What This Document Is
This document is a detailed lecture log from ELENG 247A, an introductory course to Microelectromechanical Systems (MEMS) at the University of California, Berkeley. It specifically focuses on the principles and applications of Switched-Capacitor Filters, a crucial component in many modern electronic systems. This log captures the core concepts discussed during a dedicated lecture session on this topic. It’s designed to complement in-class learning and provide a structured record of the material presented.
Why This Document Matters
This lecture log is an invaluable resource for students enrolled in ELENG 247A, or anyone seeking a deeper understanding of switched-capacitor filter design. It’s particularly helpful for reviewing complex topics, preparing for assessments, and solidifying your grasp of the underlying principles. It’s best utilized *after* attending the corresponding lecture, as it serves as a detailed reinforcement of the material. Engineers and hobbyists interested in analog circuit design and signal processing will also find this a useful reference.
Topics Covered
* Fundamental concepts of switched-capacitor filters and their advantages.
* Emulation of resistors using switched-capacitor networks.
* First-order switched-capacitor filter characteristics and considerations.
* The critical issue of aliasing in sampled-data systems and methods for its avoidance.
* Tradeoffs involved in selecting appropriate sampling rates.
* The impact of sample and hold circuits on filter performance.
* Noise characteristics within switched-capacitor filter architectures.
* Different topologies for switched-capacitor integrator designs.
* The relationship between continuous-time and sampled-data signals.
* The sampling theorem and its implications for signal reconstruction.
What This Document Provides
* A comprehensive overview of the theoretical foundations of switched-capacitor filters.
* Detailed explanations of key concepts, presented in a lecture format.
* Illustrative diagrams and visual aids to enhance understanding.
* A focused exploration of the challenges and solutions related to aliasing.
* A discussion of the benefits of switched-capacitor filters compared to traditional continuous-time filters.
* A foundation for further study in advanced filter design and MEMS applications.
