Now, I am using AD9129. The sample clock is 2.4GHz, and this clock is generated by ADF4350.
In order to test the performance of the AD9129, I generate a 600MHz signal, the output signal is as follow:
In the above figure, there are three signal: 600MHz, 1800MHz, 1200MHz
The power of the 1200MHz signal is bigger than the datasheet.
Why the spur performance can not achieve the best?
Thanks ,best wishes!