Hi all, I am running a Differential Pairs width 8 mils and gap 8mils between the + and - signal. also maintained 3W rule for all the pairs in the same layer while routing the pairs in the layout. These pair is crossing with other pair in different layers. Whether Crosstalk will be there at the crossing area? if it so how do I calculate. These Pair is basically a tip&ring signal which can go upto 22Mbps . It a 4layer card all the layers are taken up for routing.Thereis no power plane as well as ground plane in this card. Expecting your suggestion. With regards, Suresh Kumar.R ------------------------------------------------------------------ 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