[SI-LIST] Re: differential trace mismatch
- From: Doug Brooks <doug@xxxxxxxxxx>
- To: htmguy@xxxxxxxxx,"'si-list@xxxxxxxxxxxxx'" <si-list@xxxxxxxxxxxxx>
- Date: Tue, 31 Jul 2001 12:43:09 -0700
See also Doug Brooks' article
Differential Signals, The Differential Difference
available through the Articles page at
www.ultracad.com
Doug Brooks
At 10:46 AM 7/30/2001 -0700, Mellberg Hans wrote:
>A question;
>
>on a LVDS differential pair trace running 622MHz
>clocks, I am using 10 mils as my trace length
>differential maximum. This occurs at the footprint of
>the package for routing purposes. Is this reasonable
>or am I being too strict?
>Second question, again at the package footprint the
>differential pair must separate to attach to the via
>array. What is a reasonable maximum length the traces
>can be without maintaining the 100 Ohms? is 25 mils
>reasonable?
>Thanks in advance
>Hans Mellberg
>
>__________________________________________________
***********************************************************
Doug Brooks' book, "Electrical Engineering for the Non-Degreed Engineer is
now in its 3rd printing. Learn about it at www.ultracad.com
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