Electronic Volume Controller IC
PIN CONFIGURATION
LIN
LOUT
VS S
SDA
PT 2 25 7
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT2257
RIN
ROUT
VDD
SCL
PIN DESCRIPTION
Pin Name
LIN
LOUT
VSS
SDA
SCL
VDD
ROUT
RIN
I/O
Description
I
Left Input Channel
Connect a Capacitor to Audio Source
O
Left Output Channel
Connect a Capacitor to Audio Output
- Ground
I
I2C Data Input
I
I2C Clock Input
- Power Supply
O
Right Output Channel
Connect a Capacitor to Audio Output
I
Right Input Channel
Connect a Capacitor to Audio Source
Pin No.
1
2
3
4
5
6
7
8
PT2257 V1.3
-3-
December, 2006