Re: [SI-LIST] : Physcially-small far-end LVDS terminations?

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From: Lee Ritchey (leeritchey@earthlink.net)
Date: Sat Dec 18 1999 - 08:05:41 PST


Why do you need the capacitor? Why not a single 100 ohm resistor?

Lee

Eric Goodill wrote:

> Hi,
>
> I want to use the typical LVDS termination where you have two 50-ohm resistors in series placed between the two lines of the LVDS diff. pair and also have a cap at the junction of the resistors to ground. I have a jillion LVDS pairs to terminate at a high-pin-count ASIC, and I'm looking to squeeze more terminations per square inch. (There's no hope of putting the terminations inside the ASIC at this point.) I'm hoping some company makes a single three-pin part the has those two resistors and a cap even if not specifically for termination use.
>
> How about any other ideas for even higher density?
>
> Regards, Eric
> --
> Eric Goodill
> Siara Systems, ericg@siara.com
>
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