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PT2257-D Datasheet(PDF) 1 Page - Princeton Technology Corp |
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PT2257-D Datasheet(HTML) 1 Page - Princeton Technology Corp |
1 / 16 page Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT2257 V1.4 - 1 - May, 2008 Electronic Volume Controller IC PT2257 DESCRIPTION The 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. The 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. The 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: 3 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 |
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