Differential Impedance calculator will calculate single-ended and differential impedance for the common configurations we all deal with:
Microstrip
Embedded Microstrip
Stripline
Edge-coupled Asymmetric Stripline
Broadside-coupled Asymmetric Stripline
Given a value for impedance, it will (in most cases) calculate the other variables we need during the design process. So it will help answer questions like:
What width trace do I need to hit a 75 Ohm differential impedance?
How far apart do my planes need to be?
How sensitive is my design to variations in Er?
Will a change in trace thickness impact my design?
