CSIT-304 - Digital Circuits & System (DSC)

Convert the following:

i) $(753)_{10}$ to decimal

ii) $(4A3)_{16}$ to binary

iii) $(101101.101)_2$ to decimal

iv) $(45.625)_{10}$ to Binary

v) $(101101101)_2$ to Hexadecimal

vi) $(74)_8$ to Excess-3 code

vii) $(11011101)_2$ to Gray code

Simplify the following function using 3-variable K-map: F(A,B,C)=$\Sigma$m(1,2,3,7) Also draw the simplified logic diagram.

Implement the Boolean function using only NAND gates: F(A,B,C)=AB+A'C

Explain the working of a Full Adder with truth table and logic diagram. Why is it required in arithmetic circuits?

Implement the Boolean function F(A,B,C)=$\Sigma$m(1,3,6,7) using a 4:1 multiplexer.

Design a decimal-to-BCD encoder and explain its working.

Explain the working of a Master-Slave J-K flip-flop with timing diagram. alt=''

Explain asynchronous counters and synchronous counters. Compare them with respect to speed and hardware complexity.

Implement the Boolean functions using PLA: F1=A'B+AC, F2=AB'+BC' Draw the PLA programming table.

Explain the working of a Sample and Hold circuit with neat diagram. Why is it required in ADC systems. alt=''

Explain the internal block diagram and working of IC 555 Timer. Discuss any two applications of IC 555. alt=''

Explain Time Division Multiplexing (TDM) with block diagram. Differentiate between synchronous and asynchronous TDM. alt=''

Explain quantization process and quantization error in PCM. How can quantization noise be reduced.

Logic Gates

look-ahead carry generator

S-R Flip-Flop

Shannon's Channel Capacity Theorem