PCM1864LMBEVM

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Evaluation and Demonstration boards and kits are often used to test, evaluate, and demonstrate a particular product or application. The PCM1864LMBEVM is an example of such a board and kit. This Evaluation Module (EVM) is designed for use with the PCM1864 Low Power Audio Codec. The board and kit include a printed circuit board (PCB), a DC power supply, and comprehensive evaluation tools and documentation. It is also equipped with a number of logic inputs and outputs, as well as access to audio inputs and outputs.

The PCM1864LMBEVM is specifically designed for applications requiring low power audio. By utilizing the HFP codec, the board’s audio performance is optimized for narrowband audio. Additionally, its low power audio operation is enabled through an integrated internal power control that supports a 5 V or 3.3 V digital power supply. With these features, the PCM1864LMBEVM is well-suited for speech recognition, voice command, and other voice activation tasks.

The default configuration of the PCM1864LMBEVM includes 24 bit audio data, with a 48 KHz sample rate. As a user, you can customize various settings such as the number of channels, sample rate, and analog reference voltages. The operation of the board is also configurable, allowing you to select between simultaneous or independent operation of the audio serial ports.

The PCM1864LMBEVM is easy to use and has been designed to minimize the work required to set up a low power audio system. The board is equipped with four push buttons which provide quick access to the various processes. The board also has two potentiometers which allow manual control of the digital signal processor (DSP) setting, which is used to adjust the gain, limiters, and equalizers in the audio chain. Furthermore, the board includes programming headers which provide an easy and reliable means to configure the DSP from an external software source.

The PCM1864LMBEVM is also equipped with connections to an external audio source, such as a microphone or line-level audio. This interface is designed to allow a direct connection of an external microphone to the board, allowing for quick and accurate testing of a low-power audio setup. Additionally, the board includes S/PDIF digital I/O and inter-IC Sound (I2S) serial port interfaces for direct connection to an external audio equipment. For further integration, the board can also be connected to a variety of audio signals, such as headphone, line-out, and line-in signals.

Working with the PCM1864LMBEVM requires no soldering or complex wiring. All the necessary components are included in the kit, with full documentation and software provided. Additionally, the board is also compatible with most major software development environments, such as IAR Embedded Workbench, Keil µVision, and CrossWorks.

The PCM1864LMBEVM board and kit offer a comprehensive and advanced solution for low power audio applications. It combines easy-to-use tools, hardware, and software to create an easy-to-deploy and low-cost solution for rapid evaluation and prototyping of audio applications. The board’s comprehensive features and robust design make it an ideal solution for a wide range of low power audio applications.

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