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Download PTU B-Tech CSE-IT 2020 Dec 3rd Sem 56593 Digital Circuits And Logic Design Question Paper

Download PTU (I.K.Gujral Punjab Technical University (IKGPTU)) B-Tech (Bachelor of Technology) (CSE-IT)- Computer Science Engineering -Information Technology 2020 December 3rd Sem 56593 Digital Circuits And Logic Design Previous Question Paper

This post was last modified on 13 February 2021

This download link is referred from the post: PTU B.Tech Question Papers 2020 December (All Branches)


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Total No. of Pages : 02

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Total No. of Questions : 18

B.Tech.(CSE)/(IT) (2012 to 2017) (Sem.-3)
DIGITAL CIRCUITS & LOGIC DESIGN
Subject Code : BTCS-303
M.Code : 56593

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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.
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SECTION-A

Write Briefly :

  1. Convert a D flip flop into T flip flop
  2. Design a 4:1 MUX
  3. Parity Checker
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  5. MOSFET RAM
  6. Function of Multivibrator
  7. RTL versus DCTL
  8. Convert 11001 to decimal
  9. What is resolution in A/D Converter?
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  11. Find the state diagram to design a sequence detector circuit, which detects three or more consecutive 1’s in a string of bits coming through an input line.
  12. EEPROM

SECTION-B

  1. Design full subtractor using De-Multiplexer.
  2. Using Boolean algebra show that :

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    AB+ AC +BC=AB+ AC
  3. Explain the structure of typical RAM cell.
  4. Draw and explain logic diagram of a mod-8 ripple counter using three JK flipflops.
  5. What is difference in 1’s and 2’s Complement? Which of two is better to represent negative numbers? Why?

SECTION-C

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  1. What are the different A/D and D/A conversion techniques? Explain in detail.
  2. What do you understand by Boolean expressions and need of their minimization? Elaborate SOP and POS.
  3. a. Draw a truth table for 4-input β€˜OR’ Gate and 3-input β€˜NAND’ Gate
    b. Define Interfacing and show the interfacing of two TTL gates. Also discuss their characteristics.

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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This download link is referred from the post: PTU B.Tech Question Papers 2020 December (All Branches)

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