From USB2.0 and audio switches to multimedia

摘要

Features, features, and more features! That is a theme that has emerged in the ultraportable market in the last few years. There is now a natural migration for multiplexing audio and data sources onto the USB data cable. With the addition of video/TV there also is a need for multimedia switches that are optimized for each of these data sources (MP3 players, portable media players, and mobile TV cell phones).rnUSB-optimized switches provide the preferred solution for this datapath signal routing. Audio and USB paths present different, mutually exclusive characteristics to consider, including negative-swing audio. Combining each of these paths and maintaining good signal integrity and performance is an interesting challenge.