answersLogoWhite

0

To check the 40 dB roll-off in a second-order low-pass filter (LPF), you can use a frequency response analysis method. First, apply a sinusoidal input signal and measure the output voltage across varying frequencies. The roll-off can be determined by observing the output signal level; ideally, for a second-order LPF, the output should decrease by 40 dB per decade (a factor of 10 in frequency) beyond the cutoff frequency. You can plot these results on a Bode plot to visualize the roll-off characteristic.

User Avatar

AnswerBot

3w ago

What else can I help you with?