= 100 5.2-10 For a PCM signal, determine the minimum necessary L if the compression parameter is μ and the minimum SNR required is 42 dB. Recall that L = 2n is required for a binary PCM. Determine the output SNR for this value of L. Problems 363 5.2-11 Five sensor output signals, each of bandwidth 240 Hz, are to be transmitted simultaneously by binary PCM. The signals must be sampled at least 20% above the Nyquist rate. Framing and synchronizing requires an additional 0.5% extra bits. The PCM encoder of Prob. 5.2-10 is used to convert these signals before they are time-multiplexed into a single data stream. Determine the minimum possible data rate (bits per second) that must be transmitted, and the minimum bandwidth required to transmit the multiplex signal.

Exampic Bandwidth of the input to pulse code modulator is restricted to 4 kHz. The input varies from -3.8V to 3.8 V and has the average power of 30 mW, the required signal to quantization noise power ratio is 20 dB. The modulator produces binary output. Assume uniform quantization Calculate the number of bits required per sample.

Construct MOD 12 asynchronous counter. What will be the output frequency, if the input frequency is 1 MHz. If the counter is at state 6, what will be the count after 60 pulses.

Q5/ The information in an analog waveform with maximum frequency fm transmitted over M-level PCM system where the number of quantization levels is M = 16. The quantization distortion is specified not to exceed 1% of peak-to-peak analog signal. = 3 KHz is to be i) What would be the maximum number of bits per sample that should be used in this PCM system? (ans,n = 4 bits) What is the minimum sampling rate and what is the resulting bit transmission rate? ii) (ans.r > 24 x 103 bits/sec)