Audio Codec Board - PROTO

Audio Codec Board - PROTO

The Audio Codec Board - PROTO is a development tool for the WM8731 Audio Codec, ideal for use in embedded applications which require audio playback. The on-board Audio Codec WM8731 provides stereo line and mono microphone level audio inputs. This module also uses stereo 24-bit multi-bit sigma delta ADCs and DACs with oversampling digital interpolation and decimation filters. Stereo audio outputs are buffered for driving headphones from a programmable volume control. Line level outputs are also provided along with anti-thump mute and power up/down circuitry. The device is controlled via 2 wire (I2C) or 3 wire (SPI) serial interface.

Technical Specifications


Board is an indispensable tool for creating your audio device with audio input and output capabilities.

Key features

  • Hi-Quality Audio Performance
  • Selectable ADC High Pass Filter
  • ADC and DAC Sampling Frequency: 8kHz – 96kHz
  • SPI or I2C communication interface
  • Headphone and Microphone audio connectors on-board

Operating Voltage

Board is designed to use 3.3V power supply only. Be careful to use voltage translators on communication lines when connecting it to 5V systems.

Key Benefits

  • The board also enables you to easily build your audio device.
  • Connection pads are available for easy connection.
  • Board is clearly marked, which makes it easier to connect with external electronics
  • Cost-effective solution.


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Audio Codec Board - PROTO


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