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DS250DF810: DS250DF810 rx over equalization problem

user4838693
Prodigy 190 points

Part Number: DS250DF810

If the retimer RX has over equalization problem, how should the parameters of retimer RX be adjusted?

  • 0
    TI__Mastermind 19235 points

    Hi,

    You may manually force CTLE = 0x00 i.e. the lowest EQ boost value. See register writes below.

    Table. Set CTLE Boost Value to 0x00

    STEP

    SHARED/ CHANNEL REGISTER SET

    OPERATION

    REGISTER ADDRESS [HEX]

    REGISTER VALUE [HEX]

    WRITE MASK [HEX]

    COMMENT

    1

    Channel

    Write

    2D

    08

    08

    Enable CTLE boost override

    2

    Channel

    Write

    03

    00

    FF

    Set CTLE boost to 0x00.

    Cordially,

    Rodrigo Natal

    HSSC Applications Engineer