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AD9129 performance question

Question asked by rgetz Employee on Feb 21, 2013
Latest reply on Feb 23, 2013 by rgetz

Someone asked me about a datasheet plot:


Datasheet shows typical performance - Figure 13. Single-Tone Spectrum at fOUT = 1000 MHz, fDAC = 2.6 GSPS,


I can see the 1GHz tone, but where does the 1.6GHz tone come from? Is that fDAC - fOUT? I assume then by turning on the 2x interpolation, and using fDAC of 5.6 GSPS, that that spur would be at 4.6GHz?