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ONET1151P

Minglai Kao
Intellectual 635 points

What's the relationship between the low frequency cutoff and the value of the capacitor between pins  COC1 and COC2?

Is it the bigger the capacitance the lower the cutoff frequency?

  • 0
    TI__Genius 13935 points

    Hello Minglai,

    You are correct, a larger capacitor gives a lower cutoff frequency.  On page 6 of the datasheet it states that the default frequency is 80kHz, but by adding a 330pF capacitor will reduce it to 10kHz.  If you need a lower frequency you can use a larger capacitor.  If the feature is not needed the two pins can be shorted.  

     

    Regards,

    Loren