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Tx spurious of AD9361

Question asked by jhshin on Jan 28, 2016
Latest reply on Feb 10, 2016 by jhshin

My customer observed TX spurious of AD9361 along offset 30.72MHz as shwon below.

So, I did a comparison test using FMCOMMS3-EVB and ZC706 and confirmed spurious in the evaluation board as below.

  - Filter FIR Conf : LTE10 enable

  - TX LO Freq : 2132.5MHz

  - DDS Mode : DAC Buffer Output (LTE10.mat)


Please tell me cause and solution of the above spurious.