This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

AICPUREPATH_STUDIO: Component for PDM input

Part Number: AICPUREPATH_STUDIO

Hello,

I am trying to evaluate a digital PDM microphone using TLV320AIC3253EVM-K. I have attached the microphone to J6 of the evaluation kit.
Now I am trying to create a process flow using PurePath Studio, but I am not able to find any appropriate input component for PDM input. There are analog and I2C input components, but no PDM input component. Please advise me which component should I choose for PDM input.

Thanks and Best Regards,
Jagrit Arora

  • Hi, Jagrit,

    From PPS point of view, there is no specific input block for PDM application, it uses the DecXxIn component as the input from the ADC or Digital mic interface. This is because the ADC back-end filters are shared with the digital mic interface. For an application with PDM mic input, you need to configure the system settings code on PPS for digital mic application.

    Best Regards,

      -Diego Meléndez López
       Audio Applications Engineer

  • Hi Diego,

    Thanks for this information.
    Could you please guide me where can I find the System Settings Code on PPS ?

    Best Regards,
    Jagrit Arora
  • Hi Diego,

    I found the System Settings Code on PPS and configured it for PDM microphone input. It works fine now. Thanks a lot for your help. I am really grateful to you.

    Best Regards,
    Jagrit Arora