RE: [SI-LIST] : Delay lines

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From: Ingraham, Andrew (Andrew.Ingraham@compaq.com)
Date: Fri Jan 26 2001 - 07:50:21 PST


I believe delay lines do tend to be lossy. And the response rolls off (more
attenuation) at higher frequencies.

If you look at them with a moderately high frequency, you could indeed see
significant attenuation. Particularly if you try to push them beyond their
bandwidth limits, but even within the recommended frequency range.

If you are seeing a lot of attenuation at DC (very low switching rates so
that the waveforms fully settle), I would suspect something wrong, but even
that may depend on the termination you use on the output.

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