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DAC8760: Power Up sequence

Koji Ikeda
Expert 6405 points
Part Number: DAC8760


Hello support team,

My customer inquires power up sequence. They can't satisfied the 7sequence AVDD, DVDD in turn or DVDD first then AVDD within 50usec. What happen if improper power up sequence?

DAC8760 might send reset command to SPI BUS, can DAC8760 work normally after the command?

Thanks,

Koji Ikeda   

  • +1
    TI__Guru* 98145 points

    Ikeda-san,


    I don't know of a specific list of possible problems that might occur with a bad power up sequence. However, even in the paragraph that you clip out, it states "TI recommends that a software reset command be issued via the SPI bus after both AVDD and DVDD are stable." This implies that even if the power supplies are not brought up in the proper sequence, the reset command may be able to set proper operation.


    Joseph Wu