1.   ANALOG  COMMUNICATION  (TA)   2-1-0

 Module I

Telephone systems -electronic telephone-digital switching -trunk circuits -private telephone networks.

Amplitude modulation- Frequency spectrum, power relation, DSB-SC modulation, modulation and demodulation circuits, AM transmitters. Receivers- Superheterodyne receivers, tracking, sensitivity and gain, image rejection and AGC, double conversion receivers, single conversion receivers, Single side band modulation - principle, balanced modulation, SSB generation and reception, companded SSB. 

Module II

Angle modulation- FM spectrum, modulation index, phase modulation, comparison of various modulation schemes, angle modulation and demodulation circuits, AFC, amplitude limiters, pre-emphasis and de-emphasis, FM broadcast transmitters and receivers.

Noise in analog modulation systems- Noise in linear receivers using coherent detection, noise in AM receivers using envelope detection, noise in FM receivers.

Module III  (Quantitative Approach)

Probability Concepts, Random Variables, Statistical averages.

Random Processes - Introduction, definition, stationary processes, mean, correlation and covariance functions- properties of Auto correlation & cross correlation functions. Ergodic processes, transmission of Random Processes, power spectral density and its properties, cross spectral densities. Guassian process- central limit theorem, properties.

Noise - Shot noise, thermal noise and white noise, S/N ratio, noise figure, narrow band noise, representation in terms of in-phase and quadrature components, envelope and phase components, sine wave plus narrow band noise. 

Text Books:

1. Dennis Roody & John Coolen:  Electronic Communication, PHI, 4th edn.

2. Simon Haykin:  Communication Systems, 4th edn, John Wiley & Sons. 

References:

1.Proakis and Salehi: Communication System Engineering, 2nd edn., Pearson Education.

2. George Kennedy: Communication Systems, 3 ed., Tata McGraw Hill.

3. B P Lathi: Modern Digital and Analog Communication Systems, 3 edn., Oxford

   University Press.

4. Leon W.Couch II : Digital and Analog Communication Systems, 6th edn, Pearson

   Education.

Question Paper

The Question paper will consist of two parts. Part1 is to cover entire syllabus, and compulsory for 40 marks. This may contain 20 questions of 2 marks each.

Part II is to cover 3 modules. There can be 3 questions from each module (10 marks each) out of which 2 are to be answered, or there will be two questions from each module (20 marks each) out of which one is to be answered. 

03.404SIGNALS & SYSTEMS      (TA) 3-1-0


Module I  (Quantitative Approach)

Introduction - continuous time & discrete time signals, Basic operations on signals-operations on dependent and independent variables, elementary signals- exponential, sinusoidal, step, impulse and ramp functions, Continuous time & Discrete time systems - system properties-- memory, invertibility, linearity, time invariance, causality, stability,   Impulse response & step response of systems, convolution.

Fourier series representation of continuous time and discrete time periodic signals. 

Module II (Quantitative Approach)

Continuous Time Fourier Transform - properties - systems characterized by differential equations. Discrete Time Fourier Transform - properties - systems characterized by difference equations . Sampling theorem - Reconstruction - Aliasing. 

Module III (Quantitative Approach)

The Laplace Transform - ROC - Inverse transform - properties - Analysis of LTI systems using Laplace Transform - unilateral Laplace Transform.

The Z transform - ROC - Inverse transform - properties - Analysis of LTI systems using Z transforms - unilateral Z transform. 

Text Book :

Alen V Oppenheim, Alen S Willsky :  Signals & Systems,  2nd  edn., Pearson Education.

References:

1. Rodger E. Ziemer:   Signals & Systems - Continuous and Discrete 4th Edn., Pearson

   Education.

2. Asok Ambardar :  Analog and Digital  Signal  Processing, Thomson Learning.

3.  B P. Lathi:  Linear Systems and Signal Processing, Oxford Publication.

 

Question Paper

The question paper shall consist of two parts. Part I is to cover the entire syllabus, and carries 40 marks. This shall contain 10 compulsory questions of 4 marks each. Part II is to cover 3 modules, and carries 60 marks. There shall be 3 questions from each module (10 marks each) out of which 2 are to be answered.


