hmsheng
Full Member level 4
Deal all,
Do you know how to simulate phase noise of frequency synthesizer?
I simulate it with @DS linear method, but the simulate result is 10dB better than measured result.
In phase noise simulation, all blocks phase noise are included (they are crystal oscillater, reference divider, PFD/CP, LPF, VCO, loop divider). The simulated in-band phase noise is -90dBc/Hz, but the measured in-band phase noise is -80dBc/Hz.
Can someone tell me what cause the difference between simulated and measured results?
Best regards,
hmsheng
Do you know how to simulate phase noise of frequency synthesizer?
I simulate it with @DS linear method, but the simulate result is 10dB better than measured result.
In phase noise simulation, all blocks phase noise are included (they are crystal oscillater, reference divider, PFD/CP, LPF, VCO, loop divider). The simulated in-band phase noise is -90dBc/Hz, but the measured in-band phase noise is -80dBc/Hz.
Can someone tell me what cause the difference between simulated and measured results?
Best regards,
hmsheng