[SI-LIST] Re: Frequency Spectrum of TIE
- From: mwilbur@xxxxxxxxxxxx
- To: si-list@xxxxxxxxxxxxx
- Date: Wed, 2 Apr 2008 09:32:35 -0400
Vysakh,
My background is frequency synthesis, so my view may differ from others: I view
TIE as what I've called "absolute jitter": the deviation of a clock signal
(however derived) from an ideal (fictitious) timebase. So, I would think you
first must recover a clock from your received data by some means (say, a CDR)
then look at the resultant zero-crossings with respect to an ideal timebase.
The short answer (about which I may not be quite correct), is that you can't
measure TIE based on data alone. You've got to recover a clock first.
Matt
Quoting "Sivarajan, Vysakh (S&T-Student)" <vshdc@xxxxxxx>:
> Hello Everyone,
>
> I am performing Jitter separation by analyzing the frequency spectrum of
> TIE. I calculated TIE by considering the zero crossing transitions of
> the received waveforms and the reference clock. My question is, in the
> points where there are no transitions of the received waveforms with
> respect to the reference clock( ie. remaining 0 or 1 for a long time)
> are we supposed to put TIE as 0 or is TIE not defined at these points ?
>
> Regards,
> Vysakh Sivarajan
> Graduate Research Assistant
> Electromagnetic Compatibility Laboratory
> Missouri University of Science and Technology
>
>
> ------------------------------------------------------------------
> To unsubscribe from si-list:
> si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
>
> or to administer your membership from a web page, go to:
> //www.freelists.org/webpage/si-list
>
> For help:
> si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
>
>
> List technical documents are available at:
> http://www.si-list.net
>
> List archives are viewable at:
> //www.freelists.org/archives/si-list
> or at our remote archives:
> http://groups.yahoo.com/group/si-list/messages
> Old (prior to June 6, 2001) list archives are viewable at:
> http://www.qsl.net/wb6tpu
>
>
>
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
List technical documents are available at:
http://www.si-list.net
List archives are viewable at:
//www.freelists.org/archives/si-list
or at our remote archives:
http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
Other related posts:
