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Original question:

PCM5141: I want to make an audio energy detector, and output the H or L level voltage.

PCM5141: ZERO DATA DETECT IN PCM5141

Wenting Wu
Intellectual 2190 points
Part Number: PCM5141

Hello sir,

May I ask whether the threshold of zero data can be adjusted for ZERO DATA DETECT function which when there is some noises below the threshold, the mute can be done as well?

Best regards,

wenting 

  • 0
    TI__Guru 53633 points

    Hi Wenting,

    The zero-data detection is just a digital check of the DIN pin.  If there are enough samples where DIN = 0, then the device asserts the zero data detect.  Are you looking to implement a flag if the volume is set below a certain threshold?

    Thanks,

    Paul

  • 0 in reply to Paul_Frost
    TI__Intellectual 2190 points

    Hello Paul,

    I've sent you a detail description through Email. Please help to have a look.

    Best regards,

    wenting