PT2312E

V1.0

4

January 2010

PIN DESCRIPTION

Pin Name

I/O

Description

Pin No.

REF

-

Reference voltage

1

VDD

-

Supply input

2

AGND

-

Analog ground

3

NC

-

No Connect

4

TREB_L

I

L-CH treble input

5

TREB_R

I

R-CH treble input

6

RIN

I

R-CH volume input

7

ROUT

O

R-CH mux output

8

LOUD_R

I

R-CH loudness input

9

RIN4

I

R-CH input 4

10

RIN3

I

R-CH input 3

11

RIN2

I

R-CH input 2

12

RIN1

I

R-CH input 1

13

NC

-

No Connect

14

LOUD_L

I

L-CH loudness input

15

LIN4

I

L-CH input 4

16

LIN3

I

L-CH input 3

17

LIN2

I

L-CH input 2

18

LIN1

I

L-CH input 1

19

LIN

I

L-CH volume input

20

LOUT

O

L-CH mux output

21

BIN_L

I

L-CH bass input

22

BOUT_L

O

L-CH bass output

23

BIN_R

I

R-CH bass input

24

BOUT_R

O

R-CH bass output

25

RROUT

O

Right rear output

26

LROUT

O

Left rear output

27

RFOUT

O

Right front output

28

LFOUT

O

Left front output

29

DGND

-

Digital ground

30

SDA

I

I

31

SCL

I

I

32

* Pin 4 in the PT2312 and PT2312A is for “CODE” function and always pull-high by external connection, the PT2312E

modified to internally pull-high so pin 4 becomes to NC status.