[SI-LIST] Re: Terminating a branched clock line
- From: "Moran, Brian P" <brian.p.moran@xxxxxxxxx>
- To: "'kevinlfitzgerald@xxxxxxxx'" <kevinlfitzgerald@xxxxxxxx>,si-list@xxxxxxxxxxxxx
- Date: Fri, 12 Apr 2002 10:04:34 -0700
Kevin,
This question comes up every now and then and I always have to through in my
2 cents. I prefer to use two seperate termination resistors at the source in
order to isolate the receivers from each other, even in cases where the
traces are tuned to identical lengths. It's also easier to accurately
terminate two individual 50 ohm traces, than two parallel 50 ohm traces.
Brian P. Moran
Signal Integrity Engineer
Intel Corporation
brian.p.moran@xxxxxxxxx
-----Original Message-----
From: kevinlfitzgerald [mailto:kevinlfitzgerald@xxxxxxxx]
Sent: Friday, April 12, 2002 8:12 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Terminating a branched clock line
Hi,
I have a clock signal with a 1ns rise time which is distributed to 2
parts. The 50 Ohm lines are matched length within +/-50 thou after
the branch. Our concern lies with the source termination. Should the
source termination be before the branch, or immediately after the
branch ?
Any thoughts,
Thanks,
Kevin
------------------------------------------------------------------
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
------------------------------------------------------------------
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
Other related posts:
