A 4th Order Butterworth LPF having cutoff frequency 1 KHz. What is the approximate level of attenuation at 2 Khz frequency?25 dB3 dB60 dB40 dB
Question
Solution 1
The level of attenuation for a 4th order Butterworth Low Pass Filter (LPF) can be calculated using the formula:
A = 20n log10(f/fc)
where:
- A is the attenuation in dB,
- n is the order of the filter,
- f is the frequency for which we want to calculate the attenuation,
- fc is the cutoff frequency Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study prob
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