RTOS/HD3SS2522: HD3SS2522 schematics issue

Hugo Wang

Expert 1525 points

Part Number: HD3SS2522

Tool/software: TI-RTOS

Hi Sir
I have a HD3SS2522 schematics issue as below.

Does the positive/negative connect way is correct or not as red mark parts?

Thanks for your great support.

over 7 years ago

0 Diego Cortes over 7 years ago

TI__Mastermind 36085 points

Hello Hugo,

The USB3.x specification allows polarity inversion, after detecting a connection, the PHY must perform a polarity detection and configure itself for the detected polarity. So no, this is not a schematic issue, you can also take the advantage of this flexibility in order to improve the layout design.

Regards,
Diego.

0 Hugo Wang over 7 years ago in reply to Diego Cortes

Expert 1525 points

Hi Diego sir

I have two questions as below.

1. How to CSBU1, CSBU2 connected with HD3SS2522?

2. How to use the reset function?

Thank you for your great support.

0 Brian Quach over 7 years ago in reply to Hugo Wang

TI__Expert 4325 points

SBU pins are not used by the HD3SS2522. You can connect SBU pins of Type-C receptacle to 1M-ohm pull-downs. You can connect RST pin to a pull-up .

Regards,
Brian

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RTOS/HD3SS2522: HD3SS2522 schematics issue