03.405    ELECTRONIC   CIRCUITS - II    (TA)      3-1-0

Module I

High frequency equivalent circuits of BJTs, MOSFETs, Miller effect, short circuit current gain, s-domain analysis, amplifier transfer function. Low frequency and high frequency response of CE, CB, CC and CS, CG, CD amplifiers. Frequency response of cascade, cascode  and Differential (emitter coupled) amplifiers. 

Module II

Differential Amplifiers - BJT differential pair, large signal and small signal analysis of differential amplifiers, Input resistance, voltage gain, CMRR, non ideal characteristics of differential amplifier. Current sources, mirrors, Active load. MOS differential amplifiers, multistage differential amplifiers.

Analysis of BJT tuned amplifiers, synchronous and stagger tuning. Analysis of High frequency oscillators- Hartley, Colpitts, Clapp and crystal oscillators. 

Module III

Feed back amplifiers (discrete only) - Properties of negative feed back. The four basic feed back topologies-Series-shunt, series-series, shunt-shunt, shunt-series, loop gain, Bode plot of multistage Amplifier, Stability, effect of feedback on amplifier poles, frequency compensation-Dominant and Pole-zero.

Sweep circuits- Miller and Bootstrap. 

Text books 

  1. Sedra and Smith : Microelectronic Circuits,  IV Ed., Oxford University Press 1998.
  2. Millman and Taub: Pulse Digital and Switching Waveforms, Tata McGraw Hill.

 

References:

  1. Millmann and Halkias:  Integrated Electronics ,  Tata McGraw Hill.
  2. R E Boylstad and L Nashelsky:  Electronic Devices and Circuit Theory, Prentice Hall of India  2002.
  3. Gopakumar:  Design and Analysis of Electronic Circuits,  Phasor books.
  4. Neamen, Donald:  Electronic Circuit Analysis and Design, Tata McGraw Hill.
  5. Spencer & Ghausi : Introduction to ElectronicCircuit Design, Pearson Education  2003.

Question Paper

The question paper shall consist of two parts. Part I is to cover the entire syllabus, and carries 40 marks. This shall contain 10 compulsory questions of 4 marks each. Part II is to cover 3 modules, and carries 60 marks. There shall be 3 questions from each module (10 marks each) out of which 2 are to be answered.


03.406          DIGITAL ELECTRONICS (TA)         Â Â 2-1-0


Module I

Review of Boolean algebra- rules, laws and theorems - sum of product and product of sum simplification, Karnaugh map (upto 4 variables), completely and incompletely specified functions, Quine McCluskey method (upto 5 variables). Combinational logic circuits- adders, subtractors, ripple carry and look ahead carry adders, comparators, decoders, encoders, multiplexers, demultiplexers. Introduction to VHDL. Logic gates, decoders, encoders in VHDL, adders in VHDL. Memories - ROM- organisation, expansion. PROMs, RAMs - Basic structure, 2-dimensional organization, Static and dynamic RAMs

Module II

Integrated Circuit technologies - Characteristics and Parameters. TTL Circuits - NOT, NAND, NOR, Open collector, tristate gates, positive and negative logic, ECL OR-NOR, IIL, CMOS- NOR, NOT, NAND, comparison.

Differences between combinational and sequential circuits - flip flops - SR, JK, D, T, Master slave, characteristic equations, conversion of one type of flip flop into another, Shift register, Universal shift register, applications. Binary counters - Synchronous and Asynchronous- design, Counters for random sequence- design. Multivibrators - astable and monostable multivibrators using gates, 74121 and  74123. 

Module III

Analysis of synchronous sequential circuits - Synchronous sequential machine - The moore machine, mealy machine, timing diagram. Design of synchronous sequential circuits - examples, State diagram, State table, State transition and output tables, logic diagram, Analysis of synchronous sequential circuits - examples. Asynchronous sequential circuit - basic structure, equivalence and minimization, minimization of completely specified machines, State simplification of redundant states, Incompletely specified machines. Hazards - causes of hazards, Logic hazards, essential hazards, function hazards, design of hazard free combinational networks.

