ADAU1777 SINC Filter Characteristics?

ADI,

We are using the ADAU1777 CODEC for our audio implementation program. We have enabled the 4th Order Filter registers as seen below:

These are registers 0x1B and 0x1C set to 0x00. We have plotted the filter characteristics and they seem to be as below:

Our intent is to find out what the characteristics of the SINC filter are, the ADAU1777 datasheet does not list characteristics for the SINC filter and we would like to have that documented, is there any possibility you can provide us with filter characteristics?

Thanks again,

Pablo.

codec

filter

Integrated/Special Purpose A/D Converters

sigmastudio

sinc

adau1777

Audio CODECs

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