I have configed HMC983 as a stand-alone fractional divider. Then I want to realize the frequency sweeper function, but it does not work.
I kept the RF input frequency at 3 Ghz, and test the divided output frequency. I have followed the configuration sequence on page 22 of the datasheet, as shown in the picture. I would like to config the HMC983 in a automatic 2-way sweep mode. But the output frequency does sweep. Do I need to config the TRIGER function? Is there any other register I have to write? Can you tell me the correct register configuration steps or provide an code example?
The following is the configuration employed in my design: