Digital Electronics DE 3rd Sem/IT/CSE/0620/Feb 2021 Diploma Paper

Digital Electronics DE 3rd Sem/IT/CSE/0620/Feb 2021 Diploma Paper

Section A:-Digital Electronics DE 3rd Sem/IT/CSE/0620/Feb 2021 Diploma Paper

Propagation delay, Bit rate and Power dissipation.

Multiplexer

Draw the logic diagram of 4:1 De-multiplexer.

Half Subtractor circuit.

De-Morganâ€™s theorems with the help of suitable example.

Symbol, Boolean expression and truth table for NAND gate.

Encoder

Draw the logic circuit of decimal to BCD encoder.

Â ConvertÂ
a) (.625)10 = (?)2 b) (100.111)2 = (?)10 c) (FF4D) 16 = (?)2

Digital Electronics DE 3rd Sem/IT/CSE/0620/Feb 2021 Diploma Paper

Section b :-Digital Electronics DE 3rd Sem/IT/CSE/0620/Feb 2021 Diploma Paper

K-map to reduce the function. Realize the reduced function by using NAND gates only.
Y = Î£m (0,1,4,5,3,2,11,10).

OR, NOR, EX-NOR gate with their symbols, Boolean expression and truth table.

Decoder

functioning of a 2 to 4 line decoder with the help of a circuit diagram and
truth table.

A to D conversion with the help of a dual type of ADC.