ISL54211

DATASHEET ISL54211 MP3/USB 2.0 High Speed Switch with Negative Signal Handling/Click and Pop Suppression FN6662 Rev 1.00 August 25, 2008 The Intersil ISL54211 dual SPDT (Single Pole/Double Throw) switches combine low distortion audio and accurate USB 2.0 high speed data (480Mbps) signal switching in the same low voltage device. When operated with a 2.7V to 5.0V single supply these analog switches allow audio signal swings below-ground, allowing the use of a common USB and audio headphone connector in Personal Media Players and other portable battery powered devices. The ISL54211 logic control pins are 1.8V compatible with a supply voltage of 2.7V to 3.6V, which allows for control via a standard µcontroller. The part has an audio enable control pin (CTRL) to open all in-line switches and activate the audio click and pop circuitry. The high OFF-isolation and special click/pop circuitry of the audio switches eliminates click and pops in the head-phones when the audio CODEC drivers are...