Improving audio playback battery life by up to 2 hours, Cirrus Logic’s CS42L55 portable audio codec utilizes supply-adjusting bimodal Class H headphone driver technology for quiescent power consumption of 5.1 mW. The 5 mm × 5 mm × 0.45 mm 36-pin QFN-packaged component delivers 1 Vrms line output from a 1.8 V supply and 17 mW per channel of 96 dB dynamic range audio. The device comprises of a 2:1 stereo input multiplexer, USB master clock input, support for sample rates of up to 48 kHz, and pseudo differential outputs. The unit is based on 24-bit advanced multibit Delta-Sigma technology. Pricing is $1.73 in 10,000 quantities.
Cirrus Logic, Inc.