Question

A PCM system uses uniform quantizer followed by a 8 bit binary encoder. The bit rate of the system is equal to 50 Mbps. The approximate signal to noise ratio when a sinusoidal modulating wave of frequency 1 MHz is applied to the input is

• A. 49.92 dB
• B. 52.11 dB
• C. 45.56 dB
• D. 45.65 dB

Answer 1

The correct option is A 49.92 dB

$\left(SNR\right)=(1.76+6.02n)=1.76+6.02\times 8=49.92dB$