DoesAre standard USB connectors are Impedance controlled? DoesDo they follow differential characteristic impedance of 90 Ohm for DM & DP lines?
Does standard Type A, Mini / Micro - USB Type follow same impedance match from PCB? Or Characteristic impedance changes at connector pins?
If they follow;follow, how they manage to do so? As there is no ground / reference plane on USB connector to get this impedance.