PTU Punjab Technical University B-Tech May 2019 Question Papers 6th Semester Automation Robotics ECE-EIE
Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(Electronics & Computer Engg.) (2011 Onwards) (Sem.?6)
DIGITAL SYSTEM DESIGN
Subject Code : BTEL-606
M.Code : 71162
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1.
SECTION-A is COMPULSORY consisting of TEN questions carrying T WO marks
each.
2.
SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3.
SECTION-C contains T HREE questions carrying T EN marks each and students
have to attempt any T WO questions.
SECTION-A
Q1. Answer briefly :
a) What is operator used in VHDL?
b) Convert the expression in maxterm F ( A B C).( A B C).( A B C)
c) What do you mean by ROM?
d) Write the applications of shift registers.
e) Convert (734)10 to hexadecimal.
f) Implement the function F ABC AB
g) Differentiate between PLA and PAL.
h) What is the function of a decoder?
i) Using a 8:1 MUX, realize the function F
m(0,1,5, 6, 7)
j) Define FPGA.
1 | M - 7 1 1 6 2
( S 2 ) - 1 0 0
SECTION-B
Q2. Convert a T flip-flop to a D flip-flop.
Q3. Compare asynchronous and synchronous counters.
Q4. Explain entity and architecture with reference to VHDL code of full adder circuit.
Q5. Explain hazards in combinational and sequential circuit with example.
Q6. Explain the terms like state, present state, next state, state diagram and state table.
SECTION-C
Q7. Design the sequential detector circuit using FSM to detect a sequence 1100.
Q8. Reduce the following expressions by using K-map and implement the reduced expression
by using universal gates only
F ( A B D).( A C D).( A B C D).(A B D) (C D)
Q9. Write short note on following :
a) VHDL
b) Difference of ROM and PLA
c) Data flow
NOTE : Disclosure of identity by writing mobile number or making passing request on any
page of Answer sheet will lead to UMC against the Student.
2 | M - 7 1 1 6 2
( S 2 ) - 1 0 0
This post was last modified on 04 November 2019