## Question Paper of "ELECTRONIC SYSTEM DESIGN" for M. Tech (ECE) (Sem.-1st), Subject Code: EC-502, Paper ID [ E0562 ], PTU Question Paper.

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Total No. of Questions: 08

M. Tech. (ECE) (Sem.-1st)
ELECTRONIC SYSTEM DESIGN
Subject Code: EC-502
Paper ID: [E0562]

Time: 3 Hrs.                                                                 Max. Marks: 100
Instruction to Candidates:
1.     Attempt any FIVE questions out of EIGHT questions.
2.     Each question carry TWENTY marks.

Q1.
(a)  Simplify the following function using k-map and implement the reduced expression using basic logic gates.
F(A,B,C,D,E)=
(b) Implement Full-sub-tractor using 8:1 MUX.
(12+8)

Q2.
(a)  The input to a combinational circuit is a 4-bit binary number. Design the circuit with two outputs for the following condition:
(1) Y1=1, if the input binary number is 5 or less than 5.
(2) Y2=0, if the input binary number is 9 or more than 9.
(b) Design a 4-bit Binary to Gray code converter.
(12+8)
Q3.
(a)  Explain in detail the working of T flip-flop. Describe a circuit to convert T flip-flop to D flip-flop.
(b) Design a 3-bit, Mod-5 binary counter.
(12+8)
Q4. Using the detailed step by step analysis technique for synchronous sequential machines, analyze the following circuit.

(20)
Q5.
(a)  Why we need shift registers in digital design? Explain the various operation modes of shift registers.
(b) With the help of example(s) discuss the hazards in circuit developed by MEV method.
(10+10)
Q6.
(a)  What is PLA? Draw and explain its structure. Discuss the PLA based design in detail.
(b) What are essential Hazards? How these hazards effect the operation of machine?
(10+10)
Q7. Explain the various MEV approaches to asynchronous circuits in detail.
(20)
Q8.
(a)  Discuss how a digital system can be interfaced with fiber cables and co-axial cables.
(b) Using steps and rules for design of asynchronous machines, design a Basic Binary Cell.

(10+10)