TFP410: Vswing and RTFDAJ range.

Hiroaki Yuyama TED said:

Is there a recommended protection diode (TVS) for the DVI output of TFP410?

I would prefer something with high speed and low stray capacitance, but do you have any recommended part numbers?

We recommend the TUSB3FR4 as a high speed ESD diode. 

Hiroaki Yuyama TED said:

Do you have a Vswing graph of the resistance value until RTFDAJ opens?

We d not have a graph of the of the TFADJ r value and output swing, but we have the following relationship.

400mV swing  = 500Ohm

600mV swing = 515Ohm

Pithadiya-san,

Thank you for your answer.

Thank you for the part number of the TVS diode for DVI output.
We understand the RTFDAJ resistance value and Vswing range.
We will communicate this to our customers.

Best Regards,
Hiroaki Yuyama

Hey Hiroaki,

TUSB3FR4 is the part name for the ESD diode

Best,

Vishesh Pithadiya

Pithadiya-san,

Thank you for your reply.

By the way, regarding the ESD diode part number, I couldn't find TUSB3FR4 as a TI part number.
Cross-reference search | TI.com
If you have a link for TUSB3FR4, please let me know.

Customer system connections are TFP410 → DVI cable → TFP401 → FPGA → TFP410 → DVI cable → Monitor

If the TFADJ of the first stage TFP410 is changed from 510Ω to 300Ω, the noise will be reduced.

Best Regards,
Hiroaki Yuyama

Here is the the link. The TUSB3FR4 is not a TI device unfortunately.

https://www.digikey.com/en/products/detail/nexperia-usa-inc/PUSB3FR4Z/5216193

Hi,Pithadiya-san,

Thank you for searching for the ESD diode part number.
I will introduce this ESD protection model to my customers.