Re: Layout examples

[EMAIL PROTECTED] (Hal Murray) writes:

> [context is bypass caps]
> 
> >I came to the conclusion that above 100-150MHz you couldn't do a lot
> >with capacitors anyway.
> 
> So what do you do then?  1 ns edge rates are reasonably common now.
> That's well above 150 MHz.
> 

Once you get above the package resonance frequency, you have to rely
on the chip vendor doing the right thing (witness the caps placed on
the package of P4 and Athlon devices for example).  I don't know what
X and A are doing about this, given the wildly varying things people
want to do with their devices at "silly" clock rates...

Cheers,
Martin

-- 
[EMAIL PROTECTED]
TRW Conekt, Solihull, UK
http://www.trw.com/conekt