Silicon Labs offers crystal-less USB-I2S bridge
Silicon Laboratories has introduced a crystal-less USB-to-I2S audio bridge designed to support a range of codecs and digital-to-analogue converters (DACs) used in USB-based audio applications.
USB-to-I²S audio data transfer also requires sophisticated clock synchronization, which poses complex development challenges.
The CP2114 audio bridge integrates a USB 2.0 full-speed function controller, a USB transceiver, crystal-less oscillator, one-time programmable ROM, UART, IIC and I2S interface into a single chip.
The device also requires no external memory when combined with a codec or DAC.
The CP2114 audio bridge supports multiple mainstream DACs and codecs from Wolfson Microelectronics, Cirrus Logic and Texas Instruments, giving customers the flexibility to implement their own preferred audio chipset solution.
Silicon Labs offers evaluation kits pre-populated with these popular DAC and codec platforms to further speed design time.
Samples and production quantities of the CP2114 USB-to-I²S audio bridge are available now in small-footprint 5 mm x 5 mm QFN packages.
The CP2114EK, priced at $49 (USD MSRP), enables developers to evaluate and customize their USB-to-I²S bridge applications through GPIO, UART and IIC peripherals.