Differencial pair - 90 Ohm ... 150 Ohm

[Jefferson]

Guys someone solved the problem of how to set the line thickness for different wave impedance for differential pairs of wires? Board thickness is known.

[Jefferson]

https://www.eeweb.com/tools/edge-coupled-microstrip-impedance
Here you can set size or values and get the result for the wave resistance of different structures and other.
How to set these sizes in Eagle for differential pair?

[alexwhittemore]

https://www.autodesk.com/products/eagle/blog/route-differential-pairs/
The gist is:
1) for every diff pair, name one side abcdefg_P and abcdefg_N.
2) Create a "net class" of, for instance, "USB"
3) In the routing rules for that net class, set "differential, 7mil/5mil" (or whatever your calculated trace/space is)
4) use the "route differential pair" tool (right-click the usual "route" button).
5) Route your pair where you please.
6) At the ends, if you need to, switch to the single-ended tool, and you can finish off the nets individually at whatever trace width you like. This is how you neck down into a connector, join a thinner pad, etc.

[Jefferson]

How to make a differential pair has been clear for a long time. How to set the impedance for this pair? Unfortunately this isn't done. It's required to use third-party programs for calculation. And for 4+ layers this isn't easy task.

[ebastler]

How to make a differential pair has been clear for a long time. How to set the impedance for this pair?

Well, you did ask (in two separate posts) how to "set the size" and "set the line thickness". That's what Alex explained. Thanks Alex!

[Jefferson]

There is no way to set the wave impedance of the line, the differential pair for my PCB stack. This requires third-party programs.