In a PCM system, if N is the number of levels and Z is the step size, – McqOptions

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1.	In a PCM system, if N is the number of levels and Z is the step size, then mean square quantization error is given by:
A.	NZ/12
B.	Z2/12
C.	Z2/12N
D.	NZ2/12
Answer» C. Z2/12N

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