21CS33 Dayananda Sagar University • Computer Science & Engineering (Semester 3)

Analog and Digital Electronics

💡 DSU Exam Strategy & Guidance

Op-Amps, Karnaugh Maps (K-Maps), Multiplexers, Decoders, Flip-Flops, and Synchronous Counter Design.

High-Yield Passing Strategy: Practice 4-variable K-Map minimization and draw neat JK / D flip-flop state diagrams.
Most Repeated Question Topics:
4-Variable K-Map MinimizationMaster-Slave JK Flip-FlopSynchronous Up/Down Counter DesignInverting & Non-Inverting Op-Amp Circuits

🔥 Most Predictable Exam Questions (2)

Guaranteed Every Year 8 Marks Module 2: Combinational Logic

Q1. Simplify the Boolean function F(A, B, C, D) = sum m(0, 2, 5, 7, 8, 10, 14, 15) + sum d(3, 11) using a 4-variable Karnaugh Map and realize the simplified expression using basic logic gates.

Key Points: Draw 4x4 grid with gray code labels (00, 01, 11, 10). Group corner octet/quads incorporating don’t-care terms to obtain minimal SOP expression.

95% Probability 8 Marks Module 4: Sequential Logic & Counters

Q2. Design a 3-bit Synchronous Up-Counter using JK Flip-Flops. Draw the state diagram, excitation table, K-maps for J & K inputs, and final logic schematic.

Key Points: States 000 -> 001 -> ... -> 111 -> 000. Use JK excitation table (0->0: 0,X; 0->1: 1,X; 1->0: X,1; 1->1: X,0). Solve K-maps: J0=K0=1; J1=K1=Q0; J2=K2=Q0*Q1.

🎓 Open Source Courses & Video Playlists (2)

YouTube (Neso Academy)

Neso Academy: Digital Logic Design

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YouTube (All About Electronics)

All About Electronics: Op-Amps & Comparators

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📄 Previous Year Question Papers (2)

END_SEM • 2024

End Semester Exam 2024

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END_SEM • 2023

End Semester Exam 2023

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