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A certain 8 bit uniform quantization PCM system can accommodate a signal ranging from - 1 V to + V. The rms value of the signal is V . The signal to quantization noise ratio is:

30 dB
46.91 dB
40 dB
49.92 dB

Correct Answer: 49.92 dB

Explanation:

(SNR)_dB = 1.76 + 6.02n

n = 8

Thus (SNR)_dB = 1.76 + 6.02 x 8 = 49.92 dB.

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