Text Books:

  1. C.H. Roth,Jr. : Fundamentals of Logic Design, 5th Edn., Thomson Learning.
  2. B. Somanathan Nair : Digital Electronics and Logic Design,  PHI,  2002.

References:

  1. Anand Kumar A.:  Fundamentals of  Digital Circuits, PHI.
  2. Yarbrough, John M  : Digital logic- Application and Design, Vikas Thomson Learning, New Delhi.
  3. John F Wakerly :  Digital Design  Principles and Practice, Pearson Education.
  4. C. H. Thomas L Floyd:  Digital Fundamentals,  Pearson Education, 8th Edn
  5. M. Moris Mano : Digital Design ,  Pearson Education, 3rd Edn.

Question Paper

The question paper shall consist of two parts. Part I is to cover the entire syllabus, and carries 40 marks. This shall contain 10 compulsory questions of 4 marks each. Part II is to cover 3 modules, and carries 60 marks. There shall be 3 questions from each module (10 marks each) out of which 2 are to be answered.

03.407        PROGRAMMING & SIMULATION LAB   (TA)         0-0-4

Introduction to SPICE

Models of resistor, capacitor, inductor, energy sources (VCVS, CCVS, Sinusoidal source, pulse, etc), transformer.

Models of DIODE, BJT, FET, MOSFET, etc. sub circuits.

Simulation of following circuits using spice (Schematic entry of circuits using standard packages. Analysis- transient, AC, DC, etc.):

  1. Potential divider.
  2. Integrator & Differentiator (I/P PULSE) - Frequency response of RC circuits.
  3. Diode Characteristics.
  4. BJT Characteristics.
  5. FET Characteristics.
  6. MOS characteristics.
  7. Full wave rectifiers (Transient analysis) including filter circuits.
  8. Voltage Regulators.
  9. Sweep Circuits.
  10. RC Coupled amplifiers - Transient analysis and Frequency response.
  11. FET & MOSFET amplifiers.
  12. Multivibrators.
  13. Oscillators (RF & AF).

MATLAB:

Introduction to Matlab,  study of matlab functions. Writing simple programs using matlab, for handling arrays, files, plotting of functions etc.  

Writing M files for

Creation of analog & discrete signals, plotting of signals etc.

Filtering of analog & digital signals using convolution

Generation of noise signals (Gaussian, random, Poisson etc)

Simulation using  Simulink.

Simulation study

(A)Design of analog low pass, bandpass, high pass and band elimination filters

     using Butterworth, Chebyshev etc.

(B) Anti-aliasing filters

(C) Bode plot

(D) Steady state and Transient analysis

(E) Z Transforms

(F) Fourier Analysis 

Note: 

For University examination, the following guidelines should be followed regarding award of marks:

(a) Programming and design -40%

(b) Result & Performance      -35%

(c) Viva voce                       -25%

Practical examination to be conducted covering entire syllabus given above.  

03.408   ELECTRONIC CIRCUITS LAB    0-0-4

  1. Feed back amplifiers(current series, voltage series). Gain and frequency response
  2. Power amplifiers(transformer less), Class B and Class AB. Measurement of Power.
  3. Differential amplifiers. Measurement of CMRR
  4. Cascade and cascode amplifiers. Frequency response.
  5. Phase shift, Wein bridge, Hartley and Colpitts Oscillators, UJT Oscillators
  6. Astable, Monostable and Bistable multivibrator circuits
  7. Schmitt trigger circuits.
  8. Tuned amplifiers, frequency response.
  9. Series voltage regulator circuits.
  10. Bootstrap sweep circuit.

 Note 

For University examination, the following guidelines should be followed regarding award of marks

(a) Circuit and design -25%

(b) Result & Performance -50%

(c) Viva voce  -25% 

Practical examination to be conducted covering entire syllabus given above