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Xicor rolls dual audio potentiometer

Posted: 30 Jul 2002 ?? ?Print Version ?Bookmark and Share

Keywords:xicor? x9460? potentiometer ic? volume control? mechanical potentiomenter?

A digitally programmable dual 32-tap potentiometer IC from Xicor Inc. enables full digital control of audio volume via front-panel pushbuttons or remote control, eliminating the use of mechanical potentiometers for volume control.

Targeting STBs, DVD players, and home theater systems with surround sound, the X9460 offers 6-bit resolution over an audio-level control range of 0dB to -62dB, plus a -90dB mute. It can be used for adjusting audio signals in preamplifier stages of audio equipment.

Channel crosstalk is -102dB and noise plus distortion below signal levels is 95dB. A zero-crossing detection circuit eliminates the audible clicks that can occur in other digital potentiometers during wiper changes.

The X9460 is housed in a 14-lead TSSOP, specified over commercial and industrial temperature ranges. It is due for production in August. Samples are available now. In lots of 1,000, the price is $2.15.

EE Times

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