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RE: Approaches for PCI Overvoltage design using 3.3volt technology
- To: Mailing List Recipients <pci-sig-request@znyx.com>
- Subject: RE: Approaches for PCI Overvoltage design using 3.3volt technology
- From: Lars Stjernestam <rlylast@rly.abb.se>
- Date: Tue, 25 Feb 1997 8:11:04 MET
- Cc: pci-sig@znyx.com
- In-Reply-To: <9702250556.AA15242@nasse>; from "Magnus Homann" at Feb 25, 97 6:56 am
- Resent-Date: Tue, 25 Feb 1997 8:11:04 MET
- Resent-From: pci-sig-request@znyx.com
- Resent-Message-Id: <"guUbH.0.XB4.-1f4p"@dart>
- Resent-Sender: pci-sig-request@znyx.com
Homann says:
> On another subject; has anyone build a motherboard and added discrete diodes
> to the bus? As I understand it, they could (in theory) be effective when
> you have the host-pci bridge in one end, and a lot of empty slots in the
> other. A couple (hundreds?) of BAV99 (probably faster needed) to reduce
> over/undershoot when unpopulated?
In CompactPCI, we use Texas 74S1053, Shottky diode arrays.
Works fine.
In CompactPCI there is even more of this problem, due to the fact that there
are 8 slots in the (passive) backplane.
Regards Lars Stjernestam, Omicron Ceti AB, Sweden.
rlylast@rly.abb.se
www.omicron.se
¸ L
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