Edi, your understanding of C' is fine, but your conclusion is not quite
right. Think in terms of impedance continuity.
Steve.
At 09:01 AM 11/28/2005 +0200, Edi Fraiman wrote:
>Hello experts,
>
>I have question regarding formula C'=3D Cline + NCload/length and Z' =3D
>(L/C')^1/2 ("A Handbook of Black Magic" Paragraph 4.4.3.1).
>
>If I design trace with several loads than according to the formula I can
>conclude next statement:
>Longest trace cause of reducing in total capacitance C' and increase the
>Z'.
>
>So, long trace help to driver drive loads (impedance is larger).
>I fill confuse, everyone knows that long trace is not good for SI.
>=20
>Could you please clear me this issue?
>
> =20
>
>Best Regards,
>
>Edi Fraiman
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