PART-I : ANALOG FILTERS
1. Introduction :
Kinds of Filters, Magnitude & attenuation characteristics, Magnitude & Frequency scaling, First Order Filter circuits.
2. Realization of Transfer function of filters using Inverting & Non-inverting OPAMP circuits, All Pass circuits.
3. The Biquad Ckt. :
Design parameter Q & Wo. The Biqued ckt. frequency & phase response, four OPAMP Biquad
ckt.
4. Butterworth Low Pass Filters :
The ideal low pass filter Butterworth response, Butterworth pole locations, Low pass filter specifications, Sallen & Key ckt., RC-CR transformation.
5. Butterworth Band-pass Filters :
A frequency transformation, Geffe algorithm, Deliyanis-Friend ckt., Filter design.
6. Passive Filters :
Properties of lossless ladders, Darlington's method of synthesis, Frequency Transformed ladder design.
7. Introduction to Chebyshev, Band elimination and switch capacitor filters.
PART II : DIGITAL FILTERS
8. Introduction & Motivation :
What is Filter ? Digital v/s Analog filters, Sampling, Definition of Digital Filters, Impulse responses, Properties of Digital Filters, Combination of Digital Filters.
9. Frequency Response :
Magic Function, Eigen function, Frequency responses of Digital Filters, Properties of frequency response, Parallel & Cascade Filters, Application - Integrators & Differentiators.
10. Design of Non-Recursive Filters :
Design Criteria, Minimising the Design criterion, Fourier Design method, Length of the filter.
11. Windowing :
Windows, Window responses & convolution, Window response of the uniform window, Window characteristics.
12. Recursive Filters & Z-transform :
Z-transforms, Poles & Zeros of the system , Stability.
* Books :
1. Analog Filter Design by Van Valkenburg
2. Digital Filter Design by Williams (PHI - International)
