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Which function is describing frequency response of sinc 3 and sinc 4 filter?

Question asked by ae_lopatin on Jun 28, 2016
Latest reply on Jun 30, 2016 by JellenieR

AD7192 have a sinc filter. In analog input we have sinusoidal signal. Chopping is disabled, 50-60Hz rejection switched off, 1 channel. I want to calibrate influence of this filter to calculate amplitude of the signal.

In datasheet we could see this figure:

Filter50Hz.png

Which function is describing frequency response of sinc 3 and sinc 4 filter?

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