Download PTU B.Tech 2020 March ME 7th Sem Vlsi Design Question Paper

Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) ) BE/BTech ME (Marine Engineering) 2020 March 7th Sem Vlsi Design Previous Question Paper

1 | M-72170 (S2)-2759
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech. (ECSE) (Sem.?7)
VLSI DESIGN
Subject Code : BTEC-604
M.Code : 72170
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
1. Write briefly :
a) State the advantages of VHDL.
b) What is transport delay? How it differs from inertial delay?
c) What is the range of natural and real data types in VHDL?
d) How is generic statement useful in VHDL code?
e) Differentiate between synthesis and simulation.
f) Explain type declaration and its usage.
g) Why NMOS technology is preferred more than PMOS technology?
h) Differentiate enhancement mode and depletion mode transistors.
i) Describe if else statement.
j) What are various sources of power dissipation in CMOS circuits?
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1 | M-72170 (S2)-2759
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech. (ECSE) (Sem.?7)
VLSI DESIGN
Subject Code : BTEC-604
M.Code : 72170
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
1. Write briefly :
a) State the advantages of VHDL.
b) What is transport delay? How it differs from inertial delay?
c) What is the range of natural and real data types in VHDL?
d) How is generic statement useful in VHDL code?
e) Differentiate between synthesis and simulation.
f) Explain type declaration and its usage.
g) Why NMOS technology is preferred more than PMOS technology?
h) Differentiate enhancement mode and depletion mode transistors.
i) Describe if else statement.
j) What are various sources of power dissipation in CMOS circuits?
2 | M-72170 (S2)-2759
SECTION-B
2) What are the different types of VHDL modeling? Explain with the examples.
3) Write the VHDL code for 3 bit Binary to Gray converter.
4) What is NMOS inverter? Discuss the transfer characteristics of it.
5) Explain pre-defined and user-defined attributes with the help of suitable examples.
6) What is scaling? What is the effect of scaling on the circuit performance?

SECTION-C
7) Design and implement 16:1 Multiplexer using two 8:1 MUX and a logic gate in Verilog
HDL.
8) Draw CMOS inverter and discuss its DC characteristics. Write the conditions for the
different region of operations.
9) Write the VHDL code for 4-bit synchronous up counter using sequential statements.








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