TUSB1046A-DCI: Clarification regarding data rate supported by crosspoint switch

Srilakshmi P

Part Number: TUSB1046A-DCI
Other Parts Discussed in Thread: TUSB1064

Hi,

We are using TUSB1046A-DCI in our application. We want to use 2 SS lanes for DP port for connecting display and 2 SS lanes(from type C connector) for USB data. As per datasheet, each DP lane supporting 8.1Gbps. So two DP lanes data rate is 8.1Gbps * 2 = 16.2 Gbps and USB 3.1 Gen2 supports 10Gbps. As per this, my understanding is that we need to have Thunderbolt enabled Type C connector at the source to provide this high data rates. Please let us know my understanding is correct. If thunderbolt is not the option, which type of USB can be used at the source? Please let me know if you have any questions.

Thanks in advance.

over 6 years ago

0 David (ASIC) Liu over 6 years ago

TI__Guru**** 179476 points

Srilakshmi

TUSB1046A supports DisplayPort over Type C, not Thunderbolt.

Thanks
David

0 Srilakshmi P over 6 years ago in reply to David (ASIC) Liu

Prodigy 70 points

Dear David,

Thanks for your support.

My understanding is that we can use any host (In our case: i7 pocket PC) which can support USB 3.1 and Display port data over USB type C connector. Is it correct?

Regards,

Srilakshmi

0 David (ASIC) Liu over 6 years ago in reply to Srilakshmi P

TI__Guru**** 179476 points

Srilakshmi

For your application, you should use TUSB1064, not TUSB1046. TUSB1046 is only used on the source side, while TUSB1064 is used on the sink side.

If host supports USB 3.1 and DP Alt mode over Type C , depending on the PD controller implementation, TUSB1064 will work from functional perspective. We will then need to evaluate signal integrity from system perspective.

Thanks
David

0 Srilakshmi P over 6 years ago in reply to David (ASIC) Liu

Prodigy 70 points

Thanks you David.

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TUSB1046A-DCI: Clarification regarding data rate supported by crosspoint switch