Measurement in Digital Circuits

Prerequisite:

Physics 1 (X02FY1)
Electronics (X34ELE)

Lecturer:

Jiří Novák (gar.)

Tutor:

Jiří Novák (gar.)

Supervisor:

Department of Measurement

Synopsis:

Methods of measurement of electrical quantities (voltage, current, power, frequency, resistance, capacitance and inductance), measuring transducers, A/D and D/A converters, electrical and electronic measuring instruments are introduced. Test and measurement methods in digital technology using analog and digital oscilloscopes and logic analyzers are presented. Finally the transmission of digital signals over the transmission line is introduced and reflectometry (TDR) principle is presented.

Requirements:

Syllabus of lectures:

The lectures will run first 7 weeks for 2 hours.

1. Accuracy of measurement. Analogue meters (overview).

2. Measuring transducers VRV, IRV, VRI, converters of mean and RMS value, analog multipliers.

3. DACs, successive approximation ADCs and flash ADCs.

4. Dual-slope and S-D ADC, digital multimeters.

5. Current, voltage and power measurements.

6. Measurement of frequency, time interval and phase shift.

7. Measurement of resistance (R), impedance and admittance (L-R, C-G).

8. Analogue scopes, features, parameters, and accessories.

9. Digital scopes, features, parameters, and accessories.

10. Methods of scope measurements in digital circuits.

11. Logic analyzers (LAs), features, parameters, and accessories.

12. Methods of logic analyzer measurements in digital circuits.

13. Scope and LA collaboration, using the LA for analysis of microprocessors and buses.

14. Transmission of digital signals over the transmission line, reflectometry (TDR).

Syllabus of tutorials:

1. Introduction, safety in lab. Measurement with analog oscilloscope.

2. DC power measurement using voltmeter and ammeter. Frequency dependence of AC voltmeters.

3. Measuring rectifier. CMOS driver current consumption measurement.

4. Measurement of low resistances. Principle of signal sampling.

5. Measurement of frequency and period. Test A.

6. Dual slope A/D converter. Measurement of one-phase load power consumption.

7. Successive approximation A/D converter. Test B.

8. Measurement of static and dynamic parameters of digital ICs.

9. Passive voltage probe, delayed time base and hold-off.

10. Advanced synchronization methods, automatic measurement of signal parameters by digital oscilloscope.

11. Logic analyzer in timing and state modes.

12. Analysis of communication on parallel interface using logic analyzer.

13. Time domain reflectometry, measurement on data communication cables.

14. Discussion of results, assessment.

Study Objective:

Study materials:

1. Sedláček, M., Haasz, V.: Electrical Measurements and Instrumentation, ČVUT, Prague 2000 (2nd Ed.)

2. Uncertainties in Electrical Measurements. Publ.House ČVUT, Prague 2004

3. Sedláček, M., Holub, J., Hejtmanová, D.: Laboratory Exercises in Electrical Measurements. Publ.House ČVUT, Prague 2005

4. Johnson, H., Graham, M.: High-Speed Digital Design, Prentice Hall 1993

5. www.tektronix.com

6. www.agilent.com

Note:

Time-table for winter semester 2011/2012:

Time-table is not available yet

Time-table for summer semester 2011/2012:

Time-table is not available yet

The course is a part of the following study plans:

• Computer Technology- structured studies (compulsory course)
• Softwarové inženýrství (elective specialized course)
• Web a multimedia (elective specialized course)
• Manažerská informatika (elective specialized course)
• Inteligentní systémy (elective specialized course)