[time-nuts] Calculating phase jitter from phase noise - appnote by silabs
SAIDJACK at aol.com
SAIDJACK at aol.com
Fri May 11 19:02:00 UTC 2012
Hi,
here is a very nice and easy to use online calculator for doing exactly
this:
_http://jittertime.com/resources/pncalc.shtml_
(http://jittertime.com/resources/pncalc.shtml)
bye,
Said
In a message dated 5/11/2012 09:17:30 Pacific Daylight Time, lists at rtty.us
writes:
Hi
Be very careful with all these phase noise to jitter conversions. They make
some assumptions about the "noise" that are likely true, but may not be.
The
gotcha is that a normal noise measurement does not take phase data. Without
the phase data you really can't properly do the reconstruction. You have to
assume that it's random in the phase domain.
Bob
-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Azelio Boriani
Sent: Friday, May 11, 2012 11:28 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Calculating phase jitter from phase noise -
appnote
by silabs
And one from HP/Agilent (taking into account the "colored noise" too:
http://cp.literature.agilent.com/litweb/pdf/5990-3108EN.pdf
And one from Fordahl, with the random zero cross consideration:
http://www.metatech.com.tw/doc/appnote-fordahl/e-AN-02-3.pdf
On Fri, May 11, 2012 at 4:00 PM, Jim Lux <jimlux at earthlink.net> wrote:
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