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)

(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)

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)

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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