Other Parts Discussed in Thread: DAC38J84, , TRF3705
I am measuring fairly high odd order harmonics on the output of both TRF3705 and TRF3722 on the TSW3XJ8X development board. The peak power of the harmonics is around 5 dB less than the power of the main harmonic. I connected the TRF3705 LO input to an external sine generator and the results are the same as using the LO generated on the TRF3722. I'm mixing a constant DAC output (I selected a constant output on the DAC38J84) and the problem is consistent on the whole spectrum.
I'm trying to figure out whether the article (*1) could explain this phenomenon, however I'm not confident since the LO on the TRF3722 is generated internally. Please advise what course of action to take, or whether this is expected behavior.