A uniform quantizer, with average quantization power of 67.5 mW, is used in a PCM system. 1) What is the step-size of this quantizer? 2) If the peak value of the quantizer is 12 volts, what is the number of bits of this quantizer? 3) If the quantizer is mid-tread; ● Find the level values of the quantizer. Draw the stair-case characteristics of the quantizer.

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A uniform quantizer, with average quantization power of 67.5 mW, is used in a PCM system.
1) What is the step-size of this quantizer?
2) If the peak value of the quantizer is 12 volts, what is the number of bits of this quantizer?
3) If the quantizer is mid-tread;
. Find the level values of the quantizer.
• Draw the stair-case characteristics of the quantizer.
4) If an input signal, m(t) = 10 cos(4πt) is applied to the quantizer, what is the resulting SQNR in
dB?
5)
If the quantizer is replaced with another quantizer with the same peak value, but with two additional
bits, what is the resulting change in the SQNR if m(t) is applied to the new quantizer?
Transcribed Image Text:A uniform quantizer, with average quantization power of 67.5 mW, is used in a PCM system. 1) What is the step-size of this quantizer? 2) If the peak value of the quantizer is 12 volts, what is the number of bits of this quantizer? 3) If the quantizer is mid-tread; . Find the level values of the quantizer. • Draw the stair-case characteristics of the quantizer. 4) If an input signal, m(t) = 10 cos(4πt) is applied to the quantizer, what is the resulting SQNR in dB? 5) If the quantizer is replaced with another quantizer with the same peak value, but with two additional bits, what is the resulting change in the SQNR if m(t) is applied to the new quantizer?
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