5.15 (a) A sinusoidal signal with an amplitude of 3.25 volts is applied to a uniform quantizer of the midtread type whose output takes on the values 0, ±1, ±2, ±3 volts. Sketch the wave- form of the resulting quantizer output for one complete cycle of the input. (b) Repeat this evaluation for the case when the quantizer is of the midrise type whose output takes on the values ±0.5, ±1.5, ±2.5, ±3.5 volts.