Using the sensitivity analysis of the Si9000e transmission line field solver to achieve both differential (Zdiff) and common (Zcommon) impedance requirements
Managing Connector and Cable Assembly Performance for USB SuperSpeed
Routing Requirements for a USB 2.0 Impedance Interface on a 2-Layer PCB | Blog | CircuitMaker
AN0046: USB Hardware Design Guidelines
USB 2.0 Printed Circuit Board Design
Routing Requirements for a USB 2.0 Impedance Interface on a 2-Layer PCB | Blog | CircuitMaker
pcb design - Understanding USB Differential and Single Ended Impedance Requirements - Electrical Engineering Stack Exchange
USB 2.0 Printed Circuit Board Design
High-Speed Layout Guidelines for Signal Conditioners and USB Hubs
Should I consider my design as Stripline in USB differential pair impedance calculation? | All About Circuits
First attempt at USB differential pair routing on a 2 layer board. Acceptable?
AN 26.2 - Implementation Guidelines for SMSC's USB 2.0 and USB 3.0 Hub Devices - SMSC
Do USB Data Wires (D+/D-) have 90 ohm differential impedance and single ended 45 ohm impedance to ground and if so how is this made? - Electrical Engineering Stack Exchange