TUSB1002A: About the placement position of the TUSB1002A on the board when replacing parts from TUSB522B to TUSB1002A

Yutaka Nakano

Prodigy 10 points

Part Number: TUSB1002A
Other Parts Discussed in Thread: TUSB522P,

Hi TI team,

I plan to change TUSB522P to TUSB1002A.

I know that these two devices can accommodate similar designs.

In that case, Is it okay if the positional relationship between IC and HOST and IC and receptacle is the same?

Best Regards,

over 3 years ago

0 Malik Barton57 over 3 years ago

TI__Guru 64326 points

Hi,

Is the design moving to USB 3 Gen 2?

0 Yutaka Nakano over 3 years ago in reply to Malik Barton57

Prodigy 10 points

Hi Malik,

Thank you for your reply.

No, it isn't. The design remains USB 3 Gen 1.

Best regards,

0 Malik Barton57 over 3 years ago in reply to Yutaka Nakano

TI__Guru 64326 points

Hi,

Since TUSB1002A is a linear redriver there is no transmitter equalization (de-emphasis). In this case TUSB100A can redriver 20 inches at RX1 and 6 inches at RX2. However USB Host will need to support 20 inches of loss at its receiver. You will need to refer to the USB Host design guide to understand if this is possible.

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TUSB1002A: About the placement position of the TUSB1002A on the board when replacing parts from TUSB522B to TUSB1002A