I have a ADF4351 board,Now I want to Use The PN9000 Phase Noise measuring instrument to Measure The Phase Noise of FreeRun VCO,But I don't konw How to Let ADF4351 VCO work at FreeRun State. and test which pins
Apply a fix voltage to the Vtune pin.
if I want to Measure the 2.2GHz signal's Phase noise, Did I measure the voltage in the Vtune pin when The PLL is locked, then use the Voltage to the Vtune pin ?
Thanks for your reply
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