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Fractional-N synth phase noise measurements (Read 3492 times)
benbassa
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Posts: 2
Fractional-N synth phase noise measurements
Jan 31
st
, 2005, 5:53am
Hi,
Does any one have an idea how to simulate the phase noise of a fractional-N synthesizer in spectre ?
I read somewhere that since its not periodic the simulator fails to converge.
Thanks,
Assaf,
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Jitter Man
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Am I? Or am I so
sane that u just
blew your mind?
Posts: 50
Re: Fractional-N synth phase noise measurements
Reply #1 -
Jan 31
st
, 2005, 10:52am
It is not easy, but it is also not impossible. You can read about it in "Modeling jitter in PLL-based frequency synthesizers" in
http://www.designers-guide.com/Analysis/
.
Jitter Man
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benbassa
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Re: Fractional-N synth phase noise measurements
Reply #2 -
Jan 31
st
, 2005, 11:26pm
Thanks,
But I was looking for a direct way so the real devices will be simulated.
Not to use a model for simulation.
Assaf,
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