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LO Harmonics

Question asked by s.kannan on Oct 25, 2017
Latest reply on Oct 26, 2017 by mhennerich

I'm using picozed SDR1x1 (ADRV1CRR-BOB AD9364) and testing the board with IIO Oscilloscope. The Tx port A is connected to RTSA and the Tx LO frequency is 70MHz with input one tone CW of 10MHz.

In the spectrum analyzer I'm witnessing the odd harmonics (+ or -) CW tone. But the difference in the power level between these harmonics is merely 2db . Is this scenario, common or something is wrong with my setup?

I also attached the snapshot of the spectrum.

Is there any option available in ad9364 itself to suppress these harmonics?