PCM2902CEVM-U

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The PCM2902CEVM-U evaluation and demonstration board is a useful tool for analyzing and demonstrating audio codecs. The board is equipped with a powerful eight-channel digital-to-analog converter (DAC), which is capable of generating high-fidelity audio output. The board also has built-in amplifier circuitry, allowing users to drive speakers with low power-consumption.

The PCM2902CEVM-U board works on the premise of pulse-code modulation (PCM). This type of modulation is used to encode information as a sequence of discrete values, which are then transmitted over a signal channel. In an audio codec, PCM is used to encode an audio signal into digital bits that can be sent over a communications channel or stored in a file or memory. The receiving end can then decode the digital bits back into an analog signal.

To implement this approach, the PCM2902CEVM-U board uses a powerful combination of analog and digital signals. The analog signal is first processed by a low-noise analog input stage. This input stage encodes the analog signal into a digital bit stream with an 8 kHz sampling rate. This digital bit stream is then fed to the high-performance, multi-channel digital-to-analog converter (DAC) of the board. The DAC converts the digital bit stream into an analog signal, which is then processed by a high-performance, low-noise output stage.

The board also supports the use of a variety of different digital signal processing (DSP) filters, such as low-pass, high-pass, band-pass, shelving, and equalizer filters. This allows for greater flexibility in terms of sound quality and type of sound being generated. Furthermore, the board comes with an optional graphic equalizer control, which provides an intuitive graphical interface for easily adjusting the frequency content of the sound.

The PCM2902CEVM-U evaluation and demonstration board allows for the evaluation and demonstration of high-fidelity audio codecs in a convenient, user-friendly package. The board’s combination of analog and digital signals, DSP filtering, and optional graphic equalizer control allows users to accurately and easily evaluate and demonstrate audio codecs.

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