Showing posts with label Digital. Show all posts
Showing posts with label Digital. Show all posts

August 02, 2014

4 bit Synchronous / Asynchronous counter

Detailed explanation to understand synchronous and asynchronous counters. The below file is sourced from www.allaboutcircuits.com

Download Links:

  1. 4 bit Asynchronous Counter.pdf
  2. 4 bit Synchronous Counter.pdf

June 02, 2014

EI2353 - Digital System Design - 2 Marks with Answers.pdf



2 mark question and answers for  EI2353 - Digital System Design seventh semester EIE. As per Anna Univ R2008.



November 22, 2013

EI2353 - Digital System Design - 2 Marks with Answers

Digital System Design 2 marks for all 5 units for Instrumentation students as per Anna university syllabus Regulation 2008.
http://www.mediafire.com/view/51a4kaovyankgxe/EI2353%20-%20Digital%20System%20Design%20-%202%20Marks%20with%20Answers.pdf

EC2361 - Digital Signal Processing - 2 Marks with answers

Digital Signal Processing 2 Marks with answers for all five units For EIE students as per Anna University R2008.

 Click to Download

November 18, 2013

EC2301 - Digital Communication_Handwritten notes

Syllabus

UNIT I DIGITAL COMMUNICATION SYSTEM                                                                    8

Introduction to Analog Pulse Communication Systems - Digital Communication Systems
-     Functional description, Channel classification, Performance Measure; Geometric representation of Signals, Bandwidth , Mathematical Models of Communication Channel.

UNIT II BASEBAND FORMATTING TECHNIQUES                                                           10

Sampling - Impulse sampling, Natural Sampling, Sampler Implementation; Quantisation
-     Uniform and Non-uniform; Encoding Techniques for Analog Sources- Temporal waveform encoding, Spectral waveform encoding, Model-based encoding, Comparison of speech encoding methods.

UNIT III BASEBAND CODING TECHNIQUES                                                                     9

Error Control Codes - Block Codes , Convolutional Codes, Concept of Error Free Communication; Classification of line codes, desirable characteristics and power spectra of line codes.

UNIT IV BASEBAND RECEPTION TECHNIQUES                                                               9

Noise in Communication Systems; Receiving Filter - Correlator type, Matched Filter type; Equalising Filter - Signal and system design for ISI elimination, Implementation, Eye Pattern analysis; Synchronisation; Detector - Maximum Likelihood Detector, Error Probability, Figure-of-Merit for Digital Detection.

UNIT V BANDPASS SIGNAL TRANSMISSION AND RECEPTION                                  9

Memory less modulation methods - Representation and Spectral characteristics, ASK, PSK, QAM, QPSK, FSK; Bandpass receiving filter, Error performance - Coherent and Non-coherent detection systems.

TOTAL: 45 PERIODS
 
TEXT BOOKS:
1.    Amitabha Bhattacharya, "Digital Communications", Tata McGraw Hill, 2006.
2.     Simon Haykin, "Digital Communications", John Wiley, 2006.
REFERENCES:
1.    John.G. Proakis, "Fundamentals of Communication Systems", Pearson Education, 2006.
2.    Michael. B. Purrsley, "Introduction to Digital Communication", Pearson Education, 2006.
Bernard Sklar, Digital Communication, 2nd Edition, Paerson Education, 2006

Download Link (5 Files_indiv)
(.pdf_2.5Mb, Password: dgpride.com) 

OR

(Password: dgpride.com) 

October 20, 2013

Animations | Electronic Devices and Circuits

To understand clearly how electronic devices and several electronic and digital circuits work, animations will be of great help and ease. Visit falstad.com
You would need Java plugin.

Index

September 20, 2013

October 29, 2012

Digital Electronics & System - A detailed presentation by N. J. Rao (IISc) -pdf

Module 1: Number Systems and Codes
Number systems: Binary, octal, and hexa-decimal number systems, binary arithmetic. Codes: Binary code, excess-3 code, gray code, and error detection and correction codes.
Module 2: Boolean Algebra and Logic Functions
Boolean algebra: Postulates and theorems. Logic functions, minimization of Boolean functions using algebraic, Karnaugh map and Quine – McClausky methods. Realization using logic gates
Module 3: Logic Families
Logic families: Characteristics of logic families. TTL, CMOS, and ECL families.
Module 4: Combinational Functions
Realizing logical expressions using different logic gates and comparing their performance. Hardware aspects logic gates and combinational ICs: delays and hazards. Design of combinational circuits using combinational ICs: Combinational functions: code conversion, decoding, comparison, multiplexing, de-multiplexing, addition, and subtraction.
Module 5: Analysis of Sequential Circuits
Structure of sequential circuits: Moore and Melay machines. Flip-flops, excitation tables, conversions, practical clocking aspects concerning flip-flops, timing and triggering considerations. Analysis of sequential circuits: State tables, state diagrams and timing diagrams.
Module 6: Designing with Sequential MSIs
Realization of sequential functions using sequential MSIs: counting, shifting, sequence generation, and sequence detection.
Module 7: PLDs
Programmable Logic Devices: Architecture and characteristics of PLDs.
Module 8: Design of Digital Systems
State diagrams and their features. Design flow: functional partitioning, timing relationships, state assignment, output racing. Examples on design of digital systems using PLDs.

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