[SI-LIST] Re: Serpentine switchback lengths
- From: "S. Weir" <weirsp@xxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Mon, 11 Jun 2001 01:56:28 -0700
Senthil, I think you are referring to the dispersion caused by coupling
adjacent legs of a serpentine. Dr. Johnson offered a rule of thumb, but
not a hard formula. The more parallel legs, and / or the longer the
parallel legs are, the greater the risetime degradation.
Regards,
At 02:38 PM 6/11/01 +0500, you wrote:
>In Howard johnson article on serpentine delays. For 1ns rise time signal
>the maximum useful coupled-switchback length is arrived as
>about 1 in. (2 in. round trip). Is this 1inch; Is the width of
>serpentine structure ? or the total length of U ?.
>Please let me know.
>Thanking You
>Senthil Selvam.V
>
>
>
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