Roconstruction-Filter in the ADAU1761

SigmaDSP & SigmaStudio DSP_MAXC Nov 21, 2018 00:00 3 replies Original on forum ↗

DSP_MAXC Question

Nov 21, 2018 00:00

Hello guys,

I found the ADAU1761 with internal AD-/DA-U´s. My questions, is there a reconstructionfilter in the DAU´s to restore the continious time signal?

Best Regards

Viktor

Audio Signal Processors

dsp

analog output

filter

SigmaDSP Audio Processors

adau1761

dsp filter

dac

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KJBob Reply

Nov 25, 2018 00:00

Hello Viktor,

The ADAU1761 includes oversampled digital filters for both ADCs and DACs, so no external antialias and reconstruction filters are needed. Find the specs for these filters in the data sheet:

Best regards,

Bob

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DSP_MAXC Reply

Jan 9, 2019 00:00

Thank you for your respone.

I thought digital interpolationfilter are used to lower the design expenses.

Viktor

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DSP_MAXC Reply

Jan 9, 2019 00:00

lower the design expenses for the analog filter

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