Electronics III
Code
10922
Academic unit
Faculdade de Ciências e Tecnologia
Department
Departamento de Engenharia Electrotécnica
Credits
6.0
Teacher in charge
João Pedro Abreu de Oliveira
Weekly hours
4
Total hours
54
Teaching language
Português
Objectives
n the field of baseband circuit design, the course will focus the study on two important analog functions: analog-digital / digital-analog conversion, and phase-lock capture.
In the area of analog to digital conversion, and vice-versa, Nyquist and Sigma-Delta type converters are analyzed and projected.
The Phase-Lock Loop (PLL) basic operation is presented based on a linear model valid when the circuit is in lock state.
The student will develop the ability to solve problems, work in a team and autonomously. Students also will learn how to improve their ability to manage the available time. Special attention is given to the ability of written and oral presentation of the work.
Prerequisites
Basic knowledge on MOS devices and switched capacitor circuit operation is required.
Subject matter
The syllabus of the course is:
Data conversion
¨ Principles of A/D and D/A
¨ Sampling
¨ Useful metrics
Nyquist data converters
¨ Digital to analog converter architectures
¨ Analog to digital converter architectures
Oversampling data converters
¨ First and second order sigma delta modulators modulators
¨ Cascaded SD architectures
¨ Interpolation and decimation filters
PLL : Phase lock loop
¨ Basic principle
¨ Architecture
¨ Building blocks
¨ Lock and phase capturing behavior
¨ Applications
Bibliography
“Analog Integrated Circuit Design” by David Johns and Ken Martin ISBN: 0471144487
“Understanding Delta-Sigma Data Converters” by Richard Schreier and Gabor C. Temes ISBN: 0471465852
Dan H. Wolaver, “Phase-Locked Loop Circuit Design”, Prentice Hall, 1991
IEEE data base
Teaching method
Theoretical exposition of the subjects complemented by problem solving. Audiovisual aids are used. Laboratorial work about A/D, D/A and PLL systems, using both hardware and software implementations.
Evaluation method
Evaluation Methods
The stundents are evaluated based on two components: theory (T) and laboratory (T). The final grade is calculated using the formula Gf=0.6*T+0.4*P. The grade ranges from 0 to 20 values where 9.5 is considered a positive grade. In order to have a positive grade it is necessary that both T and L are larger than 9.5 values.
The students must have a positive grade in the lab components in order to be evaluated in the theory component. This means that the student must do 3 lab projects and writing the corresponding reports.
The theory component is obtained either by a final exam or by 3 tests. The grade of the last test must be larger than 8 values.