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AD9371 ripples on ZCU 102 Board

Question asked by on May 28, 2018
Latest reply on Jun 4, 2018 by

I have created the AD9371 Linux files using Peta-Linux method generated the 5Mhz filter bit file on my FPGA (ZCU102 ultra scale board ) PLL locked successfully and we can see the filter bandwidth of 5Mhz on signal Analyzer but at the same 100Mhz bandwidth there are many more ripples which are undesirable. The bit file should pass only one channel of 5Mhz (It is coded as per this). We have configured the filters by twiking the kernel driver file(with 40 Mz changes).  Since we are observing the ripples would be the possible issue is it bit file related or kernel changes?