Hello, I have routed an LVDS signal with 12mils width and 40 mils spacing.........These vlues were calculated to get a differential impedance of 100 ohms with teh stackup that I am using. I am using the LVDS at 33Mhz max. I have not done th SI analysi on the signal so I dont know the effect. Would this be a cause for concern. Also could someone tell me where I could find some good document on x-talk. Please let me know as soon as possibe. ------------------------------------------------------------------ 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 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