Tobby Posted August 28, 2021 Report Share Posted August 28, 2021 Hi, there. Use the 25 MHz reference frequency that comes with the ADF4351 evaluation board, and the output frequency is 1422 MHz. The parameter design is shown in the figure below: Using the output frequency of the spectrum analyzer, Span is set to 100 Hz, VBW and RBW are automatically set, and the frequency is found to randomly jump within a range of tens of Hz near 1422 MHz. Excuse me, what is the frequency resolution of the ADF4351? Can the ADF4355-3 solve the problem? Thanks for the answer. Quote Link to comment Share on other sites More sharing options...
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