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Princeton Technology Corp.

Electronic Volume Controller IC

Tel : 886-2-29162151

Fax: 886-2-29174598

URL:

http://www.princeton.com.tw

PT2256

DESCRIPTION

PT2256 is an electronic volume controller IC utilizing CMOS Technology specially designed for use on

audio equipment. It has 2 built-in channels making it ideally suitable for mono and stereo sound appli-

cations. PT2256 provides the Loudness Function, a wide frequency response range and a very low total

harmonic distortion, thereby guaranteeing a highly effective and reliable performance. It is housed in

16-pin DIP or SO package and is functionally compatible with TC9235P. Pin assignments and applica-

tion circuit are optimized for low cost advantages and easy PCB Layout.

FEATURES

鈥?/div>

CMOS Technology

Low Power Consumption

Least External Components

2 Channels in the same chip

0 dB to -78 dB Attenuation can be controlled by UP and Down Pin.

20dB Tap for Loudness Circuit

Built-in DC Output Circuit (8 levels) for Volume Level Metering

Wide Frequency Response Range

Low Total Harmonic Distortion

Available in 16 pins DIP or SO Package

APPLICATION

鈥?Audio Equipment Volume Control

PT2256 v1.3

1

Updated Sept. 2000

PT2256-S Datasheet