In a message dated 09/15/2000 8:33:18 AM Central Daylight Time,
[log in to unmask] writes:

> Can anyone give me a formula for calculating trace to trace capacitance
given
> trace width and pitch?
>
>
>  Craig
>  Lead Design Engineer
>  TRI-C Design

Hi Craig!

I don't know the formula, but you might check out:

http://www.ifigure.com/engineer/electric/electric.htm

There's a whole bunch of online calculators there such as:

PCB Trace Impedance Calculator -- "Calculates the characteristic impedance
and per-unit-length parameters of typical printed circuit board trace
geometries." Includes microstrip, embedded microstrip, stripline and
asymmetric stripline calculators.

Impedance and Capacitance -- Microstrip, embedded microstrip, stripline and
dual(asymmetric) stripline impedance and capacitance calculators.

PCB Trace Width Calculator -- Calculate the trace width for printed circuit
boards.

-Steve Gregory-

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