I am using the AD9914 Evaluation board and programming it with the Evaluation software. I want to generate a frequency sweep centered at 860 MHz with a BW=10 MHz, as can be seen in the following picture. The 25 MHz external clock is introduced from a signal generator.
Unchecking the box corresponding to one of the No Dwell bits and without having DRCTL signal, I am able to see the behaviour of a single tone:
Regarding the measurement shown in the picture I have different concerns:
1: Why I have these two spurious at 4.168 Mhz from f0?
2: Is it possible, somehow, to increase the output power?
Thank you in advance,