Brief Summary
This video provides an overview of the "Analog and Digital Electronics" (21CS33) syllabus for third-semester computer science students. It details the course structure, learning objectives, module-wise content covering BJT biasing, op-amp applications, digital circuit simplification using K-maps and Quine-McCluskey, combinational circuit design, VHDL programming, registers, and counters. The video also explains the Continuous Internal Evaluation (CIE) and Semester End (SE) examination schemes, along with recommended textbooks and resources.
- Course structure includes both theory and practical components.
- Syllabus covers analog electronics (BJT biasing, op-amps) and digital electronics (K-maps, combinational circuits, VHDL).
- Assessment includes CIE (tests, assignments, practical assessment) and a semester-end examination.
Introduction to Analog and Digital Electronics
The video introduces the subject of Analog and Digital Electronics (21CS33) for the third semester, outlining that the course includes both theoretical and practical components. The course consists of three hours of theory classes and two lab sessions per week. The assessment includes 40 hours of theory and 20 hours of practical sessions, with CAE and SEE marks split 50/50, totalling 100 marks, and a three-hour SEE exam.
Course Learning Objectives
The course aims to teach students about photoelectronic devices, timer and regulator ICs such as the operational amplifier IC μA741. Students will learn to simplify combinational circuits using K-maps and the Quine-McCluskey method, illustrate combinational and sequential digital circuits, use flip-flops and apply for resistors, and design and test counters and analog-to-digital/digital-to-analog conversion techniques.
Module 1: Analog Electronics - BJT Biasing and Op-amp Applications
Module one focuses on analog electronics, specifically BJT biasing (NPN and PNP transistors) and operational amplifier applications. It covers op-amp circuits such as peak detectors and voltage-to-current/current-to-voltage converters, building upon inverting and non-inverting amplifiers studied in previous semesters. The recommended textbook is Textbook 1, chapters 4, 7, 8, and 9. The lab component involves simulating a BJT common emitter voltage divider biased voltage amplifier and designing a 1 kHz relaxation oscillator with a 50% duty cycle using an op-amp, as well as designing a stable multivibrator circuit for various duty cycles and a window comparator for given UTP and LTP using the 741 op-amp.
Module 2: Digital Electronics - K-Maps and Quine-McCluskey Method
Module two is dedicated to the digital electronics part, focusing on simplifying Boolean expressions using K-maps (two, three, and four variable K-maps) and the Quine-McCluskey method. The module primarily covers K-map simplification and the Quine-McCluskey method for Boolean expressions. Textbook 1, chapters 5 and 6, are recommended. The lab component involves simplifying a four-variable logical expression using appropriate techniques and implementing it using basic gates.
Module 3: Combinational Circuit Design
Module three continues with combinational circuits, covering their design and simulation using gates. It includes a review of combinational circuit design, the design of circuits with limited gate fan-in, gate delay, timing diagrams, hazards in combinational circuits, and the simulation and testing of logic circuits. The second half of the module covers multiplexers, decoders, and programmable logic devices. Textbook 1, chapters 8 and 9, are recommended. The lab component includes simplifying a four-variable logical expression using K-maps or the Quine-McCluskey method and implementing it using an 8-to-1 multiplexer IC, as well as designing a binary-to-Gray and Gray-to-binary code converter.
Module 4: Introduction to VHDL
Module four introduces VHDL (Very High Speed Integrated Circuit Hardware Description Language), a hardware description language used for coding combinational circuits. Students will learn to write VHDL code for components like flip-flops and latches, which will then be simulated to produce the hardware functionality. The lab component involves simplifying a four-variable logical expression and simulating it using an HDL simulator like Xilinx Vivado or Cadence, as well as implementing a JK Master-Slave flip-flop using NAND gates, verifying its truth table, and implementing it using VHDL.
Module 5: Registers and Counters
Module five covers registers and counters, including different types of registers, register transfers, parallel adders with accumulators, and shift registers. It also discusses binary counters, counters for other sequences, and counter design using SR and JK flip-flops. Textbook 1, chapter 12, is recommended. The lab component includes designing a mod-N counter using a JK flip-flop IC and demonstrating its operation, as well as designing and implementing an asynchronous counter using a decade counter IC (specific IC provided) that counts from 0 to N (N ≤ 9) and displaying the count on a seven-segment display.
Course Outcomes and Assessment
The course aims to enable students to design and analyse analog circuits, digital-to-analog and analog-to-digital conversion circuits, and simplify digital circuits using K-maps and the Quine-McCluskey method. Students will also explain gates, flip-flops, and data processing circuits like counters and registers, and develop simple HDL programs using VHDL. The CIE for the theory part includes three tests (20 marks each, one hour duration) conducted in the 5th, 10th, and 15th weeks of the semester, and two assignments (10 marks each). Practical sessions are assessed using rubrics and viva, contributing 20 marks. The total CIE marks are 50, split between theory (30) and practical (20). Each lab experiment is evaluated for 15 marks based on record and conduction, with 5 marks for viva. These are consolidated and scaled down to 50 CIE marks.
Semester End Examination (SEE)
The semester-end examination consists of 20-mark questions from each module, with choices provided. Students must answer five full questions, selecting one from each module. The syllabus copy is available for download via a link provided with the video. The recommended textbook is "Analog and Digital Electronics" by Charles H. Roth, and four reference books are also listed, along with links to NPTEL courses for further learning and certification.
