I'm working with your Evaluationboard ADF4355-1, the ADF4355 is mounted.
RFoutA is 500MHz, VCO out is 4000MHz, Vtune = 2.557V.
The output RFoutA is ok, Phase Noise is ok.
Changing the Charge Pump Current I see the changes in the Phase Noise.
But I can't measure any bias at Pin22, Rset. I have removed the resistor (4k7) and the Phase Noise was the same (datasheet: Rset: Bias Current Resistor. Connecting a resistor between this pin and gnd sets the charge pump output current).
In earlier times I have used the ADF4350. Here I could measure the bias voltage 0.5V with Rset = 4k7. What is the mistake?
Many thanks for your efforts.