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 : 18B.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 : 60INSTRUCTIONS TO CANDIDATES :
- SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
- SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
- 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 :
- Convert a D flip flop into T flip flop
- Design a 4:1 MUX
- Parity Checker
- MOSFET RAM
- Function of Multivibrator
- RTL versus DCTL
- Convert 11001 to decimal
- What is resolution in A/D Converter?
- Find the state diagram to design a sequence detector circuit, which detects three or more consecutive 1βs in a string of bits coming through an input line.
- EEPROM
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SECTION-B
- Design full subtractor using De-Multiplexer.
- Using Boolean algebra show that :
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AB+ AC +BC=AB+ AC - Explain the structure of typical RAM cell.
- Draw and explain logic diagram of a mod-8 ripple counter using three JK flipflops.
- What is difference in 1βs and 2βs Complement? Which of two is better to represent negative numbers? Why?
SECTION-C
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- What are the different A/D and D/A conversion techniques? Explain in detail.
- What do you understand by Boolean expressions and need of their minimization? Elaborate SOP and POS.
- a. Draw a truth table for 4-input βORβ Gate and 3-input βNANDβ 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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