we are having no lock getting the synth LMX2592 to lock on any frequency on our prototype. We have copied the same design from the eval board. We can get it locked on the eval board but not on ours.
We can write all registers and read back all and the difference between two boards is highlighted in the 2 images attached. Basically registers R68, R69, and R70 (which are read back only) are different between eval board and our prototype
. Those has to do with VCO_SEL (we think the none of the internal VCOs are locking to any wanted freq for some reason).
