Hi Steve, Thanks for the reply. I have tried referring to that manual, but I could not make it, as I would like to configure different spacing between the adjacent single ended or differential traces/lines. I am not finding any such examples there. Please help me if you have any sample deck for this kind of simulations or direct me to some link where I can get some sample decks. Thanks & Regards Lakshminarayanan. S 9840250902 -----Original Message----- From: steve weir [mailto:weirsi@xxxxxxxxxx] Sent: Monday, March 21, 2011 1:16 PM To: Lakshmi Narayanan Sowrirajan, ERS-HCLTech Cc: si-list@xxxxxxxxxxxxx Subject: Re: [SI-LIST] Re: HSPICE xtalk simulation The U element is documented rather nicely in the HSPICE manual provided to all licensed users. Steve. Lakshmi Narayanan Sowrirajan, ERS-HCLTech wrote: > Hi All, > > Awaiting for your reply for the below request. > > Thanks & Regards > Lakshminarayanan. S > 9840250902 > > > -----Original Message----- > From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On > Behalf Of Lakshmi Narayanan Sowrirajan, ERS-HCLTech > Sent: Wednesday, March 16, 2011 4:20 PM > To: si-list@xxxxxxxxxxxxx > Subject: [SI-LIST] Re: HSPICE xtalk simulation > > Hi HSPICE Experts, > I need a help on using U element for X-talk simulations. > > With the SP parameter in the U model definition we will be > able to define the distance between the conductors. Please let me know how we > can specify different spacing between each conductor. Refer below > configuration for the same. > > L1-L2 => 4mils > L2-L3 => 8mils (2x spacing) > L3-L4 => 4mils > > Basically I would like to have x-talk simulation for two > differential pairs (1,2 & 3,4) with different spacing, say 2X, 3X & 4X. > Please let me know how I can do this with the U element or any other elements. > > U1 208 216 109 106 0 105 102 111 108 0 micro1 L=0.076200 > > .model micro1 U LEVEL=3 PLEV=1 DLEV=1 ELEV=1 LLEV=1 NL=4 wd=0.0001524 > ht=0.000254 th=0.00003556 thb=0.00003556 SP12=0.0001016 SP13=0.0003048 > SP14=0.0004064 KD=4.2 > > > I have used the above command lines. But even by varying the SP13 I am not > seeing any change in the x-talk voltage at node 108 & 111. Differential > stimulus is driven at 208 & 216. > > > Thanks & Regards > Lakshminarayanan. S > 9840250902 > > > ________________________________ > ::DISCLAIMER:: > ----------------------------------------------------------------------------------------------------------------------- > > The contents of this e-mail and any attachment(s) are confidential and > intended for the named recipient(s) only. > It shall not attach any liability on the originator or HCL or its affiliates. > Any views or opinions presented in > this email are solely those of the author and may not necessarily reflect the > opinions of HCL or its affiliates. > Any form of reproduction, dissemination, copying, disclosure, modification, > distribution and / or publication of > this message without the prior written consent of the author of this e-mail > is strictly prohibited. If you have > received this email in error please delete it and notify the sender > immediately. Before opening any mail and > attachments please check them for viruses and defect. > > ----------------------------------------------------------------------------------------------------------------------- > > ------------------------------------------------------------------ > 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 > > 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 > > Old (prior to June 6, 2001) list archives are viewable at: > http://www.qsl.net/wb6tpu > > > > -- Steve Weir IPBLOX, LLC 150 N. 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