 MORE IN Analog & Digital Circuits
MU Information Technology (Semester 3)
Analog & Digital Circuits
May 2014
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

1 (a) Explain the working of Zener diode as Voltage regulator.
4 M
1 (b) Give the comparison between LED and LCD.
4 M
1 (c) Why Transistor biasing is required? And state the factors to be considered in designing a biasing circuit.
4 M
1 (d) Convert the following decimal numbers to Binary, octal and Hexadecimal number
(i) (555)10 (ii) (7905)10
4 M
1 (e) Compare Combinational Logic with Sequential Logic.
4 M

2 (a) Design and Implement one digit BCD adder using IC-7843
10 M
2 (b) Explain the working of Monostable Multivibrator using IC-555
10 M

3 (a) Explain any four Linear applications of operational Amplifier
12 M
3 (b) Design a Module-9 up counter using 4-bit ripple counter.
8 M

4 (a) Implement the following expression, using only one 4:1 MUX and few Logic gates
F(A,B,C,D) = ΠM (0, 1, 2, 3, 6, 8, 11, 13, 15)
10 M
4 (b) Explain Differential Amplifier and explain any one method to improve CMRR.
10 M

5 (a) Implement the following expression, using only one 4:1 MUX and few Logic gates
F(A,B,C,D) = ΠM (0, 1, 2, 3, 6, 8, 11, 13, 15)
10 M
5 (a) With a neat logic diagram explain the operation of 5-bit shift Register.
10 M

Write short notes on the following.
6 (a) 3-bit Bianry to gray code conversion.
7 M
6 (b) VHDL Program Format
7 M
6 (c) S-R and J-K Flip-Flop.
7 M

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