Signal Integrity for High-Speed Digital Designs

Course title

G0028000

	KOIKE Yoshikazu
	ISHIKAWA Hiroyasu
	PREMACHANDRA CHINTHAKA
	YAMAGUCHI Masaki
and more...
	MAEDA Tadashi

Course description

Recent electronic system has extra high clock frequencies over GHz. This leads to high transmission speed on the printed circuit-board. In this situation, the system being designed without knowing the high-frequency phenomena, may cause malfunction. In this lecture, signal integrity for high-speed digital designs are discussed. Especially, signal reflection and loss, crosstalk mechanism, and impedance matching techniques by using Smith Chart are discussed in detail.

Purpose of class

High-speed systems being designed without knowing high-frequency phenomena may cause serious malfunction. So, high-speed system designers should have knowledge of techniques to prevent signal waveform deterioration at high frequencies.

Goals and objectives

Students who acquired the credit can explain characteristic impedance of transmission line and impedance matching techniques.
Students who acquired the credit can explain signal reflection and crosstalknoise in the transmission line, and also explain the mathematical analysis method.
Students who acquired the credit can explain signal power loss at high frequencies, and also explain electromagnetic wave generation due to return current.
Students who acquired the credit can design impedance matching circuit by using Smith Chart, and also explain S-parameter and a circuit frequency response.

Relationship between 'Goals and Objectives' and 'Course Outcomes'

	short report	mid-term exam	term-exam	Total.
1.	10%	15%		25%
2.	10%	15%		25%
3.	10%		15%	25%
4.	10%		15%	25%
Total.	40%	30%	30%	-

Evaluation method and criteria

The grade will be evaluated by short report (40%), mid-term exam (30%), and term exam (30%). To acquire a credit, total score more than 60 is needed.
60% evaluation criteria: Students can describe the appropriate formulas in the report.
You can see text book and distributed materials.

Language

Japanese

Class schedule

	Class schedule	HW assignments (Including preparation and review of the class.)	Amount of Time Required
1.	Frequency response of a circuit : Frequency response of transmission line and circuit. : Frequency response of pulse..	Prepare for Linear time-invariant systems in the file distributed beforehand.	150minutes
2.	DC characteristics of CMOS circuit Transient operation of CMOS circuit distributed constant circuit. Boundary between distributed constant line and lumped constant line.	Review CMOS circuit.	150minutes
3.	Characteristic impedance of distributed constant circuit. : Examples of distributed constant circuit. : Equivalent circuit of distributed constant circuit. : Measurement method of characteristic impedance.	Review distributed constant circuit.	150minutes
4.	Signal reflection and impedance matching technique. : Phenomenon of signal reflection. : Signal reflection at transmitting end. : Signal reflection at branch point. : Multiple reflection in transmission line. : Prevention of signal reflection by using impedance matching technique.	Review signal reflection phenomena in distributed constant circuit.	150minutes
5.	Signal power loss at high frequency. : Origin of signal power loss. : Conductor-loss and dielectric-loss. : Skin-effect. : Dielectric loss tangent.	Prepare for signal power loss in the file distributed beforehand.	150minutes
6.	Crosstalk noise. : Crosstalk definition and classfication. : Crosstalk mechanism. : Analysis of crosstalk noise in transmission line. : Main factor of causing crosstalk noise.	Prepare for crosstalk mechanism in the file distributed beforehand.	150minutes
7.	Mid-term summary and report.	review all the items learned.	430minutes
8.	S-parameter (Scattering parameter). : Nessesity of S-parameter. : Definition of S-parameter. : return loss (reflectance loss). : permeability coefficient and insersion loss.	Prepare for S-parameter in the file distributed beforehand.	150minutes
9.	Smith Chart. : What is Smith Chart? : What can be done by using Smith Chart. : Impedance matching techniques by using Smith Chart.	Prepare for Smith Chart in the file distributed beforehand.	150minutes
10.	Imitance Chart and impedance matching techniques	Prepare for Smith Chart in the file distributed beforehand.	150minutes
11.	Inter-symbol interference (ISI) and eye-pattern. : Deterioration of a signal waveform due to ISI. : Circuit techniques to prevent the deterioration.	Prepare for ISI and eye-diagram in the file distributed beforehand.	150minutes
12.	Power supply noise reduction techniques. : CMOS circuits acting as noise source. : Simultaneous switching noise. : Power supply and ground bounce. : Decoupling capacitor	Prepare for decoupling capacitor in the file distributed beforehand.	150minutes
13.	Eectromagnetic wave generation and its interference. : EMC (Electro-magnetic compatibility) and EMI Differential signal transmission circuit. : Pros and cons of using differential signaling compared with that of single-ended signaling. : High-speed differential interfaces. : Theory of differential signaling. : Differential signal termination techniques. : Circuit techniques to prevent the deterioration. (Electro-magnetic Interference) : Measurement techniques of Electromagnetic wave : Visualization technique of of near electromagnetic field strength. : Electromagnetic wave generation due to return current.	Prepare for differential signaling theory in the file distributed beforehand.	150minutes
14.	Overall summary and term-report.	Review all items in this course.	430minutes
Total.	-	-	2660minutes

Feedback on exams, assignments, etc.

ways of feedback	specific contents about "Other"
Feedback in the class

Textbooks and reference materials

handouts of presentation slides will be distributed.

Prerequisites

It is desirable that all the courses of "Electric Circuits", "Electronic Circuits", and " Mathematics for Electrical and Electronic Engineering" have been acquired.

Office hours and How to contact professors for questions

12:30PM-13:10PM, Tuesday.
Please visit lecturer room in Toyosu campus.

Regionally-oriented

Non-regionally-oriented course

Development of social and professional independence

Course that cultivates an ability for utilizing knowledge

Active-learning course

More than one class is interactive

Course by professor with work experience

Work experience	Work experience and relevance to the course content if applicable
Applicable	Circuit design experience of High-speed digital circuits and wireless analog circuits.

Education related SDGs:the Sustainable Development Goals

9.INDUSTRY, INNOVATION AND INFRASTRUCTURE

Last modified : Sat Mar 08 04:23:39 JST 2025