STUPIDSID
1(a)
What are universal gates? Why are they called so?
2 M
1(b)
Add and subtract octal numbers 369 and 715
2 M
1(c)
Design a BCD to Excess-3 code converter.
3 M
Solve any one question from Q.1(d) & Q.1(e)
1(d)
Minimize the given Boolean function using K-map and implement the simplified function using only NAND gates.
F(A,B,C,D)= Σm(0,1,2,9,11,15)+d(8,10,14)
F(A,B,C,D)= Σm(0,1,2,9,11,15)+d(8,10,14)
7 M
1(e)
Minimize the given Boolean function using Quine-McCluskey method
F(a,B,C,D)= Σm(0,2,3,6,7,8,9,10)
F(a,B,C,D)= Σm(0,2,3,6,7,8,9,10)
7 M
2(a)
Draw the truth table and logic diagram of full adder.
2 M
2(b)
Draw the logic diagram of BCD adder and explain its working.
2 M
2(c)
Draw the logic diagram of Ex-NOR gate using only NOR gates.
3 M
Solve any one question from Q.2(d) & Q.2(e)
2(d)
Design a full subtractor circuit using decoder and OR gates.
7 M
2(e)
Draw the logic of Ex-NOR gate using only NOR
7 M
3(a)
Explain the terms-monostable,bistable and bistable and astable multivibrator.
2 M
3(b)
Write characteristic of digital logic families.
2 M
3(c)
Draw the circuit diagram of 2 input NAND gate (CMOS) and input NOR gate (TTL) and explain their working.
3 M
Solve any one question from Q.3(d) & Q.3(e)
3(d)
Draw the circuit diagram of Schmitt trigger and explain it working.
7 M
3(e)
Compare the following digital logic families RTL, DTL, TTL, ECL and CMOS.
7 M
4(a)
Draw the logic diagram of priority encoder and explain its working
2 M
4(b)
How a multiplexer can be used as a ROM?
2 M
4(c)
Design a 4-bit synchronous up counter using J-K flip-flops.
3 M
Solve any one question from Q.4(d) & Q.4(e)
4(d)
Implement the following Boolean function using 4:1 multiplexer using 4:1 multiplexer using A and B variables to the selection lines, F(A,B,C)= Σm(1,4,5,7)
7 M
4(e)
What is RAM? Distinguish between SRAM and DRAM. What is PLA?
7 M
5(a)
What is need of among to digital conversion?
2 M
5(b)
Draw the circuit diagram of sample and hold circuit and explain it working.
2 M
5(c)
Write short note on V-F converters.
3 M
Solve any one question from Q.5(d) & Q.5(e)
5(d)
Enlist the various types of Analog to Digital (A/D) converter and explain any one if them with neat sketch.
7 M
5(e)
Explain the operation of R-2R ladder type Digital to analog(D/A) converter with a neat sketch.
7 M
More question papers from Digital Circuit & System