Hi,
I have the following question:
FIGURE 2 shows the response of a first-order filter to a step input. Estimate the half-power cut-off frequency of the filter and sketch its frequency and phase response.
My attempt at the answer is:
The half-power cut-off frequency is when the voltage is at 0.707 of maximum where the output is at -3dB. In this example, the output is a maximum of 1V and the output takes ~2.25us to reach 0.707 of this point. Therefore, the estimated cut-off frequency is:
2.25/10^-6 = 2.25MHz
Can somebody tell me if this is correct? Thanks.
Figure 2 is:
Moderators note : uploaded picture with better white balance for better readability.
I have the following question:
FIGURE 2 shows the response of a first-order filter to a step input. Estimate the half-power cut-off frequency of the filter and sketch its frequency and phase response.
My attempt at the answer is:
The half-power cut-off frequency is when the voltage is at 0.707 of maximum where the output is at -3dB. In this example, the output is a maximum of 1V and the output takes ~2.25us to reach 0.707 of this point. Therefore, the estimated cut-off frequency is:
2.25/10^-6 = 2.25MHz
Can somebody tell me if this is correct? Thanks.
Figure 2 is:
Moderators note : uploaded picture with better white balance for better readability.
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