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problem with adf4360-6 not in lock

Question asked by piluren on Aug 5, 2015
Latest reply on Aug 7, 2015 by Brigid.Duggan

hello,i designed a pcb with adf4360-6,I have a problem with adf4360-6,  i have try several days ,but it still unlock

      The ref_clock is 9.8304MHz, and the RFout that I want is 9.8304*126 = 1238.6304MHz, the N out and Rout is right,the loop filter is

desighed from simpll sortware, but it still unlock.

     i found the cp pin is pulse on  the datasheet, i attched  the cp pin output when i disconnect the loopfilter after it, is the cp pin output correct?  what is the correct cp pin output? where is the prolemmaybe  is?