[SI-LIST] Re: Do i have to use microstrip lines?
- From: steve weir <weirsi@xxxxxxxxxx>
- To: jlray2000@xxxxxxxxx, si-list@xxxxxxxxxxxxx
- Date: Sun, 15 May 2005 13:49:10 -0700
Ray, at 622mbps, the rise time is likely in the neighborhood of 300ps or
so. In 300ps, how far do you think you can go before transmission line
effects are significant? How much timing budget can you sacrifice to
reflections?
As to microstrip, the vendor is probably concerned about via stubs.
Steve.
At 10:38 PM 5/15/2005 +0800, ray jiang wrote:
>Hello all,
> I am designing a high speed board. The signal rate between two
>components is 622Mbps, according to the datasheet, i have to use
>microstrip lines whose characteristic impedance is 50Omh. If i put the
>two components very close and connect the signal line as short as
>possible, can i avoid using microstrip lines? i think this frequency
>is not so high that microstirp lines have to be used. Can any one give
>any comments and ideas? Thank you a lot!
>
>--=20
>Best Regards,
>Ray Jiang
>------------------------------------------------------------------
>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
>
------------------------------------------------------------------
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:
