[SI-LIST] Re: High Speed Routing
- From: "Lee Ritchey" <leeritchey@xxxxxxxxxxxxx>
- To: "Scott McMorrow" <scott@xxxxxxxxxxxxx>, ponganesh@xxxxxxxxxxxxxxxxxx
- Date: Wed, 30 May 2007 12:03:37 -0700
Touche!
> [Original Message]
> From: Scott McMorrow <scott@xxxxxxxxxxxxx>
> To: <ponganesh@xxxxxxxxxxxxxxxxxx>
> Cc: <si-list@xxxxxxxxxxxxx>
> Date: 5/30/2007 10:47:39 AM
> Subject: [SI-LIST] Re: High Speed Routing
>
> Pon,
>
> Go out and do your own research before you pose a plethora of questions
> like this. It looks like you are a University student trying to answer
> questions on a take-home test.
>
> Scott
>
> Scott McMorrow
> Teraspeed Consulting Group LLC
> 121 North River Drive
> Narragansett, RI 02882
> (401) 284-1827 Business
> (401) 284-1840 Fax
>
> http://www.teraspeed.com
>
> Teraspeed® is the registered service mark of
> Teraspeed Consulting Group LLC
>
>
>
> Pon Ganesh wrote:
> > Expecting your answers for the below.
> > a.. I have two groups of signals Group-A (3GHz differntial pair) and
Group-B (16bit, 250MHz DDR2 single ended lines). Both A&B can't be routed
in inner layers. Either one must be routed on Microstrip. Which one u ll
route in Micro strip (Single ended-250Mhz/diff3Ghz) ?
> > b.. Whats the use of dual stripline, when no.of layers is not a
issue.,
> > c.. why don't u prefer odd-no of layers ? ( answers other than... PCB
warpage, Fab feasilbility and Cost)
> > d.. U have 20MHz and 200MHz signal on a same layer. How ll u route .
Isolation ?
> > e.. How stitching capacitors are useful to minimize in-rush current
> > f.. When ll u use spoke vias. whts the disadvantage of spoke vias
> > g.. Why do we noramlly short isolated Analog and Digital digital GNDs
on a small area
> > Thanks,
> > Pon Ganesh
> > **************** CAUTION - Disclaimer *****************This email may
contain confidential and privileged material for the
> > sole use of the intended recipient(s). Any review, use, retention,
distribution or disclosure by others is strictly prohibited. If you are not
the intended recipient (or authorized to receive for the recipient), please
contact the sender by reply email and delete all copies of this message.
Also, email is susceptible to data corruption, interception, tampering,
unauthorized amendment and viruses. We only send and receive emails on the
basis that we are not liable for any such corruption, interception,
tampering, amendment or viruses or any consequence thereof.
> > *********** End of Disclaimer ***********DataPatterns ITS
Group**********
> >
> >
> > ------------------------------------------------------------------
> > 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
Other related posts:
