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TLK1221: Normal ethernet interface?

Obinna Ezeilo
Intellectual 2385 points
Part Number: TLK1221

Hi team,

My customer is considering  TLK1221 as a high speed bus interface. However they, cannot see how it’s connected to the real wires. 

1. Should it be considered as a normal ethernet interface with only 2 diff. pairs? Meaning, add magnetics on the line.

2. Do you have a example circuit to transport the encoded data for 20 meters over UTP?

Thanks, 

Obinna.

  • 0
    TI__Mastermind 19235 points

    Hi,

    The TLK1221 is not intended for BASE-T applications.

    Cordially,

    Rodrigo Natal

    HSSC Applications Engineer

  • 0 in reply to Rodrigo Natal
    TI__Intellectual 2385 points

    Hi Rodrigo, 

    My customer wants to have a high speed link around 600-700MHz with low latency. Because they transmit a lot of power on the 1000MHz (1030 & 1090MHz to be exact). So, a normal gigabit transceiver will use 1000MHz and that’s not wanted.

    Also, half duplex is required to make things easier in VHDL & and have a fixed latency. Hence additional two questions: 

     

    1. Based in the above, can you suggest other chipsets to convert the high speed signals to UTP CAT 5e (or 6 if needed)?

    2. What’s wrong with the TLK1221?

    Thanks for the support, 

    Obinna. 

  • 0 in reply to Obinna Ezeilo
    TI__Mastermind 19235 points

    Hi,

    1. Based on TI documentation available I don't see anything supporting TLK1221 implementation in UTP Cat-5e applications. These applications usually require BASE-T PHY layer function as well as regulatory compliance testing specific to Cat 5 standard interfaces. It does not seem like this TLK device was designed or tested for it.
    2. You may consider the TI product below

    Cordially,

    Rodrigo