TUSB212: TUSB212 D2P shorted to D1N design

Richard Li

Prodigy 180 points

Part Number: TUSB212

Hi there,

Datasheet says D2P must be shorted to D2N and D1P must be shorted to D1N on PCB.

my question is if this connection will bypass TUSB212 redriver?

thanks!

over 4 years ago

0 David (ASIC) Liu over 4 years ago

TI__Guru**** 176136 points

Hi,

No, this allows the board designer to create one PCB board which can be populated with or without the USB2 redriver, depending on the performance needs. The board can be assembled initially without a redriver mounted. If the system were to initially fail the compliance testing, then the redriver can be easily populated on the PCB board to achieve instant compliance without the need to re-spin the board,

Thanks

David

0 JMMN over 4 years ago

TI__Guru 60870 points

Hello Richard,

Please note that D2P should be shorted to D1P, and D2N should be shorted to D1N. This does not bypass the redriver. The status of the device can be read using the CD and ENA_HS outputs.

Regards,

JMMN

0 Richard Li over 4 years ago in reply to David (ASIC) Liu

TI__Prodigy 180 points

Hi David,

understood.

thanks for your comment!

Regards

0 Richard Li over 4 years ago in reply to JMMN

TI__Prodigy 180 points

Hi JMMN,

thanks, my typo

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TUSB212: TUSB212 D2P shorted to D1N design