A band-limited signal witha maximum frequency of 5 KHz is to be sampled. According to the sampling the orem, the sam pling frequency which is not valid is (A) S KHz (B) 12 kHz (C) 15 kH2 (D) 20 kHz
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- An analog signal having a maximum frequency of 40 Hz is sampled with a sampling rate of 20 Hz. What will be the value of the digital frequency?Q:- which characteristic of an analog signal are changed to represent the lowpass analog signal in each of the following digital-to-analog conversation? a)ASK b)FSK c)PSK d)QMA.Indicate which of the following signals can be sampled without any loss ofinformation? For signals that can be sampled properly, determine the minimum samplingrate that can be used.
- Find the voltage attenuation ratio for a 30 dB attenuator. Show detailed calculation pls.a. Draw the block diagram of a measurement system. b. Mention the function of signal processing element. c. Write an example for variable conversion element .A signal is sampled at Nyquist's rate. This will ensure that the analog signal can be recovered from the samples version. If the signal before sampling is x(t)= 50cos(300t), then find out what will be sampling period or sampling interval provided sampling is done at Nyquist's rate.
- The common-mode gain of the front-end circuit for the instrumentation amplifier is equal to ACM= 1 V/V. If the instrumentation amplifier is not reducing the common-mode signal, then why is the CMRR of an instrumentation amplifier higher than a differential amplifier, in general?For an eight-bit D/A converter having a range of 5 V, convert 10110110 into an analog sample value (consider using the mathematical method – Hint: convert to decimal and multiply by step size).(Analog to Digital signal conversion problem) Continuous voltage is converted to discrete signal: Range of signal after amplification= 0V to 5 V A/D converter = 6 bits # Quantization levels = 26 = 64 Question: Assume the input signal is 3.5 V. Use the successive approximation method to encode the signal for this 6-bit converter. Please write both the decimal value and binary value for the code
- 1. For the pointer position in the diagram, what is the input signal if the range is set at 0.3 V? A. For the pointer position in the diagram, what is the input signal if the range is set at 1 V? B. For the pointer position in the diagram, what is the input signal if the range is set at 30 V? C. Let’s say you know that the input signal will be about -0.25 V. What range should you select to give maximum deflection without going off scale? Draw a line, with a straight-edge, on the picture above, showing how the pointer would point.Define in your own words what is a small signal FET when it comes to Av, Ai, ri, ro of the circuit.Consider the circuit. The transistor has a parameter β that varies between 50 and 200. The operation of the circuit and the electrical variables at the end points must be known. end points. Calculate the following for β = 50 and β = 200. a) lE, VE and VB (DC analysis). b) The input resistance Rin (small signal analysis). c) Voltage gain V0/ Vsig (Small Signal Analysis