This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LMX2581 evm how to ouput good expected frenquency



dear 

    l use ti lMX2581 EVM,my input frenquency is 10MHZ,output frenquency is 1615.68MHZ, vtune voltage is 1.3v,

LD voltage  is high ;my loop parameters  setting is as follows :

l measured output frequency  in different bandwidth as follows :

the question is  output frequency is right,but the waveform is in a mess?how l can resolve 

this problem? can you give me a guidance? really emergency! thank you  very much!