STUPIDSID
1(a)
Name universal gates, Realize basic gates using NAND gate only.
8 M
1(b)
Prove that symmetrical signal has a duty cycle of 50% and find the frequency, low and high duty cycles for asymmetrical signal if it is high for 3 ms and low for 4 ms.
8 M
1(c)
Explain the structure of VHDL/Verilog program.
4 M
2(a)
Find the SOP of the following Boolean function using K-map
i) f(p q r s) = ∑m(6, 7, 9, 10, 11, 13) + d(0, 1, 8, 12)
ii) f(a b c d)= πm (1, 2, 4, 9, 10, 12) + d(0, 3, 5).
i) f(p q r s) = ∑m(6, 7, 9, 10, 11, 13) + d(0, 1, 8, 12)
ii) f(a b c d)= πm (1, 2, 4, 9, 10, 12) + d(0, 3, 5).
8 M
2(b)
Simplify f(A B C D) = ∑m(0, 1, 2, 3, 5, 8, 12, 14, 15) using Quine - McClusky method.
12 M
3(a)
Design a 16:1 multiplexer using two 8:1 multiplexer and one 2:1 multiplexer with expressions.
6 M
3(b)
With relevant diagram explain explain n-bit magnitude comparator.
8 M
3(c)
Give HDL implementation for 4:1 MUX using 'case' statement.
6 M
4(a)
What do you mean by characteristics equation of Flip-Flop'? Draw the logic diagram, truth table and explain working of 'JK - Flip - Flop' and implement the same using NAND gate.
12 M
4(b)
With state table and state transition diagram, analyse the behavior of sequential circuit shown in fig.Q.4(b).
8 M
5(a)
With a neat logic and timing diagram, explain the working of a 4-bit SISO register.
10 M
5(b)
Design two 4-bit number serial adder.
6 M
5(c)
Write verilog HDL code for 4-bit SIPO shift register.
4 M
6(a)
Design synchronous modulus - 5(mod-5) counter using JK-Flip-Flop.
10 M
6(b)
Explain, design of 4-bit bu=inary ripple - up counter using negative edge triggered JK-Flip-Flops with block diagram and timing diagram.
10 M
7(a)
With neat diagram explain and compare Mealay and Moore machine.
10 M
7(b)
Reduce state transition diagram (Moore model) of Fig.Q.7(b) by i) Row elimination method ii) Implication table method.
10 M
8(a)
Discuss the two drawbacks of resistive divider used in converting D/A. Draw the schematic for a 4-bit binary ladder and explain how the digital to analog conversion is achieved using it.
10 M
8(b)
Discuss the working of following A/D converters:
i) Successive approximation A/D
ii) Counter type A/D.
i) Successive approximation A/D
ii) Counter type A/D.
10 M
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