Example #2: a differentiator da(t dt an ltI system Differentiation property: Y()=jw x(jw H 1)Amplifies high frequencies(enhances sharp edges) Larger at high 2)+丌/2 phase shift(j=c phase shift wo cos wot wo sin(wot+ dt cOS wl -wo sin wot wo cos(wot+Example #2: A differentiator 1) Amplifies high frequencies (enhances sharp edges) Larger at high ωo phase shift Differentiation property: