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cut off frequency of RC filter?

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seyyah

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rc cut-off frequency

What's the cut off frequency of this circuit?
 

willyboy19

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If what you meant is applying an input at the left side of R1 and check the output at the right side of R1, you get a low pass filter with DC gain of R2/(R1+R2). The pole (or cut-off frequency) should be -1/Req/C, where Req=R1*R2/(R1+R2).
 

    seyyah

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seyyah

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Yes i've mentioned that. Adding 2π and we get Fo i think. Thanks.
 

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