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ADF4159 high speed ramp

Question asked by Newpp on Jun 13, 2017
Latest reply on Jul 4, 2017 by dyoung1



I am sing ADF4159 in my RF design. I want to realize a high speed FMCW ramp.

The time between each frequency hop is 0.1us = 100ns

Suppose the reference clock is 100Mhz, so fPFD is 100Mhz as well.


Is it possible to realize this fast ramp in ADF4159 in terms of chip itself, loop filter, bandwidth, and stability??


Anyone is welcome to answer this question!