NAU88C22-CEVB

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The NAU88C22-CEVB is an evaluation and demonstration board released by Texas Instruments Inc. that designed to allow engineers to quickly and easily experiment and evaluate the performance of the NAU88C22 low-power stereo audio codec. The board helps engineers prototype project, discuss product design and create reference design.

The NAU88C22 is a low-power, stereo audio codec device, and is optimized for portable audio applications. It features stereo differential analog input, multi-function left/right digital microphone input, and a stereo line input.

The NAU88C22-CEVB is a demonstration board designed to evaluate the device\'s features and functions. The evaluation board includes a pre-programmed NAU88C22 codec, built-in microphones, and on-board I2S digital audio interfaces. It also includes a data switch, filtering/amplifying sub-circuit and test points for easy debugging.

The board can evaluate the device\'s performance in 3 different application scenarios: (1) USB Audio Recording; (2) USB Audio Playback; and (3) Mic Array Application. The USB Audio Recording scenario provides a recordable and re-recordable signal from the sources connected to the input channels. The USB Audio Playback scenario provides a source signal from the PC to the playback devices connected to the board. The Mic Array Application provides an array of microphones for voice recognition applications.

The board is also designed with several features that make it easy to use and debug. The board features development switches that allow engineers to control which input signal is selected, the gain of each stage in the audio path, and adjust the clock source. It also features debug pins which allow engineers to monitor the device\'s performance and debug errors.

The NAU88C22-CEVB is an evaluation and demonstration board that allows engineers to quickly and easily evaluate the performance of the NAU88C22 low-power, stereo audio codec. It features a pre-programmed codec, on-board microwaves, twist-adjustable amplifiers, multiple debug pins, and development switches to control the input signal and gain stages. The board allows engineers to evaluate its performance in three different application scenarios, USB audio recording, USB audio playback and the mic array application, as well as make easy adjustments and debug errors.

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