Choosing RC values to produce specific frequencies

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  1. - 26th March 2011, 18:00 #1
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    Acetronics2
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    Default Re: Choosing RC values to produce specific frequencies

    Hi, Charlie

    The result is variable from a chip to another ... so no formula given

    but try F = 1 / ( 2.4 x R x C ) ...

    so, 10k and 22pF should be close to 2 Mhz ...

    Alain
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  2. - 28th March 2011, 12:35 #2
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    Charlie
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    Default Re: Choosing RC values to produce specific frequencies

    Thanks, Alain!

    This was very helpful.
    Can you tell me where the number comes from? I tried to derive it several ways, but no luck.
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