Recently I evaluated AD9954 and AD9854.
Under the same condition, I use DFT to test the stability of their output signals. But I alwalys found that the stability of AD9954 output can only reach 0.07%~0.04%, while the stability of AD9854 output can normally achieve 0.013%~0.004%. When I read the datasheet of each chip, I thought the stability of AD9954 can`t be so obviously worse than that of AD9854.
Sincerely hoping someone can provide ideas.