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AD9364- Harmonics in TX

Question asked by navin_kumar on Oct 12, 2017
Latest reply on Oct 13, 2017 by navin_kumar

We are using AD9364 in ZYNQ platform. We are mixing 1MHz single tone with an  RF carrier of  99MHz. Apart from the main tone at 100MHz,  we observe  LO harmonics of  300MHz, 500MHz. We have also observed the same problem for all  carrier frequencies. Screen shots  of the configuration  settings as wells as the transmitter  spectrum captured on a spectrum analyzer are attached . In the spectrum plot , it can be seen that  the undesirable  harmonics at 300MHz and 500MHz are only  about 12dB and  18dB respectively   below the desired output.

Please suggest how this situation can be rectified ?  Configuration SettingsTX_Spectrum