DIGITAL SYSTEM DESIGN (EC-303) - Important Questions

Convert numbers (including fractional parts) between decimal, binary, octal and hexadecimal systems, and convert the given binary number to Gray code and Excess-3 code.

Minimize the Boolean function using K-map with don't care conditions: Y = Sum m(0,1,6,7) + Sum d(8,9,10,11,12) and obtain minimal SOP expression.

State and prove De-Morgan's theorem with truth table and logic gate representation.

Design a full adder using two half adders. Derive truth table, expressions for Sum and Carry and draw logic diagram.

Explain the working and design of BCD adder with neat diagram and correction logic.

Design and explain a 4-bit priority encoder with truth table and logic circuit.

Explain an 8:1 multiplexer in detail with block diagram, truth table and logic circuit.

Explain the working of master-slave JK flip-flop with circuit diagram and timing diagram and explain how it eliminates race-around condition.

Design a Pseudo Random Binary Sequence (PRBS) generator and explain its working with state diagram.

Explain the design procedure for a synchronous finite state machine with suitable example.

Explain the working of a universal shift register with neat diagram and example of modes of operation.

Design a MOD-6 synchronous counter using J-K flip-flops with state diagram, state table, excitation table and logic diagram.

Explain the differences between synchronous and asynchronous counters with respect to operation, speed, design and applications.

Draw the circuit diagram of Tri-state TTL NAND gate and explain its working, including truth table and need for tri-state logic.

Write short notes on any two of the following: (i) FPGA architecture with suitable block diagram (ii) CMOS family and its interfacing with TTL (iii) Programmable logic devices - PAL and PLA.