hello Cuong, a few DC IR drop tools support multi-board analysis, so what you want to do is well supported commercially cheers, -Brad Brim Sigrity > -----Original Message----- > From: si-list-bounce@xxxxxxxxxxxxx > [mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of Cuong P Nguyen > Sent: Tuesday, March 02, 2010 7:08 PM > To: si-list@xxxxxxxxxxxxx > Subject: [SI-LIST] Simulating SI and PI through a "passive" backplane > > Content-Type: text/plain; > charset="us-ascii" > Content-Transfer-Encoding: 7bit > Anyone has any comments on simulating crosstalk on high speed > diff pairs running through a "passive" backplane? > > The topology is as follow: > > > > 1. The driver resides on board #1. > > 2. This board connects to a passive backplane with only > connectors. > No other components (incl. decoupling) > > 3. The receiver is on board #2. > > > > My question is really on the effects of the GND and PWR > planes (on the passive backplane) on the diff pairs and > > whether or not the crosstalk analysis will be accurately modeled. > > > > For Power Integrity Analysis, if the driver is on 1st board > and receiver is on 2nd board and there are 2 connectors > > in between (with many pins inter-connecting the PWR and GND > of the back plane to the PWR and GND of the > > 1st and 2nd board), how will the DC drop analyzed? > > > > Thanks for your feedback. > > > > ---------------------------- > > Cuong Nguyen > > <http://www.edadirect.com/> edasmall2 ------------------------------------------------------------------ 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