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AD9833 square wave noise

Question asked by jcjoo on Apr 27, 2014
Latest reply on Apr 29, 2014 by jcjoo

hi

I'm using AD9833 and only need square wave output.

but square wave out of AD9833 have shaking noise

It outputs very clean square wave, MCLK/2, MCLK/4, MCLK/6...... but other frequency have noise.

Please see attatched picture.

 

6.25MHz, 2.5Mhz .. OK

8.00MHz, 2.10MHz have noise (for example)

 

Any possible solution?

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