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I am programming an AD9910 with an Arduino Pro Mini 3.3v. 

Question asked by KU3O on Jul 5, 2017
Latest reply on Jul 22, 2017 by KU3O

I've been able to generate the sine wave of the desired frequency (100 KHz range), but there is quite a bit of jitter.  I'm not using the AD eval board (sorry!) but the board is more of a breakout board that allows access to most of the pins.  Using a 40 MHz crystal.  I want to set this up so that my students can develop a GUI to control the chip.  What could be causing this jitter?

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