I have important questions to ask about ADF4159 frequency synthesizer.
How fast does a "fast ramp" generate from ADF4159?
What is the definition of fast and low speed FMCW ramp generation on the datasheet?
Take the ADF4159 EVM board for instance:
The reference clock: 100MHz
so fPFD = 100MHz
Time per step: CLK1 x CLK2 x (1/fPFD). Since CLK1 or CLK2 must be greater than 1, so I take CLK1 = 1, CLK2 = 2.
Timer = 2/(100Mhz) = 1/ (50Mhz), frequency = 50Mhz
Will this generate fastest ramp for this example???
Waiting for any good answers!!!