Anna university :: chennai 600 025
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UNIT I FFT 9Introduction to DFT – Efficient computation of DFT Properties of DFT – FFT algorithms – Radix-2 FFT algorithms – Decimation in Time – Decimation in Frequency algorithms –Use of FFT algorithms in Linear Filtering and correlation. UNIT II DIGITAL FILTERS DESIGN 9Amplitude and phase responses of FIR filters – Linear phase filters – Windowing techniques for design of Linear phase FIR filters – Rectangular, Hamming, Kaiser windows – frequency sampling techniques – IIR Filters – Magnitude response – Phase response – group delay - Design of Low Pass Butterworth filters (low pass) - Bilinear transformation – prewarping, impulse invariant transformation. UNIT III FINITE WORD LENGTH EFFECTS 9 Quantization noise – derivation for quantization noise power – Fixed point and binary floating point number representation – comparison – over flow error – truncation error – co-efficient quantization error - limit cycle oscillation – signal scaling – analytical model of sample and hold operations. UNIT IV POWER SPECTRUM ESTIMATION 9 Computation of Energy density spectrum – auto correlation and power spectrum of random signals. Periodogram – use of DFT in power spectrum estimation – Non parametric methods for power spectral estimation: Bartlett and Welch methods – Blackman and Tukey method. UNIT V DIGITAL SIGNAL PROCESSORS 9 Introduction to DSP architecture – Harvard architecture - Dedicated MAC unit - Multiple ALUs, Advanced addressing modes, Pipelining, Overview of instruction set of TMS320C5X and C54X. TUTORIAL 15 TOTAL : 60 TEXT BOOKS
REFERENCES
EC1303 MICROPROCESSORS AND MICROCONTROLLERS 3 0 0 100 AIM To learn the architecture programming and interfacing of microprocessors and microcontrollers. OBJECTIVES
UNIT I 8085 CPU 9 8085 Architecture – Instruction set – Addressing modes – Timing diagrams – Assembly language programming – Counters – Time Delays – Interrupts – Memory interfacing – Interfacing, I/O devices. UNIT II PERIPHERALS INTERFACING 9 Interfacing Serial I/O (8251)- parallel I/O (8255) –Keyboard and Display controller (8279) – ADC/DAC interfacing – Inter Integrated Circuits interfacing (I2C Standard)- Bus: RS232C-RS485-GPIB
Intel 8086 Internal Architecture – 8086 Addressing modes- Instruction set- 8086 Assembly language Programming–Interrupts. UNIT IV 8051 MICROCONTROLLER 9 8051 Micro controller hardware- I/O pins, ports and circuits- External memory –Counters and Timers-Serial Data I/O- Interrupts-Interfacing to external memory and 8255. UNIT V 8051 PROGRAMMING AND APPLICATIONS 9 8051 instruction set – Addressing modes – Assembly language programming – I/O port programming -Timer and counter programming – Serial Communication – Interrupt programming –8051 Interfacing: LCD, ADC, Sensors, Stepper Motors, Keyboard and DAC. TOTAL : 45 TEXT BOOKS
REFERENCES
EC1304 ELECTRONIC CIRCUITS II 3 1 0 100 AIM The aim of this course is to familiarize the student with the analysis and design of feed back amplifiers, oscillators, tuned amplifiers, wave shaping circuits, multivibrators and blocking oscillators. OBJECTIVES On completion of this course the student will understand
UNIT 1 FEEDBACK AMPLIFIERS 9 Block diagram. Loop gain. Gain with feedback. Desensitivity of gain. Distortion and cut off frequencies with feedback. The four basic feedback topologies and the type of gain stabilized by each type of feedback. Input and Output resistances with feedback. Method of identifying feedback topology, feedback factor and basic amplifier configuration with loading effect of feedback network taken into account. Analysis of feedback amplifiers. Nyquist criterion for stability of feedback amplifiers. UNIT II OSCILLATORS 9 Barkhausen Criterion. Mechanism for start of oscillation and stabilization of amplitude. Analysis of Oscillator using Cascade connection of one RC and one CR filters. RC phase shift Oscillator. Wienbridge Oscillator and twin-T Oscillators. Analysis of LC Oscillators, Colpitts, Hartley, Clapp, Miller and Pierce oscillators. Frequency range of RC and LC Oscillators. Quartz Crystal Construction. Electrical equivalent circuit of Crystal. Crystal Oscillator circuits. UNIT III TUNED AMPLIFIERS 9 Coil losses, unloaded and loaded Q of tank circuits. Analysis of single tuned and synchronously tuned amplifiers. Instability of tuned amplifiers. Stabilization techniques. Narrow band neutralization using coil. Broad banding using Hazeltine neutralization. Class C tuned amplifiers and their applications. Efficiency of Class C tuned Amplifier. UNIT IV WAVE SHAPING AND MULTIVIBRATOR CIRCUITS 9 RL & RC Integrator and Differentiator circuits. Diode clippers, clampers and slicers. Collector coupled and Emitter coupled Astable multivibrator. Monostable multivibrator. Bistable multivibrators. Triggering methods. Storage delay and calculation of switching times. Speed up capacitors. Schmitt trigger circuit. UNIT V BLOCKING OSCILLATORS AND TIMEBASE GENERATORS 9 Monostable and Astable Blocking Oscillators using Emitter and base timing. Frequency control using core saturation. Pushpull operation of Astable blocking oscillator i.e., inverters. Pulse transformers. UJT sawtooth generators. Linearization using constant current circuit. Bootstrap and Miller saw-tooth generators. Current time base generators. TUTORIAL 15 TOTAL : 60 TEXT BOOKS
REFERENCES 1. Sedra / Smith, “Micro Electronic Circuits” Oxford university Press, 2004. 2. David A. Bell, " Solid State Pulse Circuits ", Prentice Hall of India, 1992.
To lay a strong foundation on the theory of transmission lines and wave guides by highlighting their applications. OBJECTIVES
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