JNTU
JNTU B.Tech III ANALOG AND DIGITAL IC APPLICATIONS Previous Question Paper (May/June - 2019 - R16)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.
Part A
What are the different linear IC packages?
Answer
Common linear IC packages include the Metal Can package (TO-99), Dual-in-line package (DIP), and Flat pack.
List ideal characteristics of op-amp.
Answer
The ideal characteristics of an op-amp are: infinite open-loop gain, infinite input impedance, zero output impedance, infinite bandwidth, and zero common-mode rejection ratio (CMRR) for common-mode signals (or infinite CMRR).
What is Hysteresis?
Answer
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List and explain the characteristics of three terminals IC regulators.
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Define duty cycle D.
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List the applications of PLL.
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Mention any two applications of multiplier IC.
Answer
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Explain noise margin and propagation delay with respect to CMOS logic.
Answer
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Give the applications of JK latch.
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Draw the block diagram of 3 - bit ring counter.
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Part B
Design an op-amp differentiator to differentiate an input signal that varies in frequency from 10Hz to about 1 KHz.
Answer
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What are the disadvantages of using zero crossing detector? How it can be overcome using Schmitt trigger?
Answer
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Draw the circuit diagram of a two input non-inverting type summing amplifier and derive the expression for the output voltage.
Answer
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Draw and explain RC-phase shift oscillator.
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Draw the functional diagram of 723 regulator.
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How to get a notch filter from a band pass filter? Explain.
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Explain how a non-symmetrical square wave can be obtained.
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With a neat diagram explain the working principle of R-2R ladder type DAC. Also give its advantages and disadvantages.
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Discuss some applications of timer in monostable mode.
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What is the major difference between digital and analog PLLs?
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With neat circuit diagram explain the working of a 4 - bit odd parity generator.
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Explain sinking current and sourcing current of TTL output. Which of the above parameters decide the fan-out and how?
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Design a full subtractor with NAND gates.
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Explain the functional behavior of Static RAM cell? Show the internal structure of 8×4 static RAM.
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Design an 8-bit parallel-in and serial-out shift register. Explain the operation of the above shift register with the help of timing waveforms.
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Explain with the help of timing diagram read and write operations of DRAM.
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Name different type of memories, explain any two.
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