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PCB impedance calculator – Single ended / Differential pair

PCB manufacturer normally provides information about PCB stackup and track geometry.

In case you need to calculate single ended or differential pair impedance on your PCB, try following links:

I use Microstrip & Stripline calculator developed by Jean Nicolle. Download the file here
or directly from Jean’s website at http://www.jnicolle.com/?page=LVDS

or try this Online PCB impedance calculator at http://www.skottanselektronik.com/
This link also has a track maximum current calculator, crosstalk calculator and thermal via calculator.

One of the bests is this FREE Saturn PCB Design Toolkit: http://www.saturnpcb.com/pcb_toolkit.htm
saturn pcb