Q7) Given the DSP system shown in Figure 2.16, where a sampling rate of 40,000 Hz is used, the anti-aliasing filter is a Butterworth lowpass filter with a cutoff frequency of 8 kHz, and the percentage of aliasing level at the cutoff frequency is required to be less than 4%, determine the order of the anti-aliasing lowpass filter.

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Q7) Given the DSP system shown in Figure 2.16, where a sampling rate of
40,000 Hz is used, the anti-aliasing filter is a Butterworth lowpass filter
with a cutoff frequency of 8 kHz, and the percentage of aliasing level at the
cutoff frequency is required to be less than 4%, determine the order of
the anti-aliasing lowpass filter.
Transcribed Image Text:Q7) Given the DSP system shown in Figure 2.16, where a sampling rate of 40,000 Hz is used, the anti-aliasing filter is a Butterworth lowpass filter with a cutoff frequency of 8 kHz, and the percentage of aliasing level at the cutoff frequency is required to be less than 4%, determine the order of the anti-aliasing lowpass filter.
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