Monday, January 30, 2023

Dr. A.P.J. Abdul Kalam University BE IV SEM (EC) Integrated Circuits and its Applications [EC226T] June 2021 Question Paper

Dr. A.P.J. Abdul Kalam University

Bachelor of Engineering

Fourth Semester Main Examination, June-2021

Integrated Circuits and its Applications [EC226T]


Time: 3:00 Hrs Max Marks 70

Note: Attempt any five questions. All questions carry equal marks.

Q.1 (a) What are the Advantage and Disadvantage of negative feedback?

(b) Explain advantages and characteristics parameter of ICs?

Q.2 (a) What are Barkhausen criteria? Explain how oscillations start in an


(b) Explain crystal oscillator with suitable diagram?

Q.3 (a) Draw the block diagram of op-amp and write the function of each


(b) Explain differential amplifier?

Q.4 (a) Explain characteristics of op-amp?

(b) Draw and explain zero crossing detector with input and output


Q.5 (a) Write a short note on comparator?

 (b) Discuss Zero crossing detector with suitable diagram?

Q.6 (a) Design a low pass filter with a cut off frequency of 1 kHz and with a

pass band gain of 2?

(b) Draw the circuit of a first order Butterworth low pas filter and derive

its transfer function?

Q.7 (a) Write a short note on Notch filter?

(b) Write down the all pass filter and self-tuned filter?

Q.8 Define following (a) CMRR (b) PSRR (c) PLL

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