We are evaluating ADF7030-1 on your evaluation kit (EV-ADF70301-915AZ).
We found spurious emissions at +/- 400kHz from the carrier frequency 922.8MHz and
the output level is -34dBm at 14dBm carrier output.
The relationship between the carrier frequency, spurious frequency and level are as follows.
Carrier freq. Spurious freq. Spurious level at 14dBm PA output
922.7MHz +/-600kHz -38dBm
922.8MHz +/-400kHz -34dBm
922.9MHz +/-200kHz -30dBm
923MHz not detected
923.1MHz +/-200kHz -30dBm
923.2MHz +/-400kHz -37dBm
923.3MHz +/-600kHz -41dBm
Could you give us the root cause of this spurious and the countermeasure?