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The data sheet mentions that the PLL 2 bit is set when 20 MHz to 25 MHz of the PLL clock are used. What does this mean?

April 26, 2017bit Data mentions MHz PLL Sheet

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The data sheet mentions that the PLL 2 bit is set when 20 MHz to 25 MHz of the PLL clock are used. What does this mean?

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• Answer :Taking internal operating frequency of 24 MHz as an example, this means that you should set 12 MHz with 1 multiplication and the PLL 2 bit to “1” (twice). That is, this means that 24 MHz oscillator with 1 multiplication cannot be set.