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AD9910 reference ground for input signal

Question asked by harrycheung on Feb 14, 2013
Latest reply on Feb 14, 2013 by sitti

Does digital output in AD9910 implies voltage output? If yes, should I allow these pins, e.g. pin 55 SYNC_CLK, to float or ground them? Is the input signal with reference to AGND or DGND? I am building a board in single tone mode, so I don't need to use the parallel ports (D and F). Should I ground these unused input pins to AGND or DGND?

 

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