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DP83867IS: Design review

JH Shin
Guru 11960 points

Part Number: DP83867IS

Hello,

My customer requested TI's review of the circuit for the DP83867ISRGZ.

Please review the customer's circuit below to ensure there are no problems.

TI_PHY_DP83867ISRGZ.pdf 

Additionally, does the DP83867ISRGZ have MDI Auto polarity functionality? Is it correct for users to enable Mirror mode for MDI Auto polarity?

image.png

Thank you.

  • 0
    TI__Mastermind 25421 points

    Hi JH, 

    Below are my comments:

    1. Please ensure MDIO has a pull-up to VDDIO. 
    2. 
    Is there a reason why R44 has 150ohm resistor?


    JH Shin said:
    Additionally, does the DP83867ISRGZ have MDI Auto polarity functionality?

    DP83867 does not have auto polarity detection functionality. In mirror mode, polarity is flipped. 

    In addition, the customer can refer to our schematic checklist if they want to check on their own also. 

    Best,
    J