87.1 Digital Filter Specifications @n- passband edge frequency s- stopband edge frequency 8p- peak ripple value in the passband 8s-peak ripple value in the stopband Since g(ejo) is a periodic function of o, and G(ejo)l of a real-coefficient digital filter is an even function of o As a result, filter specifications are given only for the frequency range0so≤π§7.1 Digital Filter Specifications • p - passband edge frequency • s - stopband edge frequency • p - peak ripple value in the passband • s - peak ripple value in the stopband • Since G(ej) is a periodic function of , and |G(ej)| of a real-coefficient digital filter is an even function of  • As a result, filter specifications are given only for the frequency range 0 ||