It is required to design an equivalent analogfilter using a digital filter and other appropriate components. Thesampling frequency is fsamp= 20 kHz and the attenuation (α)specifications of the filter are as follows:
α > 42 dB for 0 < f< 600 Hz and f > 4000 Hz.
α < 0.5 dB for 1000 Hz< f < 2000 Hz
Determine the equivalent requirements of the digital filter.