Hi all, I would like to have your valuable suggestion regarding this Stackup. This is basically a E1 transportor Card ( Telecom Application) Top GND ----------------------------------------------------------------------- Layer -3 ( E1 2M clocks , 100Mhz clk, 133Mhz clk, 60Mhz clk) Layer- 4 (Others signals) PWR Complete plane ----------------------------------------------------------- Layer-6 (others signals) Layer-7 (E1 2M clocks , 100Mhz clk, 133Mhz clk, 60Mhz clk, 60Mhz Bus,GMII) Gnd ---------------------------------------------------------- Layer 9 ( E1 2M clocks , 100Mhz clk, 133Mhz clk, 60Mhz clk,Gig) Layer 10 PWR (Split plane) -------- --------------- ------------- Bottom Stackup is done withrespect to 50 Ohm( 5mils width) impedance for single ended signal and 100 ohm for differential (5mil with 8 mil spacing) With Regards, Suresh kumar.R Thanks & Regards, Suresh kumar.R --------------------------------- Click here to donate to the Hurricane Katrina relief effort. ------------------------------------------------------------------ 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