Sample Rate Converter with Mixer and Volume

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  • Evaluation Board Manual
  • Data Sheet


The AK4120 is a stereo asynchronous sample rate converter. The input sample rate range is from 8kHz to 48kHz. The output sample rate is fixed at 32kHz, 44.1kHz, 48kHz or 96kHz. AK4120 includes a digital mixer and digital volume control. Applications for this device include pro audio mastering, consumer format conversion and desktop audio production and playback.

Key Features

• Stereo Asynchronous Sample Rate Converter

• Digital Mixer

• Digital Volume

• Input Sample Rate Range (FSI): 8kHz to 48kHz

• Output Sample Rate (FSO): 32kHz, 44.1kHz, 48kHz and 96kHz

• Input to Output Sample Rate Ratio: FSO/FSI = 0.667 to 6

• THD+N: –113dB at 1kHz input

• I/F format: MSB justified (20bit), LSB justified (16bit/20bit), I2S

• Master clock: 256/512fs

• 3-wire Serial or I2C Bus µP I/F for mode setting

• Power Supply: 2.7 to 3.6V

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Block Diagram

Block Diagram

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