15EC32T: Digital Electronics Electronics 3rd Sem Syllabus for Diploma DTE Karnataka C15 Scheme

Digital Electronics detail DTE Kar Diploma syllabus for Electronics And Communication Engineering (EC), C15 scheme is extracted from DTE Karnataka official website and presented for diploma students. The course code (15EC32T), and for exam duration, Teaching Hr/week, Practical Hr/week, Total Marks, internal marks, theory marks, duration and credits do visit complete sem subjects post given below. The syllabus PDFs can be downloaded from official website.

For all other electronics 3rd sem syllabus for diploma c15 scheme dte karnataka you can visit Electronics 3rd Sem Syllabus for Diploma C15 Scheme DTE Karnataka Subjects. The detail syllabus for digital electronics is as follows.

Pre-requisites:

Knowledge of basics of number systems and digital electronics.

Course Objectives:

1. Understand the working of various digital electronics circuits.
2. Apply principles of number systems and Boolean algebra to solve simple logical problems
3. Learn to design the simple digital circuits.
4. Enable to learn principles digital processors in higher learning

Course Outcomes:

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Unit 1: Combinational logic circuits 09 Hours

Introduction:
Combinational digital circuit.

Multiplexers:
definition, expression, truth-table, realization of simple (2:1) multiplexer using gates, and applications. Application of multiplexers to implement logic gates and simple sum-of-product equations, list of IC multiplexers and their features. Realization of higher-order multiplexer using lower-order multiplexer ICs.

Demultiplexer:
definition, expression, realization of simple (1:2) demultiplexer using gates, truth-table and applications, and list of IC demultiplexers and their features.

Decoders and encoders:
Definition and relevance of decoders and encoders. Logic diagram and truth-table of Decimal-to-BCD encoder and BCD-to-Decimal decoder. Identification of different decoder and encoder ICs. Need, logic diagram and truth table of BCD to 7-segment decoder. Concept and application of simple (maximum 4 bit) priority encoder.

Unit 2: Basic sequential circuits 09 Hours

Introduction to sequential circuits:
Comparison of combinational and sequential circuits. Definition of clock and triggering, types of triggering and their symbolic representations in logic circuits/diagrams.

Flip-flops:
Operation, gate-level circuit, symbol, truth-table and timing waveforms of clocked RS flip-flop and J-K flip-flop. Relevance of asynchronous inputs to flip-flops. Race-around problem and remedies, MS flip-flop, D and T flip-flop. Identify and list flip-flop ICs.

Timer 555:
Internal diagram of IC 555 and its application as astable and monostable multivibrators. Flip-flop as bistable multivibrator.

Unit 3: Registers and counters 10 Hours

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Unit 4: D to A and A to D Converters 09 Hours

Data/signal conversion:
Concept and need.

DAC:
Definition, symbolic representation, types, and applications. Circuit, functioning and output expression for 3 or 4-bit DAC using Resistive divider and binary-ladder network. DAC specifications- resolution, accuracy, settling time, speed, linearity and monotonicity, and simple problems. Identify IC DACs and list their features. ADC: Definition, types, applications, specifications-resolution, accuracy, non-linearity, and conversion time. Working of 3-bit or 4-bit flash type, successive approximation and dual-slope ADCs, and simple problems. Identify IC ADCs and list their features.

Unit 5: Memories and programmable devices 09Hours

Introduction:
Definition and relevance of memories.

Classification:
Based on fabrication material, data retention, speed, storage capacity, cost and application. Working principle and features of magnetic memory, ROM, PROM, EPROM, E2PROM, flash memory, static and dynamic RAM cells, DDR memory & its variants and disk memories. Memory accessing process in semiconductor, magnetic and disk memories. Memory word-size and capacity of memories with examples.

Programmable devices:
Difference between fixed logic and programmable logic, PLA and PAL-architecture, and implementation of simple Boolean equations.

Unit 6: Digital integrated circuits 06 Hours

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Reference Books:

1. Digital principles and applications. Donald P Leach, Albert Paul Malvino, Goutam Saha, McGraw Hill Publisher, 8th edition, ISBN 10: 9339203402 ISBN 13: 9789339203405
2. Digital Systems-principles and applications. Ronald J. Tocci, Neal S.Widmer, Gregory L.Moss, 10th edition,ISBN : 0131725793
3. Digital Electronics -principles and integrated circuits. Anil K. Maini. Wiley publications,first edition . ISBN: 978-0-470-03214-5
4. Digital Computer Fundamentals,- Thomas C Bailee ,McGraw-Hill Publisher,6th edition.ISBN 10: 0070038996/ISBN 13:9780070038998
5. Digital fundamentals -Floyd and Jain, PEARSON EDUCATION publication, 8th Edition , ISBN-13: 978-0132359238 ,ISBN-10: 0132359235
6. www.nptel.ac.in
7. http://freevideolectures.com/Course/3164/Digital-Electronics
8. http://www.freebyte.com/electronics/
9. https://www.circuitlogix.com
10. http://www.vlab.co.in
11. www.electronics-tutorials.ws
12. http://www.allaboutcircuits.com
13. http://ocw.mit.edu/

