I have a HMC829LP6GE rev A evaluation board. I have removed R24 and mount R23 to use external source 100MHz.
I cannot the PLL to lock. Attached is the register settings. What could be wrong?
Thanks for your help. The Lock Detect indicator is working now.
Attached is the phase noise measurement @RFout of HMC829.
Are these the reference sidebands? Is there any way to improve it?