Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT2255A v1.0
- 1 -
April, 1999
Electronic Volume Controller IC
PT2255A
DESCRIPTION
PT2255A is an electronic volume controller IC utilizing CMOS Technology specially designed for use
on audio equipment. It has two (2) built-in channels making it ideally suitable for mono and stereo
sound applications. PT2255A provides a wide frequency response range and a very low harmonic
distortion to mention a few; thereby guaranteeing a highly effective and reliable performance.
FEATURES
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CMOS Technology
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Low Power Consumption
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High Operating Voltage Range : Vcc = 4 ~ 12 V
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(Backup Voltage is up to 4 V)
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0dB to -34dB attenuation controlled by 1dB/step
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2 Channels in each chip
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Capable to control attenuation by a built-in oscillator and Up/Down Pin
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Single Power Supply or Dual Power Supplies of (+) and (-) can be used
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Wide Frequency Response Range
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Very Low Harmonic Distortion
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Available in 16 pins, DIP or SO Package
APPLICATION
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Audio Equipment Volume Control
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT2255A v1.0
- 5 -
April, 1999
Electronic Volume Controller IC
PT2255A
ORDERING INFORMATION
Valid Part Number
Package
PT2255A
16 Pins, DIP
PT2255A-SN
16 Pins, SO (150 mil)
PT2255A - X
Package:
D: DIP Package (may be omitted)
SN : SO Package (150 mil)
Part Number
PTC Prefix
PDF 
ZIP
