TUSB1146: Can I connect USB and DP signals to DP0 to DP3 pins of the IC

Zhonghui Xu

Expert 5445 points

Part Number: TUSB1146

Hi team,

Can I connect USB and DP signals to DP0 to DP3 pins of the IC.

Which Protocol's Equalization will be applied when the lines are connected.

Thank you very much for your help.

Best regards,

over 3 years ago

0 David (ASIC) Liu over 3 years ago

TI__Guru**** 176721 points

Hi,

SSTX/SSRX connects to USB -> SSEQ

DP0-3 connects to DP -> DPEQ

TX/RX1 and TX/RX2 connect to the Type-C connector -> EQ

Thanks

David

0 Zhonghui Xu over 3 years ago in reply to David (ASIC) Liu

TI__Expert 5445 points

Hi Liu,

Thank you for your help.

Best regards,

0 Zhonghui Xu over 3 years ago in reply to David (ASIC) Liu

TI__Expert 5445 points

Hi Liu,

Thank you for your help.

Can you clarify that If I use DP0 to DP 3 lanes for connecting USB 3.2 Lines will it work? and is there any specific reason for providing 2 Equalization settings for DP and USB Lanes? DPEQ, SSEQ?

Best regards,

+1 David (ASIC) Liu over 3 years ago in reply to Zhonghui Xu

TI__Guru**** 176721 points

Hi,

Can you clarify that If I use DP0 to DP 3 lanes for connecting USB 3.2 Lines will it work?

No,

The USB3.2 (SSTX and SSRX) must be connected to a USB PCH and the DP[0:3] must be connected to a DP source. Since the USB and DP may have different trace length, separate EQ is provided for ease of tuning.

What is the end application here?

Thanks

David

0 Zhonghui Xu over 3 years ago in reply to David (ASIC) Liu

TI__Expert 5445 points

Hi Liu,

Thanks a lot for the response.

It helps me .

Best regards,

Interface

Interface forum

TUSB1146: Can I connect USB and DP signals to DP0 to DP3 pins of the IC