[SI-LIST] Re: Jitter Tolerance
- From: steve weir <weirsi@xxxxxxxxxx>
- To: ralf.inova@xxxxxx
- Date: Thu, 18 Mar 2010 03:04:58 -0700
ralf, you should be safe with limiting total jitter to:
DC < F < 22kHz: Tj < 9.05 UI pp
22kHz < F < 1.9MHz: Tj < (9.15 - F*4.47E-6)UI pp
F >1.9MHz: Tj < 0.65 UI pp
Steve.
ralf.inova@xxxxxx wrote:
> Dear Experts,
>
> I found the following Jitter Tolerance Specification for XAUI:
>
> Receiver must be able to tolerate this much jitter
> DJ : 0.37 UIp-p
> DJ+RJ : 0.55 UIp-p
> SJ : additional SJ (on top of DJ+RJ) to limit of mask…
> -> 8.5 UI < 22.1kHz
> -> 0.1 UI > 1.875MHz (linear fit between these points)
>
> legend:
> DJ : Deterministic jitter (includes residual ISI, duty-cycle error, etc.)
> RJ : Random jitter – uncorrelated with any source
> SJ : Sinusoidal jitter
>
> Is there any formula or rule of thump, how much SJ the receiver must
> tolerate, if one could reduce the DJ and RJ to neglegible values?
>
> Thanks in advance,
> Ralf
>
>
--
Steve Weir
IPBLOX, LLC
150 N. Center St. #211
Reno, NV 89501
www.ipblox.com
(775) 299-4236 Business
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