ENEE 798E: Electronic Circuits for Advanced Communication Systems

Course Goals:

This is an advanced electronic circuit course with emphasis on mixed signals for communications using integrated circuits (IC). For an IC, design techniques are different from that for discrete element circuits in that resistance values are not accurate and temperature sensitive, and chip area is a primary consideration. On the other hand, large number of transistors can be incorporated on a single chip, and matching of resistance and capacitance values and transistor characteristics can be well maintained. To take advantage of these capabilities, analog circuits usually use a mixed signal design in which both analog signals and digital signals are processed. In a mixed signal design, analog signals are processed as discrete-time signals instead of continuous-time signals. Switched-capacitors are used instead of resistors, and phase-locked loops are widely used e.g., for frequency synthesizing. Analog-to-digital converters are used to convert analog signals after digital signal processing. Digital signal processing can improve the signal to noise ratio, where the noise may be due to switching or the circuit elements.

Course Prerequisite(s):

ENEE 312 or equivalent, an undergraduate course in basic electronic circuit, in which transistors are used as the active elements.

Topics Prerequisite(s):

Diode and transistor characteristics, amplifiers, operational amplifiers, frequency response, feedback, logic circuits.

Textbook(s)

David A. Johns and Ken Martin, Analog Integrated Circuit Design, Wiley, 1997.

Reference(s):

1. J. Smith, Modern Communication Circuits, 2nd Ed., McGraw Hill.

Core Topics:

• Noise analysis and modeling
• Advanced current mirrors and opamps
• Comparators
• Sample and Hold, Voltage reference, and Translinear circuits
• Discrete-time circuits
• Switched-capacitor circuits
• Data conversion fundamentals
• Nyquist-rate digital-to-analog converters
• Nyquist-rate analog-to-digital converters
• Oversampling converters
• Continuous-time filters
• Phase-locked loops (voltage controlled oscillators)
• Frequency synthesizers

Grading Method:

Homework:	1% per week
2 Midterms:	60%
Final Exam:	40%

Last Updated:

March 16, 1999 by H.C. Lin