How to measure the filter roll-off rate

fran1942 · May 28, 2012

Hello, I have taken the attached filter response graph of filter gain to frequency created in micro-Cap. My cutoff frequency is 1kHz.
How can I measure the roll off rate in db/Dec based on this graph ?
Perhaps there is a formula ?
Any help would be appreciated.

gneill · May 28, 2012

How many decades does your graph run for after the cutoff frequency? How many dB does it drop over those decades?

How to measure the filter roll-off rate

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How to measure the filter roll-off rate

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