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AD9789 how was the filter  (page 41 of AD9789) acheived

Question asked by VicZ Employee on Apr 13, 2017
Latest reply on Apr 28, 2017 by danf

1. The filter (page 41 of AD9789) mask is related to J.83, Annex C; the mask for the J.83, Annex B is not published in the standard and I am curious how they did this filter.

                      

 

 

 

 

 

  How many taps filter has and (if possible!) to get coefficients values.

 

 

 2.On the page 42 AD9789, in the formula (1): fDAC = I x (P/Q) x 16 x fBAUD, how they get 16?

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