Course Delivery:

The course will be delivered through lectures, presentations and support of modern tools. Student activities are off-class

Student Activity (5 marks)

The following student activities or similar activities can be assigned for assessing CIE/IA marks

1. Collect the information about the different types of display devices used in digital circuits and carry out a seminar
2. Collect the specification sheets, availability and cost of any two ADC and DAC ICs
3. Prepare a block diagram approach to construct a digital clock or a frequency counter or a digital voltmeter or any other similar digital electronic circuits and analyze the cost of the application
4. Prepare a note on E-waste and disposal of PCBs and ICs, carry out a seminar
5. Design and simulate the working of any simple logic circuit using a suitable modern software tool

Execution Notes:

1. Maximum of 2 students in each batch for student activity
2. Above activities may be distributed among different batches; activity No. 5 is mandatory and any one activity among 1 to4 or any similar activities per batch may be assigned by the teacher based on interest of the students.
3. Project activities shall be carried out throughout the semester and present the project report at the end of the semester; concerned teacher is expected to observe and record the progress of students’ activities
4. Submit qualitative hand-written report not exceeding 6 pages; one report per batch
5. Each of the activity can be carried out off-class well in advance; however, demonstration/presentation should be done during laboratory sessions
6. Assessment shall be based on quality of work as prescribed by the table

Model Question Paper:

for CIE

1. Define a demultiplexer and construct a 1 :4 demultiplexer using logic gates
2. Illustrate use of multiplexer to realize y=ABC +ABC+ABC OR Show howto realize 2-iput NOR gate using a multiplexer IC
3. Define combinational and sequential circuits and compare them
4. Identify the problems associated with JK flip-flop and modify JK flip-flop or suggest remedy to overcome the problem OR Write the JK flip-flop gate-level diagram and convert it to D flip-flop

Model Question Paper:

Part A

1. Define combinational and sequential digital circuits with examples.
2. Describe the functioning of RS flip-flop with gate-level circuit and truth table.
3. Define shift register and list different types of data movements in it.
4. Sketch the timing diagram for serial shifting of 101 data in 3-bit shift register.
5. Define resolution, accuracy, settling time, monotonicity, and speed as related to DAC.
6. List the features of magnetic memories.
7. Explain the working principle of Dynamic RAM cell.
8. Compare PLA and PAL.
9. Describe briefly the operation of TTL NAND gate with circuit.

Part B

1. Construct 4:1 multiplexer using 2:1 multiplexers.
2. Illustrate use of multiplexer in implementation of simple Boolean functions with example.
1. Explain the role of BCD to 7-segment decoder in numbers display.
2. Discuss the role of control signals in demultiplexer circuit.
1. Explain the function ofD flip-flop and also write truth-table.
2. Calculate the frequency at Q of JK flip-flop if it is triggered by 1 KHz clock signal under toggle mode, and sketch the input and output signals.
4. Show how to configure 555 timer as monostable multivibrator and astable multivibrator.
5. Construct a mod-7 counter and explain its functioning with the help of truth table and timing waveforms.
6. Show how to configure 7490 IC as decade counter and write its truth table.
7. Explain a binary ladder network of DACwith expression output. List its advantages.
1. Calculate the resolution of a 4-bit DAC in terms of percentage of full-scale voltage
2. For a 5-bit resistive divider, determine the following
1. the weight assigned to the LSB.
2. The change in the output voltage due to a change in the LSB.
3. The output voltage for a digital input of 10110. Assume 0= 0 V and 1= + 10 V.
1. Calculate the number of address lines required to access 512 Kilo bytes of memory and calculate how many bytes of memory can be accessed with 15 address lines assuming byte addressable memory.
2. Identify the functional pins required for a typical RAM IC.
1. Explain the functioning of CMOS inverter.
2. List the voltage levels of TTL family.

Institutional activities (No marks)

The following are suggested institutional activities, to be carried out at least one during the semester. The course teacher/coordinator is expected to maintain the relevant record (Containing, Activity name, Resource persons and their details, duration, venue, student feedback, etc) pertaining to Institutional activities.

1. Organize Seminar, workshop or Lecture from experts on the modern trends/developments in digital electronics.
2. Organize hands-on practice on design and simulation of digital circuits.
3. Motivate students to take case study on different digital electronics-based mini projects to inculcate self and continuous learning.

For detail syllabus of all other subjects of BE Electronics, C15 scheme do visit Electronics 3rd Sem syllabus for C15 scheme.

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