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Phase Noise and Jitter Measurements
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plotting L(Δf ) curve (Read 3893 times)
Razer
Guest
plotting L(Δf ) curve
Oct 27
th
, 2004, 8:12pm
Hi,
To plot L(Δf ) curve of an oscillator, I use this equation:
L(Δf ) = 10^^(Phasenoise( Δf )/10)
Where Phasenoise(L(Δf )) is in dbc/Hz & is got by
the "phase noise" plot of spectrerf's PNOISE simulation for oscillator.
Is this correct or should I multiply the RHS by a factor of 2?
Thanks
Razer
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Andrew Beckett
Senior Fellow
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Life, don't talk to
me about Life...
Posts: 1742
Bracknell, UK
Re: plotting L(Δf ) curve
Reply #1 -
Nov 3
rd
, 2004, 1:33am
Your posting came out as gobbledegook. Can you resend it such that it is meaningful?
Thanks,
Andrew.
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Frank Wiedmann
Community Fellow
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Posts: 678
Munich, Germany
Re: plotting L(Δf ) curve
Reply #2 -
Nov 3
rd
, 2004, 4:46am
The Δ is supposed to be a Delta, see
http://www.w3.org/TR/REC-html40/sgml/entities.html
.
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Razer
Guest
Re: plotting L(Δf ) curve
Reply #3 -
Nov 3
rd
, 2004, 5:49pm
oops, (Δf ) is "delta f" , The offset frequency.
Thanks
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