Currently, I've got a new claim that ADF4159's output frequency is affected by mux_out signal.
I set the muxout's ramp time to 250us as the below
Then I can figure out the 4Khz frequency with muxout frequency.
What if I turn mux out off then I can get the clean frequency but If turn on, then I get the muxout affected output frequency.
How do I get clean output what is does not affected by mux out?