7-port USB 2.0 hub design review

[saegsali]

Hi ModalAI team,

We are planning a 7-port USB 2.0 hub for VOXL 2, connected through J3, using the Microchip USB2517. We wanted to use this to connect more sensors and USB cameras to the VOXL 2 board.

I’m following the USB expansion guidance in the VOXL 2 Expansion Design Guide and wanted to ask:

• Do you have a reference schematic for a USB 2.0 hub connected to J3 that you could share?
• The guide mentions that ModalAI may review customer expansion-board designs. Once I have my schematic ready, would you be willing to review it before I proceed to PCB layout?

Thank you in advance!

[Vinny]

Hi @saegsali
yes, I can help with this. Sorry for the delay in responding here...
I will email you to enable the schematic transfer and review setup.
For your schematic, these items will ensure a speedy and seamless review:

• Searchable PDF
• All items annotated and page numbers correct
• Off page references if multi-page
• Caps and R's should have their ratings visible (voltages, power, values)
• A simple block diagram to help me understand what you are trying to do.

Thanks!