PCM Math Example The following table shows sampled analog signal amplitude values for digital signal representation. By applying the concept of Pulse Code Modulation, find the 4-bit code words. You have to solve the problem by using step by step formulation of normalized PAM values, normalized quantized value, normalized error and quantization code. Finally draw the line coding by using NRZ-I scheme. Assume that the sampling amplitudes are between 32V to +32V