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Stripline traces can be routed as microstrip for multilayer board ( Internal traces only )

Hey,

We are routing 4 different impedances in one of our designs, that is 75, 150, 60 and 120.

As far as top layer concern, reference plane is second layer but PCB layer 3 and 4 are impedance control layers and their reference plane are 5th and 1st for specific impedance. PFA reference stack-up.

Please find impedance table,

How can I route signals on 3rd and 4th layer as impedance controlled ( 75 and 150 ohms signals are the major concern).

Schulz Jordan over 3 years ago

Based on stackup information, the layer based impedance is auto calculated which i believe will auto set layer 3 and 4 to have 75 & 150ohms.
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