Experiment C.4: based on the full scale voltage (5 V) and the code word size of ADC (8-bit), can you find the SQNR, Dynamic Range and the average quantization error of this PCM system?
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Experiment C.4: based on the full scale voltage (5 V) and the code word size of...
Q2) A unipolar 14 bit ADC measures 0 – 8 volts full scale. a. What is the minimum resolvable voltage (or voltage resolution)? [Hint: resolution decrease as you increase the volts full scale] b. What is the percent quantization error? [Hint: percent quantization error for unipolar 10 bit ADC, 1 V full scale is: (resolution/max voltage) x100% or (975μV/1V) x100% = 0.0975%] c. What is the percent quantization error if a 1 volt max signal is input? [Hint: same resolution...
A bipolar 8 bit ADC measures 0 – 4 volts full scale. a. What is the minimum resolvable voltage? b. What is the percent quantization error? c. What is the percent quantization error if a 1 volt max signal is input?
(5) A PCM system encodes samples using an 8-bit ADC. In the case of peak signal amplitude, estimate the signal to quantization noise ratio in dB (6) The output SQNR of a 10-bit PCM was found to be insufficient at 30 dB. To achieve the desired SQNR of 42 dB, an increase to the number of quantization levels was needed. Determine the fractional increase in the transmission bandwidth required. (7) A signal x(t) band-limited to 3kHz is sampled at a...
An ideal analog-to-digital converter has 6 bits and a 1V input full-scale input voltage. What is the ideal minimum quantization error in volts? Also,what is the dynamic range of a 9-bit AtoD in dB?
a. Describe TWO (2) advantages and TWO (2) disadvantages of digital transmission. (CO1: PO1 - 4 marks) b. Sampling, quantization and coding are the three processes used to represent an analog signal in digital form. Considering an input signal into an 8-bit Pulse Code Modulation (PCM) system is a 20 Vp-p 50-Hz, answer the followings: i. Using appropriate diagram briefly describe TWO (2) basic methods to perform the sampling function. (CO2: PO2 - 2 marks) Determine the number of quantization...
A PMMC meter's full-scale current is 20 A, use the voltmeter to measure a unknown voltage with 500 load s with IMO, the meter reads 5 Vols in the 0-10 V range of the meter scale as shown is the figure below R,-500k R-1M ) (VR.. ? Vunknow 1. Find the Re 2. Find the new voltage 3. Find the voltage that should be found 4. Calculate the relative error of the measurement
Q1 Marks: 40 A digital communication system has 96 analog telephone signals, each band limited to 4 kHz. The telephone signals are converted to digital binary data using Pulse Code Modulator (PCM) system, which use a uniform quantiser followed by an 8-bit encoder. The system uses two bits for synchronization. The digital binary data are then time-division multiplexed and transmitted over a single communication channel. Analyse the communication system by considering the following principles: (i) Determine the number of quantization...
QUESTION 3 (25 MARKS) Describe TWO (2) advantages and TWO (2) disadvantages of digital transmission (C01: P01 - 4 marks) b Sampling, quantization and coding are the three processes used to represent an analog signal in digital form. Considering an input signal into an 8-bit Pulse Code Modulation (PCM) system is a 20 Vpp 50-Hz, answer the followings: i. Using appropriate diagram briefly describe TWO (2) basic methods to perform the sampling function. (CO2: PO2 - 2 marks) Determine the...
KS31603 SULIT/CONFIDENTIAL QUESTION 4 (20 marks) (a) A message signal has a peak voltage of 1V and its average power is 125 mW. Design a PCM system (find minimum value of R of the R bit A/D) with uniform quantization to achieve at least a signal to quantization noise ratio of 36 dB. What is the signal to quantization noise ratio obtained in your design? [6 marks] (b) If the signal is sampled at 9kHz in 4(a), what is the...
(10 points) What is the full-scale output voltage from a 8-bit DAC that produces 0.7V for a digital input of00110110? What is the resolution of this DAC? 9. (5 points). A block of memory is listed as 8Kx16 a. How many words can be stored? b. How many bits are in each word? c. What is the capacity of the memory?