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level deviation In QDUC mode of AD9957

Question asked by nearlaya on Sep 13, 2016
Latest reply on Sep 15, 2016 by nearlaya

Good afternoon!

 

Tell me, please, how to calculate the level of deviation in QDUC mode AD9957 when using a parallel IQ quadrature signal? I understand that when clocked 1GSPS level deviation will 1,000,000,000 Hz / ( 1 ^ 32 of FTW) * ( 1 ^ 18 of IQ) = 61,035 Hz with frequency  resolution 0,23 Hz -  right? Is it possible to make the width modulation more?

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