What is the circuit used to produce a DSBSC AM? Explain.
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What is the circuit used to produce a DSBSC AM? Explain.
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- C: moving coil meter has coil resistance of (20 n ) and FSD current of ( 400 Micro amperes ). Find value of series resistance required to design a voltmeter with range of (10 volts) ,draw circuit, and find sensitivity. (: "4 bits instrumentation flash ADC" with reference voltage of 16 volts : - des - determine the maximum allowed input signal voltage. and then draw the schematic diagram of flash ADC. - the output ,when input voltage = 7 volts.c) What does the ASYNC input to the 8284A accomplish?A Voltage to Frequency Convertor (VCF) consists of a voltage controller oscillator (VCO), a gate pulse generator, and an AND gate. If the output frequency to measured voltage of the VCO is 100. Calculate the measured voltage when 200 pulses are detected during 0.01 seconds.
- A 555 timer configured to run as an astable mode oscillator is shown in Figure 1. If the output is needed to have 30% duty cycle, i) Determine the required value of Rị if R2 = 7kN. ii) Determine the frequency of the output. iii) Draw the charging and discharging phase of capacitor Cext and its relation with the output waveform. ASsume Vcc = 12 V. +Vcc (4) |(8) R1 RESET Vcc (7) DISCH 555 D1 R2 (6) THRESH (3) OUT (2) TRIG (5) CONT GND :Cext 0.01 µF (1) 0.01µF Figure 1What is a BJT transistor and how does it work in amplification and switching circuits?The most common technique to caneg analog to digital data is called Pulse Code Modulation(PCM). What are the 3 processes of a PCM? (in order)
- (i)What do you mean by DAC ? (ii)List out the types of ADC .Also mention about the type of ADC which is having excellent noise rejection characteristics. (iii)Draw the circuit of potential divider circuit.(i) What do you mean by DẶC ? (ii) List out the types of ADC .Also mention about the type of ADC which is having excellent noise rejection characteristics. (iii) Draw the circuit of potential divider circuit.2. For the balanced modulator circuit, describe with aid of equations and figures a suitable method to recover the modulating signal. 3. Derive an expression for the output voltage of the balanced modulator circuit in each half cycle of the triggering pulse.
- In the QPSK modulator in the figure shown, the reference oscillator (as can be seen in the figure) is sinwct. Change the reference oscillator to coswct and plot the new constellation diagramDraw a block diagram and briefly explain the operation of Succesive Approximation ADC.-4) Design a circait containing a comparater with a hy steresis loop a. Draw the circuit with all values of the components required for the dksign. b. What is the name of the circuit in (a). c. Sketch the output waveform when the input is a 15-V peak sine wave. d. Adjust the value of RI in the circuit such that the hysteresis width will be 10.