RE: Decoupling capacitors

["Austin Franklin" <darkroom@ix.netcom.com>]

I do not believe you can be fully PCI compliant without planes.  Anyone know
if you can?

-----Original Message-----
From: Iņigo Alvarez Ximenez de Embun [mailto:patxipatxi@jazzfree.com]
Sent: Tuesday, March 26, 2002 3:16 PM
To: PCI-SIG, Mail List
Subject: Decoupling capacitors


I'm developing a PCI board with no internal planes (only two layers). I
would like to know if the decoupling requirements listed in PCI spec. are
the same for 2 layers boards and for 4 or more layers boards (trace length,
capacitors values, etc.)
I also would like to know if, as the PCI spec says, I can use only one
capacitor for all 3.3V pins and all Vi/o unused pins.
Can anyone help me?
Thanks


Iņigo Alvarez Ximenez de Embun
e-mail: patxipatxi@jazzfree.com