CP2114-CS42L55EK: USB to I²S Bridge

The CP2114 Evaluation Kits are stand-alone evaluation platforms with easy access to all signals on the device. All evaluation kits come with a CP2114 evaluation board, USB cable, and RS-232 cable. Some Evaluation Kits come with a CODEC/DAC daughter card to allow the product to play audio out-of-the-box.

The CP2114-CS42L55 Evaluation Kit (CP2114-CS42L55EK) includes the CP2114 evaluation board, a daughter card with Cirrus Logic CS42L55 CODEC, ear bud headphones, a 3.5 mm male-to-male audio cable, a USB cable, and a RS-232 cable.

The CP2114 includes a USB 2.0 full-speed function controller, USB transceiver, oscillator, one-time programmable read-only memory (ROM), I2S (audio) interface, I2C (control) interface, and UART interface in a compact 5 x 5 mm QFN-32 package (sometimes called “MLF” or “MLP”). The one-time programmable ROM on the device may be used to customize both product information (including USB fields such as Vendor ID, Product ID, Strings, etc.) and external DAC configuration strings.

By default, the CP2114 provides the following features: enumerates to the host as a standard USB audio device and HID consumer control; pre-configured support for three commercial DACs; tested for USB plug and play and audio quality on all major operating systems; UART interface using standard USB HID device class which is natively supported by most operating systems; and twelve GPIO signals which support alternate functions.