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AWR1843: How to power on the AWR1843

Hiroyuki Kanematu
Expert 2975 points
Part Number: AWR1843

Do I need to follow the sequence as shown in the figure below when powering on the AWR1843?

Can you also tell me how many seconds each sequence is between?

  • 0
    TI__Guru*** 141404 points

    Please give us some time to review your question

    We will get back to you by end of the week

    thank you

    Cesar

  • 0
    TI__Mastermind 26985 points

    Hello,

    For power sequencing, all of the supplies (1.8V, 1.2V, 1.0V, 3.3V) must be stable before NRESET is released. This is the only requirement for power sequencing the device.

    In addition to the above, the only other consideration is the possibility of a glitch on the GPIO if the 3.3V supply comes up before the 1.8V supply. Please see MSS#38. It is recommended to power up 1.8V before 3.3V, and all supplies should be stable before NRST is released.

    https://www.ti.com/lit/er/swrz092a/swrz092a.pdf 

    I would encourage you to please search the forums before creating new threads. There are several other threads that already discuss the power sequencing requirements of the radar.

    Regards,

    Adrian