I think that must be placed in critical length. As you know the critical length is calculated from rise/fall time. Good luck. Inmyung Song. -----Original Message----- From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Adeel Malik Sent: Friday, August 02, 2002 3:05 PM To: si-list@xxxxxxxxxxxxx Subject: [SI-LIST] Series Termination Hi All, Can someone tell me about the crude approximation as to how much close the series terminating Resistor for a device should be placed. The approximation would of course include the rise time of the driver, its switching frequency, propagation delay of the trace and logic levels. Regards, ADEEL MALIK ------------------------------------------------------------------ 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 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 ======================================================================== Ŭ¸°Ä·ÆäÀÎ !!¡¦¡¦..±ú²ýÇÑ eMAIL ȯ°æÀ» À§ÇÏ¿© ¢Ñ http://www.cleanspam.co.kr ComTrue Technologies, 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 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