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AD9371 tx signal is not good

Question asked by jobsa on Dec 28, 2017
Latest reply on Jan 1, 2018 by Vinod


   now ,  I use NO-OS mode to configure ad9371.  TX can work in DDS mode ,but the signal is not very good . TX's VCXO is 2550000000Hz, siganl's freq is  2555000000Hz. the picture show the signal.  How can I do to reduce the second peak which is less -40dB to the main siganl