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PCM1681: I2C SCL Frequency

Fery Feng
Intellectual 2270 points
Part Number: PCM1681
Other Parts Discussed in Thread: PCM1690

Hi team,

Could you please help to double check if the maximum I2C Clock of PCM1681 is 100KHz?

Thanks

  • 0
    TI__Mastermind 28075 points
    Hi Fery,

    Your initial reading of the datasheet was correct. The maximum I2C frequency that the PCM1681 can reliably support is 100 kHz. We don't specify the device outside of that communication frequency. If you are looking for an 8-channel audio DAC with faster I2C communication, the PCM1690 is able to support up to 400 kHz.

    Best Regards,
    Brandon Fisher