This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS23754: Lan transformer connection of EVM

Part Number: TPS23754

Hi team,

My customer is asking about POE TPS23754 EVB

There are two different connection methods of Lan transformer in the following figure.

What are the advantages and disadvantages of each?
Which one is generally recommended?

  • Hey Ben,

    I am not sure what the differences are here? Can you explain the differences?

    The pairsets are all terminated by the proper Bob-Smith terminations; this is what we recommend. 

    I do see differences in the data side, but that is due to the PHY transformer selection. 

    More about the Bob Smith Plane is in the following application note:


    If this post answers your question, please indicate so by marking this thread as resolved. Thank you.




    Michael P.

    Applications Engineer

    Texas Instruments