[SI-LIST] Re: trace configuration ??
- From: "Michael J. Degerstrom" <degers@xxxxxxxxxxxxxxxxxxxx>
- To: Robison_M@xxxxxxxxxxxxxx
- Date: Tue, 12 Mar 2002 20:41:44 -0600
Mike,
Not sure why you have two parallel caps other than to get a specific
value that is not available as one component.
You do NOT want to split the trace at the coax launch. The wiring
will create an effective 25 ohm path (assuming 50 ohm wiring).
Keep the caps adjacent to one another as close as pcb
assembler will allow. Then bring one pcb route to the
mid-point of the caps and T off to both caps while keeping
the T lengths as short as possible. Use this approach
for both sides of the caps.
I hope I interpreted your question correctly.
Mike
Robison Michael R CNIN wrote:
>hello,
>
>me again! very specific question. i got that 576MHz sine wave
>coming onto the board thru a coax. it goes thru two parallel caps
>to wash out the dc. do i daisy chain the trace from the coax to
>one cap and then another? or do i run two traces out from the
>sine, one to each cap? or does it even matter? i've got every-
>thing within a few tenths of an inch of each other.
>
>i can think of reasons for either way.
>
>thanks, miker
>------------------------------------------------------------------
>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
>
>
>
--
Mike Degerstrom email: degers@xxxxxxxxxxxxxxxxxxxx
Advanced Signal Integrity Design, LLC http://www.advancedsidesign.com
Phone: 507-289-2900 Fax: 507-280-0052 Cell Phone: 507-254-4448
316 6th Street SW; Rochester, MN 55902
------------------------------------------------------------------
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:
