TUSB7340: USB2.0 works, but USB3.0 doesn't

Allen Fernandez

Part Number: TUSB7340
Other Parts Discussed in Thread: HD3SS3212, TUSB542

We are able to get USB2.0 to work with our TUSB7340-based design, but USB3.0 doesn't work. Please let me know if you see anything wrong with this schematic that might cause USB3.0 to not work.

over 3 years ago

0 Brian Zhou over 3 years ago

TI__Guru*** 127605 points

try to replace C49/C50 with 0.33uf.

can you send full schematic?

0 JMMN over 3 years ago in reply to Brian Zhou

TI__Guru 60870 points

Also, you cannot connect the superspeed lines to both sides of the USB-C connector. You will need a mux like the HD3SS3212 or TUSB542.

0 Allen Fernandez over 3 years ago in reply to Brian Zhou

Intellectual 920 points

Here you go Brian ...

0 Allen Fernandez over 3 years ago in reply to JMMN

Intellectual 920 points

Thank you Brian.

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TUSB7340: USB2.0 works, but USB3.0 doesn't