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- 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)discrete state. 3. A BCD counter can assume 4. A BCD counter can divide its input signal frequency byhow to draw the small signal model
- 13. The purpose of the __________ is to periodically sample the continuallychanging analog signal and covert those samples to a series of constantamplitude pulses that can more easily be converted to binary PCM.14. In ___________, the input analog waveform is sampled by a sampling pulsewith an output waveform that is flattened at the top.15. The simplest form of pulse modulation is ______________.Which statement is true? a. In FSK, the modulating signal and the carrier signal are both analog b. In FSK, the modulating signal and the modulated signala re both digital c. In FSK, the modulating signal and the modulated signal are both analog d. In FSK, the carrier signal is analog and the modulating signal is digital1.) Determine the bit rate and quantization step of the ADC in the sampling of analog signal with x[n] of 1.02 Vpp, sampling rate of 20 samples per second, and 8-bit binary code 2.) An analog signal is to be coded by an ADC. The signal contains significant frequencies up to 6MHz. The quantization error in any one sample value must be within (plus-minus sign) 0.5% of the peak-to-peak amplitude range of the ADC. How many binary digits must each sample contain?
- 1) Determine the bit rate and quantization step of the ADC in the sampling of analog signal with x[n] of 1.02 Vpp, sampling rate of 20 samples per second, and 8-bit binary code. 2) An analog signal is to be coded by an ADC. The signal contains significant frequencies up to 6MHz. The quantization error in any one sample value must be within ± 0.5% of the peak-to- peak amplitude range of the ADC. How many binary digits must each sample contain?7) If the analog signal has amplitudes that varies between-3 and 3 volts And maximum frequency of 10 KHz, and it is samples with 3 bits quantizer as shown in the figure. (a) Calculate the quantization levels and the optimum sampling timings. (b) Show in the graph the values on the vertical axis for both the analog values and the assigned bits. (c) Show the sampling times on horizontal axis. SC on od(a) 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.
- 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.Choose the correct answer low HDOP (Horizontal Dilution of Precision) number such as2 indicates a ........................... a.poor fix b.good fix c.poor signal quality d. good signal qualityQ: Explain why the envelop detector cannot demodulate the over-modulated signal . Discuss how to demodulate the over-modulated signal.