|
[si-list]
||
[Date Prev]
[03-2007 Date Index]
[Date Next]
||
[Thread Prev]
[03-2007 Thread Index]
[Thread Next]
[SI-LIST] Re: DecapPlacement
- From: Jory McKinley <jory_mckinley@xxxxxxxxx>
- To: sreekanthn@xxxxxxxxxxxxxxx, si-list@xxxxxxxxxxxxx
- Date: Mon, 12 Mar 2007 21:53:21 -0700 (PDT)
Hello Sreekanth,
Rules of thumb are dangerous here and should be used as a starting point only
(such as layered cap size from VRM to IC's) since resonances can be tricky. I
would strongly consider using a tool like Siwave, Sigrity, Optimal or your
choice to find your boards resonances and therefore decoupling cap placement.
Remember board decoupling strategies are only effective up to a point and a
very good understanding of the package(s) and on-die parasitics is critical.
-Jory
Sreekanth N nampoothiri <sreekanthn@xxxxxxxxxxxxxxx> wrote: Dear Group,
How much ll be the bad effect if we place a decap in the
opposite side of the mother IC,if the design is in 200+ MHz range?
Do we have any rule of thumb regarding the decap
handling?
Best Regards,
Sreekanth N Nampoothiri
------------------------------------------------------------------
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:
http://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:
http://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
Jory McKinley
McKinley Consulting
e-mail: jory_mckinley@xxxxxxxxx
phone: (508)624-7103
---------------------------------
Don't pick lemons.
See all the new 2007 cars at Yahoo! Autos.
------------------------------------------------------------------
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:
http://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:
http://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
|
|
