reference design on cascading usb hubs..

natesh bhardwaj

Prodigy 70 points

can u provide any reference design on cascading usb hubs.

over 13 years ago

0 Elias Villegas M. over 13 years ago

TI__Guru* 76130 points

Hello,

We don't have a reference schematic for this, but the solution is pretty straight forward, you have to maintain the differential impedance(33 ohm series resistor), the 15K pull-downs and the edge control capacitors.

See the below picture.

Feel free to contact us for any issue.

Regards.

0 natesh bhardwaj over 13 years ago in reply to Elias Villegas M.

Prodigy 70 points

Thanks for ur reply.......

Can we connect all the ports of an usb hub with usb hubs to increase the number of ports.

i hav attached a block diagram. Is it possible to connect in that fashion.

4645.HUB CASCADE.pptx

0 DHarmon over 13 years ago in reply to natesh bhardwaj

TI__Genius 16430 points

Answered here: http://e2e.ti.com/support/interface/digital_interface/f/130/t/150977.aspx#546477

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reference design on cascading usb hubs..