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TXB0104: TXB0104 Source-series termination Recommendation?

Jack Zhang
Intellectual 520 points
Part Number: TXB0104

Tool/software:

Hello,

I am using TXB0104 for voltage level translation of I/O between two microcontrollers operating at 3.3V and 3.0V. Are there any output source-series termination recommendations to maintain trace impedance of 50 ohms? Thanks.

  • 0
    TI__Mastermind 30596 points

    Hi Jack,

    This is dependent on the impedance of your transmission line faced at the outputs of the TXB0104. Generally speaking, it it practical to size series resistors strong towards weaker values to get appropriate match. This app note documents this further: www.ti.com/.../scea147.pdf
    Regards,

    Jack