Chip brings plug and play simplicity to audio design

Designed to support codecs and d/a converters used in usb based audio applications, Silicon Laboratories' new CP2114 audio bridge chip is aimed at simplifying the process of transferring audio data from usb to I² S.

The plug and play solution integrates a usb 2.0 full speed function controller, usb transceiver, crystal-less oscillator, one time programmable rom, UART, IIC and I²S interface. The device's crystal-less architecture is said to eliminate the need for external clock crystals and associated components, reducing audio system bom cost and design complexity. It also requires no external memory when combined with a codec or d/a converter. "The CP2114 is the most developer friendly usb to I²S audio bridge solution available, vastly simplifying usb audio peripheral design," said Mike Salas, vice president and general manager of Silicon Labs' microcontroller products.