Re: gEDA-user: Compiling MMI (electromagnetic simulator)

[Daniel Nilsson <daniel@xxxxxxxxxxxxxxx>]

On Tue, Dec 14, 2004 at 10:32:27PM -0500, Dan McMahill wrote:
> > On Tue, Dec 14, 2004 at 09:21:28AM -0500, Dan McMahill wrote:
>  
> I'd say it depends on your definition of "modern electronics".  It seems
> like in your case you specifically mean high speed digital lines.

Well, yes... That's what keeps the paychecks coming...

> There are plenty of other cases of interest.  A very low noise analog 
> line which needs to be high impedance for some reason or another.
> Capacitive gauge read electronics for example.  I've also seen cases
> where coupling to a plane and bypassing a filter hurt ultimate rejection.
> 
> So while I agree that with high speed digital lines, total capacitance is
> not what you want, there are other circuits still around!

This is where I can see how it matters, that's why I started out
asking why he needed to know the information about the total trace
capacitance :-)

-- 
Daniel Nilsson