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Study-Unit Description
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TITLE Oscillators and Filters

LEVEL 03 - Years 2, 3, 4 in Modular Undergraduate Course


DEPARTMENT Microelectronics and Nanoelectronics

DESCRIPTION The study-unit covers the concepts of Resonance and Sinusoidal oscillation - Review of Resonance and resonant tanks using RLC passive components, Q-Factor, Bandwidth, Piezoelectric crystals and Sinusoidal oscillators, Feedback and stability using control theory, The Barkhaussen criterion, Phase/Gain Margin for sustained Oscillation, Achieving exact marginal stability, Use of negative resistance. Different topologies of Oscillators: Colpitts, Hartley, Phase-Shift, Bubba, Wien-Bridge, Quadrature, Crystal. Oscillator design and performance comparison.

The study-unit also covers Active filters including Advantages/disadvantages over passive filters, Filter Specifications, Linear v.s. Nonlinear filters, Group Delay, Phase Delay, Types, Sallen-Key Circuit. High Pass, Low Pass, Band Pass, Band Reject, Active Twin, Active Wien-Robinson, Chebychev, Butterworth, Bessel Filters.

Study-unit Aims

This unit introduces the concept of oscillators in microelectronic circuits and the design of filter circuits which are used in telecommunications and signal conditioning.

Learning Outcomes

1. Knowledge & Understanding: By the end of the study-unit the student will be able to:

- Describe and mathematically model the principle of resonance
- Explain the operation of various oscillator and filter circuits.
- Design oscillator and filter circuits.

2. Skills: By the end of the study-unit the student will be able to:

By the end of the study-unit the student will be able to:
- Build and test sinusoidal oscillator circuits.
- Build and test a basic active filter circuit.

Main Text/s and any supplementary readings

1) Franco, Sergio, Design with Operational Amplifiers and Analog Integrated Circuits. McGraw-Hill.
2) Mancini, Ron, Op-Amps for Everyone, Second Edition, Newnes Publishers, ISBN-13: 978-0750677011

ADDITIONAL NOTES Pre-Requisite Study-units : MNE2701

STUDY-UNIT TYPE Lecture, Tutorial and Practical

Assessment Component/s Resit Availability Weighting
Examination (3 Hours) Yes 90%
Practical No 10%


The University makes every effort to ensure that the published Courses Plans, Programmes of Study and Study-Unit information are complete and up-to-date at the time of publication. The University reserves the right to make changes in case errors are detected after publication.
The availability of optional units may be subject to timetabling constraints.
Units not attracting a sufficient number of registrations may be withdrawn without notice.
It should be noted that all the information in the study-unit description above applies to the academic year 2017/8, if study-unit is available during this academic year, and may be subject to change in subsequent years.
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