PT2257-SL 查看數據表（PDF） - Princeton Technology

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PT2257-SL

Electronic Volume Controller IC

Princeton Technology 

Electronic Volume Controller IC

Tel: 886-2-66296288

Fax: 886-2-29174598

URL: http://www.princeton.com.tw

PT2257

DESCRIPTION

PT2257 is an Electronic Volume Controller IC utilizing CMOS Technology specially designed for the

new generation of AV entertainment products. It has two (2) built-in channels making it ideally suitable

for mono and stereo sound applications. PT2257 provides an I2C Control Interface, an attenuation

range of 0 to -79dB, low noise, and high channel separation. It is housed in an 8 pins, DIP or SOP

Package, PT2257’s pin assignments and application circuit are optimized for easy PCB layout and cost

saving advantages.

FEATURES

• CMOS Technology

• Low Power Consumption

• Least External Components

• Attenuation Range: 0 to -79dB at 1dB/step

• Operating Voltage: 4 to 9V

• Low Noise, S/N Ratio>100dB (A-weighting)

• Two Channel Output

• Available in 8 pins, DIP or SOP

APPLICATIONS

• AV Surround Audio Equipment

• Car Audio

• Mini Compo

• Computer Multi-Media Speaker

• Other Audio Equipment

PT2257 V1.3

-1-

December, 2006

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