B.TECH - Semester 3 digital system design Question Paper 2019 (mar)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- Express the Boolean function $F=x y+x^{\prime} z$ in product of maxterm form.
- Simplify using $K$ Map $F=A^{\prime} B^{\prime} C^{\prime}+B^{\prime} C D^{\prime}+A^{\prime} B C D^{\prime}+A B^{\prime} C^{\prime}$.
- Implement $\mathrm{F}(\mathrm{a}, \mathrm{b}, \mathrm{c})=\Sigma(0,6)$ with NAND gates.
- Implement $\mathrm{F}(\mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D})=\Sigma \mathrm{m}(0,2,3,6,8,9,13,14)$ using $8 \times 1 \mathrm{MUX}$.
- Compare synchronous and asynchronous counter.
- Give the excitation table and characteristic equation of SR Flipflop.
- What is a decoder ? How to convert a decoder to DMUX ?
- Define state diagram and state equation.
- What is a biased exponent ?
- Write the rules for BCD addition. Answer one full question from each Module. Each question carries 20 marks.
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- $F=(w, x, y, z)=w^{\prime}\left(x^{\prime} y+x^{\prime} y^{\prime}+x y z\right)+x^{\prime} z^{\prime}(y+w)$ $d=(w, x, y, z)=w^{\prime} x\left(y^{\prime} z+y z\right)+w y z$ $F(A, B, C, D)=\pi_{M}(2,8,9,10,11,12,14)$
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- $\mathrm{F} 1(\mathrm{~A}, \mathrm{~B}, \mathrm{C})=\Sigma(3,5,6,7) \quad \mathrm{F} 2=\Sigma(0,1,2,3,5)$. Implement the circuit with a PLA having 3 inputs, four product terms and 2 outputs. ..... 10 Module - IV
- OR