UNIT 1Second order circuits: Source-Free Series RLC and Parallel RLC Circuit, Step Response of Series RLC and Parallel RLC Circuits. Sinusoids and Phasors: Phasors, Phasor Relationships for Circuit elements, General second-Order Circuits, Second-Order Op Amp Circuits.UNIT 2Introduction to logic circuits – Variables and functions, inversion – Truth tables – Logic gates and Networks – Boolean algebra – Synthesis using gates – Design examples – Optimized implementation of logic functions – Karnaugh map – Strategy for minimization – Minimization of product of sums forms – Incompletely specified functions – Multiple output circuits – Tabular method for minimization.UNIT 3Number representation and arithmetic circuits: Addition of unsigned numbers – Signed numbers – Fast adders Combinational circuit building blocks – Multiplexers – Decoders – Encoders – Code converters – Arithmetic comparison circuits.UNIT 4Sequential circuit building blocks – Basic latch – Gated SR latch – Gated D latch – Master slave and edge triggered – D flip-flops – T flip-flop – JK flip-flop – Registers – Counters – Reset synchronization – Other types of counters.UNIT 5Analog to digital conversion, digital to Analog conversion, microcontrollers, ardunio and raspberry pi based programmable circuits.