I am just studying your DDS AD9833.
So I have a question for you.
How can I think about the secular distortion of output frequency? after 10 years, 20 years, etc.....
On your datasheet and in your homepage I could not find the rating.
It means you cannot guarantee directly, I understand.
What is your change factor?
I also saw the following your thinking.
But I could not catch the answer well.....
Maybe another products also same, I think.
Please let me know