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TLV320AIC3262: Does the audio path work?

Jerry Chu
Genius 4915 points
Part Number: TLV320AIC3262

Hi Expert,

Could you help to review the audio path? Does it work?

If yes, does it possible to calculate the latency? Thanks

  • 0
    TI__Mastermind 30210 points
    Hi Jerry,

    I believe this should be possible, I am not as familiar with the ASRC in the AIC3262 so I will loop in another one of our experts.

    The Group delay of the Decimation and interpolation filters is likely to be the biggest portion of the latency. These can be found in the Applications reference guide.

    For the Decimation filter A, the group delay is 17/Fs Sec

    for Interpolation filter A the group delay is 21/Fs Sec

    best regards,
    -STeve Wilson
  • 0 in reply to Steve-Wilson
    TI__Expert 6440 points

    Hi Jerry,

    In AIC3262, the secondary i2s data stream is sample rate converted and mixed with the primary i2s data stream during the interpolation stage (before the DAC). The signal flow you have described is possible. The miniDSP software for this configuration should be generated using PPS.

    Please refer to the following e2e thread - e2e.ti.com/.../2953565

    Best Regards