R502-225.C



PI N CON FI GU RAT I ON

1

2

3

4

5

6

7

GND

GAIN0

GAIN1

8

9

10

BYPASS

20

19

18

17

16

15

14

GND

SHUTDOWN

13

12

11

GND

NC

GND



PI N DESCRI PT I ON

PIN NO.

PIN NAME

I/O

DESCRIPTION

1,11 13,20

GND

Ground

2

GAIN0

I

Bit 0 of gain control

3

GAIN1

I

Bit 1 of gain control

4

O

Positive output for left channel

5

I

Negative differential input for left channel

6,15

I

Supply voltage

7

I

Positive differential input for right channel

8

O

Negative output for left channel

9

I

Positive differential input for left channel

10

BYPASS

Tap to voltage divider for internal mid supply bias generator

12

NC

Nothing connection

14

O

Negative output for right channel

16

Supply voltage

17

I

Negative differential input for right channel

18

O

Positive output for right channel

19

SHUTDOWN

I

In shutdown mode when held low