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Re: Simulation models for HMC699 (PLL) with HMC583 (VCO)

Question asked by avilla on Oct 28, 2016
Latest reply on Dec 2, 2016 by huangzeyan
Branched from an earlier discussion

Hi Huangzeyan,


Thank you very much for your useful answer.

I have still a couple of questions:


1) Which is the best opamp you may suggest to keep the phase noise as low as possible?


2) I am missing the reason why the phase detector gain is set to 2 V/rad in the main window. This is my reasoning:

a) Each port of the phase detector balanced output (UN and UD) swings 2 Vpp for 2pi radians. The balanced signal should thus swing 4 Vpp for 2pi radians, thus approx. 0,64 V/rad. Where am I wrong?


Thanks again and best regards.


Forum admin note, this question was branched from:

Simulation models for HMC699 (PLL) with HMC583 (VCO)