Download PTU B.Tech 2021 Jan EE 3rd Sem 72164 Digital Electronics Question Paper

Download PTU (Punjab Technical University) B.Tech (Bachelor of Technology) / BE (Bachelor of Engineering) 2021 January EE 3rd Sem 72164 Digital Electronics Previous Question Paper

Roll No.
Total No. of Pages : 02
Total No. of Questions : 18
B.Tech.(EE) PT (Sem.?3)
DIGITAL ELECTRONICS
Subject Code : BTEE-404
M.Code : 72164
Time : 3 Hrs. Max. Marks : 60
INST RUCT ION TO CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION-B c ontains F IVE questions c arrying FIVE marks eac h and s tud ents
have to atte mpt any FOUR q ues tions.
3 .
SECT ION-C contains THREE questions carrying T EN marks e ach and s tudents
have to atte mpt any T WO questio ns.
SECTION-A
Answer briefly :
1)
Convert Decimal Number 4587 into Octal and Hexadecimal Number systems.
2)
Subtract 21 from 36 using 2's complement method.
3)
State and prove Demorgan's Theorem.
4)
Convert AB + AB into POS form.
5)
Define MOD counters.
6)
Draw a VHDL view of a Digital model.
7)
What do you mean by Figure of merit in Logic family?
8)
Define accuracy of D/A converters.
9)
Differentiate between RAM and ROM.
10) Define content addressable memories.
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SECTION-B
11) Design a 3 bit odd parity generator.
12) Minimize the following expression using Q-M method
Y = m (1, 2, 3, 6, 7, 9, 10, 11, 13)
13) Design SR flip flop using JK flip flop.
14) Write a VHDL code for full adder.
15) Draw and explain dual slop A/D converter.
SECTION-C
16) Differentiate between various types of ROM.
17) Explain FPGA in detail.
18) Design universal shift register.
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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