Hi team,
Here is a question one of our customers is experiencing, could you please provide some troubleshooting suggestions?
When using the LMX2820, the output of the charge pump is as shown in the figure, locking is not detected, and the frequency of the output is somewhat different from my target. What could be the cause?
In addition, my loop filter is consistent with the EVM board, the reference clock signal is a differential signal, Vpp=400mV. Thank you in advance.
Best Regards,
Amy Luo
