TUSB320: EMI Considerations

JDJ

Part Number: TUSB320

Hi!

We are concerned about EMI noise in the audible frequencies over the USB type C cable between two boards. .

Do we have any app notes for EMI considerations for type-c?

If you have any suggested topology, target frequency, and/or filter circuitry, then please let me know.

Thanks!

0 Brian Zhou over 4 years ago

we don't have any specific app note for it, but proper ESD and common mode chock can help EMI issue

0 JDJ over 4 years ago in reply to Brian Zhou

Hi Brian,

Can you recommend inductance for the common mode choke in reference to signal speed?

Would the below figure show the recommended set up for USB3.0 and a type C connector from System Level ESD Protection Guide?

Thanks!

0 JDJ over 4 years ago in reply to JDJ

Adding figure as it does not appear to show in the previous email.

0 Brian Zhou over 4 years ago in reply to JDJ

ESD device look good.

For common mode choke, pls check here:

Interface forum