Question: A low-pass filter is required that will process high-fidelity audio signals meeting the following criteria: f0 = 20 kHz, TMAX = 20 dB, TMIN =

A low-pass filter is required that will process high-fidelity audio signals meeting the following criteria:

f0 = 20 kHz, TMAX = 20 dB, TMIN = −50 dB, fMIN = 200 kHz The filter should have less than 1:5 dB gain variation over most of the passband.

Design an appropriate circuit and justify your choice.

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