Using the high-end serial data analyser, such as Lecory SDA6000, the analyser can analyze the data jitter, and give a report about which freq. contribute most to jitter. if you only want to estimate the jitter, you can only check the eye-diagram. Peter ----- Original Message ----- From: "Zhangkun" <zhang_kun@xxxxxxxxxx> To: "si-list" <si-list@xxxxxxxxxxxxx> Sent: Wednesday, January 19, 2005 3:05 PM Subject: [SI-LIST] How to analyze jitter of data > Dear all: > Recently, I meet one problem about optic fiber. Two PCB could not correctly communicate. The measured result showed that the jtter of the optical signal is too large. Now I am measuring the spectrum electrical input of the optic module. > > If the signal is clock-like, I could analyze the jitter by checking the sideband. Currently, the signal is of data. How to analyze the spectrum in order to find out what is the reason for jitter? > > Best Regards > > Zhangkun > 2005.1.19 > > > ------------------------------------------------------------------ > 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 FAQ wiki page is located at: > http://si-list.org/wiki/wiki.pl?Si-List_FAQ > > List technical documents are available at: > http://www.si-list.org > > 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 FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org 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