[SI-LIST] Re: Emc_FTT
- From: Istvan Novak <istvan.novak@xxxxxxxxxxx>
- To: ramesh.k@xxxxxxxxxxx
- Date: Wed, 13 Sep 2006 08:23:16 -0400
Ramesh,
I assume you want to slow a fast edge with via inductance. The pad size
has very little effect. Drill size
has also just a small impact. The biggest impact is the actual length
of via used in series to the signal
between the entry and exit traces. Next biggest contributor is the
distance to the nearest return via.
With a 2-3mm long via path you may get up to a nanohenry inductance, so
achieving 10-20nH may require
a series a vias.
Regards,
Istvan Novak
SUN Microsystems
RameshK Cozerv IN HO wrote:
>
>Hi Folks,
>
>Can someone guide me,what will be the via size(Drill & Pad Size) to
>accomplish 10 to 20 nano henry drop for 5 ns rise and fall in fast transient
>time (Emc)?
>
>suggestions and advices are appreciated.
>
>-Ramesh
>
>
>#####################################################################################
>Note:
>This message is for the named person's use only. It may contain confidential,
>proprietary or legally privileged information. No confidentiality or privilege
>is waived or lost by any mistransmission. If you receive this message in
>error,
>please immediately delete it and all copies of it from your system, destroy any
>hard copies of it and notify the sender. You must not, directly or indirectly,
>use, disclose, distribute, print, or copy any part of this message if you are
>not
>the intended recipient. ConZerv Systems Pvt. Ltd. and any of its subsidiaries
>each reserve
>the right to monitor all e-mail communications through its networks.
>
>Any views expressed in this message are those of the individual sender, except
>where
>the message states otherwise and the sender is authorized to state them to be
>the
>views of any such entity.
>
>Thank You.
>#####################################################################################
>
>
------------------------------------------------------------------
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
Other related posts:
