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Differential Pair Impedance

Estimate how paired trace geometry affects differential impedance.

Input parameters

Range: 0.001 to 20
Range: 0.01 to 10
Range: 0.1 to 105
Range: 2 to 10
Range: 0.001 to 20

Results

Confirm the finished stackup with your PCB fabricator.

Model & assumptions

Zdiff = 2Z0[1 − 0.48 exp(−0.96s/h)]. Z0 uses the surface microstrip equation.

Edge-coupled surface microstrip estimate using the same geometry limits as the single-ended tool. Not a stripline or field-solver model.

Sources

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