The standard for PMC should be available from www.vita.com. They
originally standardized it, IIRC. PMC might make a lot of sense.
If you want to browse for high-quality miniature connectors that
offer controlled-impedance differential pairs, try the first few sections
of Samtec catalog. I've used their stuff in quite a few designs. It's
relatively expensive, but top-notch, and they ship extremely fast, even for
items they don't have assembled in stock.
On Sat, Oct 22, 2005 at 06:35:18PM -0400, Jonathan J Smith wrote:
> Some PMC information:
>
> http://www.interfacebus.com/Design_Connector_Mezzanine_Buses.html
>
> (Note we don't need to utilize it as PCI, but the connector type is readily
> available)
>
> http://www.hypertransport.org/tech/tech_specs_conn.cfm
>
> Hypertransport connector/daughtercard (PDF Document located here).
>
> MiniPCI specification is members only or pay. I'll have to check if I have
> a copy I'm free to relate information from or not.
>
> Obviously the SODIMM and DIMM sockets are always options for a plug in
> module board. (suggest angled connectors to allow for longer boards)
>
>
> Jonathan
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Jonathan J Smith
> Sent: Saturday, October 22, 2005 5:05 PM
> To: 'Daniel Rozsny?'; [email protected]
> Subject: RE: [Open-graphics] i/o connector for OGD - request for
> requirements
> Importance: High
>
> Not sure I caught the original intent for this connector.
>
> PMC is an excellent choice for higher speed items, Mini PCI is another
> possibility, Depending on what sort of data rates your talking about we
> might even want to consider the Hypertransport type slot/connector.
>
> If the concerns if finding houses to source these for the general public
> most of these would not be an issue.
>
> All of these options support much higher data rates that an IDE header
> would.
>
> One could even utilize multiple PMC connectors.
>
> Again I didn't catch the original statement of intent for this however.
>
> LVDS is not at all a bad choice for a high-speed signaling type. Readily
> available on most FPGA and PLDs families, even transceivers are readily
> accessible, data rates can be pushed fairly high when needed.
>
> Jonathan Smith
>
>
>
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