RE: [SI-LIST] : Split Plane

About this list Date view Thread view Subject view Author view

From: Brad Crowell (crowell@amirix.com)
Date: Wed May 24 2000 - 05:30:40 PDT


Short answer...

Around 0.4ns

Brad

> -----Original Message-----
> From: owner-si-list@silab.eng.sun.com
> [mailto:owner-si-list@silab.eng.sun.com]On Behalf Of Doug McKean
> Sent: Tuesday, May 23, 2000 6:22 PM
> To: si-list@silab.eng.sun.com
> Subject: Re: [SI-LIST] : Split Plane
>
>
> Short question ...
>
> What's the fastest edge rate?
>
> - Doug
>
> Brad Crowell wrote:
> >
> > Michael and others who have replied,
> >
> > Yes, we have included alot of ground on this board. The concern
> for EMC/EMI
> > issues is quite high for our client, this is for a medical
> application. We
> > pulled out all the stops to ensure every signal layer is referenced to a
> > ground plane, rather than a power plane, which I understand should give
> > better EMC performance. We are also trying to avoid routing on the outer
> > layers as much as possible. The stackup you attached to your
> reply would not
> > provide as much interplane capacitive coupling, which concerns me. Clock
> > rates on my board are about 100MHz max, not extremely fast but
> includes some
> > devices with pretty quick edges.
> >
> > Thanks for all the comments,
> > Brad
>
> **** To unsubscribe from si-list or si-list-digest: send e-mail to
> majordomo@silab.eng.sun.com. In the BODY of message put: UNSUBSCRIBE
> si-list or UNSUBSCRIBE si-list-digest, for more help, put HELP.
> si-list archives are accessible at http://www.qsl.net/wb6tpu
> ****
>
>

**** To unsubscribe from si-list or si-list-digest: send e-mail to
majordomo@silab.eng.sun.com. In the BODY of message put: UNSUBSCRIBE
si-list or UNSUBSCRIBE si-list-digest, for more help, put HELP.
si-list archives are accessible at http://www.qsl.net/wb6tpu
****


About this list Date view Thread view Subject view Author view

This archive was generated by hypermail 2b29 : Wed Nov 22 2000 - 10:50:27 PST