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LMX2615-SP: Fout & Fosc integer relationship

Steve Widener
Genius 11010 points
Part Number: LMX2615-SP

For Figure 26 in the Nov2018 revision datasheet, please give an example of a YES and a NO in the decision box labeled "   fout%(2*fosc)=0. The notation is confusing.

For instance, if Fosc is 40MHz and Fout is 400MHz,, I would expect a YES, because 2 * 40MHz = 80MHz and an integer (5) can be multiplied to get 400MHz.

If Fosc is 40MHz and Fout is 440MHz, I would expect a NO because 2 * 40MHz = 80MHz and there is no integer to multiple to get 440MHz from 80MHz

Is that correct thinking?

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    TI__Genius 11900 points

    Hello Steve,

    Yes, your examples are correct. The "%" indicates the "modulus operator".


    fout%(2*fosc) = 0 means that the remainder when fout is divided by 2*fosc is 0.

    I appreciate the feedback you have provided on the datasheet.

    Thanks,

    Vibhu