Hi,
Calculating line impedance take the distance of the trace from it reference plan e.g. VCC,VDD, GND as one of the factor influencing the impedance.
My questions are:
1 Which Reference plan it is best to refer VCC,VDD,GND "?". What are the factors I should take into consideration ?
2 How to refer to a trace between 2 reference plan e.g. VDD, VCC (not GND) ?
3 Is there an educated article on that subject ?
Thanks.
Yitzhak Revach
R&D Engineer
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