---------- Original Message ---------------------------------- From: "Mike Greim" <mike.greim@xxxxxxxxxxx> Date: Tue, 15 Nov 2005 09:36:26 -0600 Thanks for the reply Mike! >Depending on the nature of the memory channel, for >instance, number of dimms, total ranks and the >distribution thereof, the viability of the interface >can be held together with for lack of a better phrase, >spit and scotch tape. LOL. This is a fully embedded "~SODIMM on board". No connectors. So in pure "crosstalk contribution" I'll save a bit here... >It is therefore fairly common >for constraints to be employed that enhance noise margin. >Cross talk may be a contributing factor, but it is also >common for DQS to be packaged separately such that a >different termination scheme is desired. I can indeed appreciate this. However I'm less worried for missing this "handle" (separately adjusting res. values) than a possible crosstalk issue. >[...] >You may also want to consider a different rpack size as >mfg cost may be increased due to the small size of the >package. Yes, I realize that there is a limited amount >of space to implement the termination scheme for this >channel I'm currently looking for the addional space for splitting the 0804 quads into 0404 duals. So I'm definitely not going to larger packages. (A viable option (that I dislike) is discrete 0201 resistors)... >Best of luck. Thanks! (Praying luck won't be necessary ;-) Cheers, Anders >Best Regards, > >Michael Greim >Platform Engineering >Newisys, Inc. ------------------------------------------------------------------ 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