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Electronic Volume Controller IC
PT2256V
DESCRIPTION
PT2256V 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. PT2256V 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 and is functionally compatible with TC9235P. Pin assignments and
application circuit are optimized for low cost advantages and easy PCB Layout.
FEATURES
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CMOS Technology
Low Power Consumption
Wide Operation Voltage Range: VDD=4.5
~
11V
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
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Audio Equipment Volume Control
PT2256V V1.2
-1-
August, 2006
PTC [ PRINCETON TECHNOLOGY CORP ]
