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Ramp Rate Clock and Delta Frequency word Calculation (AD9854)

Question asked by Sudhanshu on Jan 2, 2015
Latest reply on Jan 5, 2015 by LouijieC

Dear All,


Can anyone please let me know the formula/examples to calculate the ramp rate clock and Delta Frequency word in AD9854? I am not getting accurate result of delta frequency word.


The DDS Clock is 250MHz.

The required ramp rate clock is 10ns.

Delta Frequency word is 200 KHz.


Mark this question as very important as we are going into production very soon and customer evaluation is coming up.