TUSB1210: Recommendations for good layout / EMC performance?

Martin Seeger

Part Number: TUSB1210
Other Parts Discussed in Thread: TUSB1211

Dear Team,

our customer was facing issues with a different device of another supplier and considers to use our TUSB1210 in combination with a Zynq FPGA.

The other device was failing the EMC tests (Class B) and so he asked us if we have some documents which help to have a good performing layout to avoid a 3rd HW iteration.

I saw that the data sheet has layout guidelines, but maybe there are more information / tips & tricks?

Thanks and best regards
Martin

over 8 years ago

0 Jorge Llamas (SWAT) over 8 years ago

TI__Expert 7395 points

Hello Martin,

Thank you for your preference.
Besides the observations on the layout section of the datasheet, I would recommend to place the TUSB1210 as close as posible to your FPGA and try to match the length of the ULPI lanes.
Additionally please check the following post with additional recommendations:

e2e.ti.com/.../400531

Regards,
Jorge

0 Martin Seeger over 8 years ago in reply to Jorge Llamas (SWAT)

TI__Expert 5411 points

Hello Jorge,

thanks a lot for your answer.
The documents which are attached to the post / link you share, are rather talking about the TUSB1211 in BGA package.
Is the package the only difference between the x10 and x11, so that we can apply the similar characteristics to our request?

Thanks and best regards
Martin

0 Jorge Llamas (SWAT) over 8 years ago in reply to Martin Seeger

TI__Expert 7395 points

Hello Martin,

That is correct; there are some differences between the TUSB1210 and TUSB1211 both in packaging and features (TUSB1211 has support for Battery Charger Detection, OTG2.0, ACA, SOF; REFCLK is 1.8V), but the same layout guidelines can be applied.

Regards,
Jorge

0 Martin Seeger over 8 years ago in reply to Jorge Llamas (SWAT)

TI__Expert 5411 points

Hi Jorge,
thanks for the answer. Keeping you posted if I have follow up questions.
Best Regards
Martin

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TUSB1210: Recommendations for good layout / EMC performance?