PG TRB PHYSICS - Electronics unit-10 Model #01

Syllabus

Unit X 

Electronics (Digital electronics)

Binary - Decimal – Octal and Hexadecimal numbers – 8421 Excess–3 - Gray Codes – Logic gates– Laws Boolean algebra – Half and full adders – Subtractors – RS, RST, JK and M/S Flip-flops – Ripple counter – Decade counter –Up-down counter – Serial and parallel registers.

Operational amplifier

Differential amplifier – Parameters – Applications – Analog integration and differentiation –

Analog computation – Comparators – Sample and hold circuits – Oscillator – Hartley-Colpitt-Phase Shift- Wien’s bridge oscillators – Astable mono -Bistable multivibrators – Clipping and clamping circuits.

Microwave Physics

Microwave generation – Klystron – Magnetron – Travelling wave tubes – Microwave in

rectangular and cylindrical wave guides – Characteristics of Antennas – Short dipole radiation – Antenna gain – Directivity – Radiation resistance – Radiation intensity.

Microprocessor

Evolution of Microprocessors – Organization of micro-computers- Preliminary concepts – Basic concepts of programming – Architecture – Address – Data and control buses – Memory decoding –Memory mapped I/O and I/O mapped I/O. Machine and instruction cycles – Addressing modes – Use of arithmetic logical data – Transfer stack and I/O instructions – Instruction set and assembly programming of 8085 microprocessor – Fetch –

Execute – overlap – Instruction cycles – Instruction forward – Memories – RAM-PROMS, EPROMSEEPROMS – Static and Dynamic RAM.

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