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Hello,
We measured the phase noise on LMX2581EVM default condition. There is ~10dB phase noise difference between simulation and measurement. Please refer the attached file.
10 -60 100 -90 1000 -125 10000 -140 100000 -145
The excel file is the simulation and measurement result. The left-side of simulation is on-board 100MHz oscillator is used case.
The oscillator phase noise is to read from CWX813 datasheet and input as the attached text file.
Best regards,
Toshihiro Watanabe