Hello,

AD9914 phase resolution seems to be 16 bits, as it is written in 1st paragraph of datasheet AD9914 rev.D.

But in this document, page 19 of 48, the equation of deltaPhi is 2 * Pi / 2^14, is it an error ? It should be 2*Pi/2^16 no ?

On the same page, figure 30, phase control offset is 16 bits wide at the diagram input, but it is only 14 bits at the additionner input ! Is it the same error ?

Thank you in advance.

Yes, you are correct. It is an error in the data sheet.

On page 19 of the data sheet, the exponent in the denominator of the "delta-theta" formula should 16 (not 14) and Figure 30 should have "16" above the phase adder (not 14).