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PCM1808 A to D need how many time?

Ray Hsu
Expert 1330 points
Other Parts Discussed in Thread: PCM1808

MIC->PCM1808->I2S->DSP

i need to know how many delay time from Mic in/I2S out.

i will use SW to cover the delay time, let the Call quality is the best.

thanks!

  • 0
    TI__Mastermind 28020 points
    Hi Ray,

    This metric is called the Delay Time in the data sheet and is in the Digital Filter Performance section of the Electrical Characteristics. The Delay Time (can also be called Group Delay) for the PCM1808 is 17.4/Fs seconds, Fs being the sampling rate. This means depending on your sampling rate the seconds of delay from input output will change.

    Justin