Tel:886-2-66296288
Fax:886-2-29174598
URL:http://www.princeton.com.tw
Electronic Volume Controller IC
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
applications. 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 SOP package and is functionally compatible with TC9235P. Pin assignments
and application circuit are optimized for low cost advantages and easy PCB Layout.
FEATURES
•
•
•
•
•
•
•
•
•
•
CMOS technology
Low power consumption
Least external components
2 channels in the same chip
0dB to -78dB 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 SOP
APPLICATION
•
Audio equipment volume control
PT2256 V1.7
-1-
August, 2006
PTC [ PRINCETON TECHNOLOGY CORP ]
