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?