We wish to model a nonlinear 2-bit D/A, with output levels given by {–0.61, –0.17, 0.25, 0.59} as an ideal D/A followed by an additive error, . Assuming that the four levels occur with equal...

We wish to model a nonlinear 2-bit D/A, with output levels given by {–0.61, –0.17, 0.25, 0.59} as an ideal D/A followed by an additive error, . Assuming that the four levels occur with equal probability, what is the power of the ideal D/A quantization noise, and what is the error power due to the nonlinearity, ?