TUSB212: TUSB212: Query on TUSB212IRWBR Max length supported on Pre and Post channel

Ramesh Arumugam

Part Number: TUSB212
Other Parts Discussed in Thread: TUSB216-Q1

Thanks for the response. Can you please confirm what is the Maximum Pre channel and Post channel length supported by this TUSB212 Redriver .

Thanks

over 2 years ago

+1 David (ASIC) Liu over 2 years ago

TI__Guru*** 139305 points

Hi,

You can use this table as a reference.

Thanks

David

0 Ramesh Arumugam over 2 years ago in reply to David (ASIC) Liu

Prodigy 40 points

Hi David.

Thanks for the response. Can you please share Maximum Pre channel and Post channel length supported by this TUSB212 Redriver in inches for Layout design.

We are using Type4 (2-6-2+) stackup with EM390 material. Thickness of board is 0.7mm.

Thank you

0 David (ASIC) Liu over 2 years ago in reply to Ramesh Arumugam

TI__Guru*** 139305 points

Hi,

Due to the nature of our USB 2 redriver solution there is no specific insertion loss (in dB) that accurately corresponds to a particular boost setting of the device. Please find the rough estimates below for AC boost provided by TUSB216-Q1. These numbers are based on eye diagrams in the datasheet and are all typical values.

AC Boost at 240MHz (typ)
Boost 0: 3.0 dB
Boost 1: 3.5 dB
Boost 2: 4.7 dB
Boost 3: 5.2 dB

You can also used the cable length in the app note I sent as a reference.

Thanks

David

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TUSB212: TUSB212: Query on TUSB212IRWBR Max length supported on Pre and Post channel