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Stereo Audio Switch Eliminates Clicks and Pops

Fri, 01/16/2009 - 4:14am

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Intersil ISL54406Performing in mp3 players, docking speaker systems, cell phones, portable DVD players, and sound cards, Intersil Corporation’s ISL54406 stereo audio switch is said to eliminate unwanted clicks and pops typically caused by powering up and down, muting on and off, and switching between audio sources. The component delivers total harmonic distortion (THD) of 0.015% at 1 mW into a 32-O load. The THD switching path can be interrupted to provide >110 dB of off-isolation for signal muting purposes into 32-O impedance loads. Recovery from muting is instantaneous even with larger DC blocking capacitors, and the instant-on capability needs no timing capacitor and requires 7 mA of supply current. Active and standby modes of operation are offered with the standby mode reducing the supply current to 5 nA max. From $0.51 each in 1,000 quantities.

Intersil Corporation
408-432-8888, www.intersil.com

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