[SI-LIST] Re: Jitter measurement
- From: Paul Levin <levinpa@xxxxxxxxxxxxx>
- To: greg.e.inchauspe@xxxxxxxx
- Date: Thu, 29 May 2003 15:24:30 -0700
Dear Greg,
Take a look at some of the application notes on the Wavecrest web site. They
make some terrific jitter measuring equipment and really understand the subject.
Also, you might want to take a look at some of the jitter documents created by
ANSI's T11 Fibre Channel Committee (www.t11.org).
Regards,
Paul
_________________
Inchauspe, Greg E wrote:
> I am trying to measure the jitter contributed by a card in my system. The
> clock input on the card is driven by an Anritsu BERT generator. My card
> under test sends the input clock to a simple two stage buffer without any
> PLL's. I can measure the jitter on the clock out of the Anritsu and I can
> measure the jitter on the clock out port on my card with an Agilent 86100
> scope. The question is: is it a simple subtraction process, (jitter out -
> jitter in = jitter contributed by my card) since the jitter has both
> deterministic and random components?
>
> Greg
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--
Paul Levin
Senior Principal Engineer
Xyratex Storage Systems
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