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TXB0104: Asking for 1.8V to 3.3V I2S level shift

SHH
Mastermind 32146 points
Part Number: TXB0104

Hi Team,
Customer has the 1.8V I2S output from main chip. The digital amp level is 3.3V.
So could I confirm with you that customer can use TXB0104 for 1.8V to 3.3V level shift design?

Thanks,
SHH

  • 0
    TI__Mastermind 30025 points
    Hello SHH,

    TXB0104 can be used for I2S. Just be sure to follow the datasheet recommendations regarding trace length and load capacitance found in section 8.3.3 and ensure that the driver can source/sink at least 2mA of current.
  • 0
    Guru 316690 points
    This might be possible, depending on the speed and drive strength required.

    The TXB devices have weak output drivers as a consequence of the automatic direction sensing. In general, when you do not actually need automatic direction sensing, you should use a unidirectional or direction-controlled level shifter.

    How many signals? In which direction? At what speed?