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Speaker/Audio In/Out

The MCB54110 board includes a speaker controlled by the low-power audio amplifier (IC34), and a low-power stereo coder/decoder (IC19) for audio inputs (AUDIO_IN) and outputs (AUDIO_OUT).

The MICbias jumpers provide a low-noise reference voltage (MICBIAS) to the right and left AUDIO_IN signals which can be used for biasing electret condenser microphones.

The LSP jumper enables and disables the on-board loudspeaker.

MCB54110 Board Speaker

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