Yes, I agree -- less couplig gets more discontinuity. The one thing
your note doesn't say is the impedance of a single line over that gap.
That value is VERY large. The discontinuity for a dif'l pair is still
much less than for a single-ended line. (I calculate the glitch from a
50 mil split plane gap under that 100 ohm dif'l pair is equivalent to
the effect of a parasitic shunt capacitance of less than 0.1 pF (but
opposite polarity, of course).)
Regards,
Mike
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Mike Jenkins Phone: 408.433.7901 _____
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