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Uwe Bonnes
Chief
October 18, 2017
Question

STM32H7 PLL minimum input frequency

  • October 18, 2017
  • 1 reply
  • 567 views
Posted on October 18, 2017 at 11:10

Hello,

STM32H743 datasheet Rev. 2  in chapter 6.3.10 PLL characteristics tells 2 MHz minimum PLL input clock (f (PLL_IN)). Reference manual RM0433 Rev 3 in chapter 8.5.5 'PLL description' tells about a low frequency VCO(VCOL) for input frequencies 1 to 2 MHz. Pleas resolve this inconsistancy.

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    1 reply

    Nesrine M_O
    Associate
    October 18, 2017
    Posted on October 18, 2017 at 15:49

    Hi

    Bonnes.Uwe

    ,

    You are right. Thank you for bringing this issue to our attention, in fact we have to add a dedicated table for theA low-frequency VCO.

    It is noted and will be fixed in coming release of the datasheet.

    -Nesrine-