DIPARTIMENTO DI INGEGNERIA INDUSTRIALE E DELL'INFORMAZIONE
Corso di studio
Primo Semestre (01/10/2018 - 18/01/2019)
48 ore di attività frontale
SCRITTO E ORALE CONGIUNTI
The course mixes interdisciplinary aspects of electronic engineering. Although a review of background concepts is scheduled in the lectures, basic knowledge of analog circuits design, communication systems, signal processing and fundamentals of electromagnetic fields and propagation are recommended prerequisites for successfully attending the course.
The course is planned for students interested in deepening the knowledge of advanced IC design for high speed communications. In particular, the course addresses the main aspects that concern the realization in CMOS technology of the electronic interfaces for very high speed base-band digital transmission and reception. Applications span from computer interfaces (processor-to-memory, processor-to-peripherals.) to wired and optical communications at speed beyond 10Gbit/sec. The student will be able to design the transceivers architectures and building blocks. Starting from a behavioral description of the functionality of the systems, the course will go up to the schematics and circuit design of the components. More specifically, the students will learn the key aspects of signal integrity, wide band amplification techniques, high speed equalizers and systems for clock generation and recovery (PLL, DLL, CDR). Practical activities (laboratory) are planned. The students will gain the competences required for system planning and to design the main building blocks for high speed communications over cable and optical channels.
Programma e contenuti
Binary signals and transmission channels
Properties of the random binary signals. Effects of noise, jitter and bandwidth limitations. Characteristics and limitations of wired channels (attenuation, reflections, dispersion, noise and cross-talk) and optical channels (lasers, photodiodes, single- and multi-mode fibers)
Amplifiers and drivers
Drivers for wireline and semiconductor lasers. Trans-impedance amplifiers, programmable-gain amplifiers, limiters, high-speed comparators. Broad-band circuit techniques: inductive-peaking, Cherry-Hopper amplifier, distributed amplification.
General concepts and system analysis. Fully analog and mixed-signal equalizers (Transmitter pre-emphasis, Feed-forward Equalizers, Decision-Feedback equalizers). Circuit topologies for very high speed. Adaptation algorithms e techniques.
Generation and recovery of the clock signals
General concepts and system analysis. Phase Locked Loops, Delay Locked Loops. Phase detectors for random binary signals, phase interpolators. Architectures of Clock and Data Recovery. Circuit design for highly integrated solutions.
Programming language for the behavioral description of analog circuits: Verilog-A. Behavioral simulation of a complete transceiver for Gbit/sec communications. Circuit design of the key building blocks with CMOS technology.
Lectures with a problem-solving approach and practical activities focused on realist test cases.
Testi di riferimento
Slides and lecture notes will be distributed.
W. J. Dally , J. W. Poulton. Digital Systems Engineering. Cambridge University Press.
B. Razavi. Design of Integrated Circuits for Optical Communications. McGraw-Hill.
S.H. Hall and H. L. Heck. Advanced Signal Integrity For High-Speed Digital Designs. John Wiley & Sons.
Modalità verifica apprendimento
An individual project will be assigned to each student. The discussion of the achieved results will be the basis of the oral examination. The examination will continue with a discussion around all the topics of the course
Obiettivi Agenda 2030 per lo sviluppo sostenibile