PT2256

Tel:886-2-66296288 Fax:886-2-29174598 URL:http://www.princeton.com.tw www.DataSheet4U.com 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 Tel:886-2-66296288 Fax:886-2-29174598 URL:http://www.princeton.com.tw www.DataSheet4U.com Electronic Volume Controller IC PT2256 BLOCK DIAGRAM VS S OUT1 IN 1 LT 1 AG N D VD D OUT2 IN 2 LT 2 AG N D D e co d e r /U P /D N O SC U p /D o w n C o u n te r C o n tr o l D/A Con ve rte r DCO /I N H /R ST PT2256 V1.7 -2- August, ...