Hi,
I have to you the following question: I have two different Physical Classes. One is e.g. for 100Ohm diff pairs and the other one is for 50Ohm single ended lines. Let's say that diff pairs are 5 mils with 5mils spacing and that 50Ohm is 7mils. How can I now create the classes under the BGA so that the diff pair will be resized to the 4 mils tracks with 4 mils spacing and 50Ohm single will be resized to 5mils?
Regards,
Krzysztof