Form an SI point of view, it does not matter where along the path the capacitors are placed. > [Original Message] > From: icer world <icermail@xxxxxxxxx> > To: Sam Pete <cygnul@xxxxxxxxx>; <si-list@xxxxxxxxxxxxx> > Date: 10/21/2009 8:48:26 PM > Subject: [SI-LIST] Re: AC cap placement on Clocks > > It's hard to say where the AC cap should be placed ,so you'd better do a simulation if you have device models . > I'm in doubt that why you use the AC coupling manner since the driver and the receiver are both LVDS level. > > > > ________________________________ > From: Sam Pete <cygnul@xxxxxxxxx> > To: si-list@xxxxxxxxxxxxx > Sent: Thu, October 22, 2009 7:22:17 AM > Subject: [SI-LIST] AC cap placement on Clocks > > Hi All, > I have a situation like this: > LVDS Driver, ac cap, LVDS receiver (internal term) 156MHz clock. > |>-----------------||----------------|> > |>-----------------||----------------|> > > > What is the optimum place to put coupling cap when the clock is ac-coupled. > Should it be close to driver or should it be close to receiver. > > From my understanding, the discontinuity should not be visible to the electrical length of the signal. Having said that, ac cap should be as close as possible to Driver. > > please share your thoughts. > > Thanks > Sam > > > > > ------------------------------------------------------------------ > 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 > 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 > > > > ------------------------------------------------------------------ > 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 > 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 > ------------------------------------------------------------------ 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 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