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How to set the filter of PCM1863?

Other Parts Discussed in Thread: PCM1863

Hi engineer

Can I set the filter range of PCM1863 freely,as I want to get the range of 400-8000Hz,but the datasheet makes me confused.

 In the datasheet,I just get the address,but what the value and what the value map to frequency?

Sincerely.

  • Hi Zhang,

    These are 1,23 biquad coefficients and therefore can be created with any biquad calculator that supports 1.23 foramt. You can search for biquad coefficient calculator on ti.com. We have on in our GUI if you go into the secondary ADC on the Block Diagram tab.

    Justin