Impedance calculation - Multi Circuit Boards
USB 2.0 Printed Circuit Board Design
USB trace impedance calculations, with termination resistors - Electrical Engineering Stack Exchange
pcb design - Understanding USB Differential and Single Ended Impedance Requirements - Electrical Engineering Stack Exchange
ON Semiconductor Is Now
USB Impedance / PCB impedance calculation - Electrical Engineering Stack Exchange
Questions regarding impedance matching of USB - Layout - KiCad.info Forums
ON Semiconductor Is Now
USB trace impedance calculations, with termination resistors - Electrical Engineering Stack Exchange
pcb design - Advice for 90 Ohm traces of a USB 2.0 HUB - Electrical Engineering Stack Exchange
ON Semiconductor Is Now
Routing Requirements for USB 2.0 on a 2-Layer PCB | Blog | CircuitMaker
USB Differential Pair Trace width and Spacing Calculation | Forum for Electronics
HD3SS6126 USB 3.0 和USB 2.0 差分开关2:1/1:2 多路复用/解复用器datasheet (Rev. A)
AN 26.2 - Implementation Guidelines for SMSC's USB 2.0 and USB 3.0 Hub Devices - SMSC
High-Speed Interface Layout Guidelines (Rev. I)
Trace Impedance
differential pair trace impedance calculations | Forum for Electronics
PCB layout: Selecting the track width and spacing for a differential signal
The stackup for 90 ohms impedance for USB | Weller PCB
