[SI-LIST] Re: OSCILLATOR PHASE NOISE AND LEESON'S EQUATION

  • From: Paul Levin <levinpa@xxxxxxxxxxxxx>
  • To: dbengtson@xxxxxxx
  • Date: Fri, 03 Aug 2001 11:01:39 -0700

You might also want to look at "Frequency Synthesizer Design Handbook"
by James A. Crawford (Artech House, 1994.) He's got a pretty good
treatment but admits that Leeson came up with his formula "heuristically."

Incidentally, the formula that most people use is not Leeson's formula, but
Scherer's extension to Leeson's formula.

Paul Levin
Senior Principal Engineer
Logic Innovations
a Xyratex Company
_____________________

dbengtson@xxxxxxx wrote:

> It's my understanding that the whole equation is
> somewhat empirically derived. If you look at "Microwave
> and wireless Synthesizers" by Ulrich Rohde, then there
> is a realtivly good treatment.
>
> Dave
> >
> > Any suggestions where I will find the full derivation of Leeson's equation
> > for the phase noise of an oscillator? Somthing with a bit of 'Hand-Holding'
> > on the maths would be nice???
> >
> > Thanks,
> >
> > Steve
> >
> >
> >
> > Steve Rogers B.Eng (Hons) AMIEE
> > RF Design Engineer
> > Micromill Electronics Limited
> >
> > Tel: +44 (0) 23 9236 6600
> > Fax: +44 (0) 23 9236 6673
> > SRogers@xxxxxxxxxxxxx
> >
> > Micromill Electronics Limited, Leydene House, Waterberry Drive,
> > Waterlooville, Hants, PO7 7XX, United Kingdom
> > Registration No. 1456922 (England). Registered office as above.
> >
> >
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