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TI Home » TI E2E Community » Support Forums » Digital Signal Processors (DSP) » OMAP™ Processors » OMAP-L13x, AM1x and C674x Processors Forum » AM1707: power consumption on +1.8V power rail
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  • AM1707: power consumption on +1.8V power rail

    AM1707: power consumption on +1.8V power rail

    This question is not answered
    tung ngo
    Posted by tung ngo
    on Jun 14 2012 05:39 AM
    Prodigy210 points

    Dear,

    AM1707: What is the power consumption of +1.8V rail in three case below:

    1. Using USB2.0 OTG only
    2. Using USB2.0 OTG & USB1.1
    3. USB functions are not used.

    Thanks

    Tung

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    • Mukul Bhatnagar
      Posted by Mukul Bhatnagar
      on Jun 14 2012 13:47 PM
      Mastermind24420 points

      Hi

      You should be able to deduce this by going through the power consumption summary wiki and the power estimation spreadsheet for AM17xx

      http://processors.wiki.ti.com/index.php/AM17x_Power_Consumption_Summary

      If you do not have USB in your design, you will not need a 1.8V supply as except for USBs, all other IOs are 3.3V.

      Regards

      Mukul

       

       

      Don't forget to verify answers to your forum questions by using the green "Verify Answer" button.

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    • tung ngo
      Posted by tung ngo
      on Jun 14 2012 23:39 PM
      Prodigy210 points
      AM1707_Power_Consumtion.bmp

      Hi Nuku,

      In our design we use 1 USB0 (USB2.0 OTG), but in power spreadsheet I don't see the power consumption on +1.8V rail.

      Picture attachment is power spreadsheet that I calculated, please have a look.

      Thanks

      Tung

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    • Mukul Bhatnagar
      Posted by Mukul Bhatnagar
      on Jun 15 2012 08:18 AM
      Mastermind24420 points

      Hi Tung

      For the USB2.0 or USB1.1 row, on column L there is a drop down menu to change from No Activity to PHY ENABLE or HS/FS Transmit/Receive. Configure those cells to assess the power on the 1.8V rail for the various USB modes.

      Regards

      Mukul

       

       

      Don't forget to verify answers to your forum questions by using the green "Verify Answer" button.

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