Analog Signal Processing and Filtering 2024
Wiki start address: https://people.ee.ethz.ch/~haschmid/asfwiki/
User Name and Password for downloading documents from this web site are available from the maintainer (see signature below). I will require some sort of proof that you are a student associated with a Swiss unversity, for example a Legi-Nummer.
Lectures
The lectures base on handwritten notes and a few research papers as a base.
All files I create during the 2020 lectures. Note that from 2021 onwards, such files are attached with the recorded lectures on Switchtube, https://tube.switch.ch/channels/c6193134.
- Papers: see Lecture pages.
Further reading
The text book "Analog Integrated Circuit Design" by Carusone/Johns/Martin is not essential, but can help for further reading if you are particularly interested in the microelectronics aspects of this lecture. The book is normally VERY expensive, but if you buy it in the right place, you can get it at a reasonable price. At the moment of writing this entry the best place I know is here: Hugendubel.
Required tools
I am moving towards having all scripts in Python (sympy, numpy, scipy). I will also provide you with the application "signalflowgrapher", a Python application that is open source.
Available on https://github.com/hanspi42/signalflowgrapher
Install according to the instructions on https://github.com/hanspi42/signalflowgrapher/blob/master/README.md
Please install Python 3.6 or higher. I recommend using Anaconda.
Live Stream
I will teach in the room CHN E42. I will live-stream everything to my Zoom Room (link: Zoom Room) and record all lectures. I will upload all videos to https://tube.switch.ch/channels/c6193134 for long-term storage; this requires a SwitchAAI login.
Information on Signal-flow Graphs
There is also a page with links to a video channel and papers that is open to the public.
This year's programme
Date |
Lecture |
Comments |
18.09. |
Introduction, Poles and Zeros, Driving-Point Signal-Flow Graphs |
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25.09. |
Gm-C Filters from a signal-flow point of view |
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02.10. |
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09.10. |
Home study |
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16.10. |
Current-Mirror OTA, output with cascodes, Miller effect |
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23.10. |
Inductor simulation, impedance converters, and LC filter simulation |
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30.10. |
Current conveyors, current-feedback opamps and how to build filters with them |
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06.11. |
Specification and quality of signal processing circuits: noise, flicker noise, power, harmonic distortion, PSR, CMR, HD, IMD, SNR, SNDR, SFDR, and figures of Merit |
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13.11. |
SC Filters 1: Introduction and SC amplifiers |
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20.11. |
SC Filters 2: SFG analysis of an SC filter stage |
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27.11. |
SC Filters 3: SAR ADC and noise in SC filters |
new topic |
04.12. |
Sigma-delta converter fundamentals, loops, stability etc. |
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11.12. |
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18.12. |
Sigma-Delta PWM for class-D audio and other Sigma-delta tricks |
with holiday special :) |
Not in this year's programme
In-depth discussion of the paper "A Wide Tuning Range Gm-C Continuous-Time Analog Filter" by Tien-Yu Lo et. al., IEEE Trans. CAS-I, vol 54, no 4, pp 713-722, April 2007.
In-depth discussion of the paper "A CMOS Smart Temperature Sensor ..." by Michiel A. P. Pertijs et. al., J. Solid-State Circuits, vol 40, no 12, pp 2805-2815, December 2005.
Joker Lecture: An introduction to doing statistical evaluations in science
Exam
The oral exam has three phases:
- The student is asked with which topic she or he wants to start, and then gets a simple question to start with. In this phase, the examiner asks questions to test how well the student knows the chosen topic. If this phase is done well, a '4' is guaranteed.
- In this phase, the examiner lets the student make links from the chosen topic to other topics from the course. If this phase is done well, a '5' is given.
- In this last phase, the examiner asks questions to which the student cannot have an answer. If the student makes good solution attempts using the material from the course, a '6' is given.
If possible, the examiner announces the phase changes.
A student asked what would constitute a topic, this is the response: The scope of the chosen topic is up to you (of course it must be a topic from the lecture). Choose it so you can show in sufficient detail your knowledge about it. For example some people chose to talk about sigma-delta converters including noise shaping of different order, which worked out well for them. You could also pick out some detail (e.g. the "gain" in a sigma-delta converter or a particular interesting circuit for the application of Mason's rule) and go more in depth. What you probably shouldn't do is try to argue about why it should be called delta-sigma instead of sigma-delta for ten minutes, and you also shouldn't try to summarize the whole lecture. Brownie points for any topic we don't hear more than once. One approach is to take something that sparked your interest during the lecture and prepare it in detail. If you are interested in what you are talking about, it's likely that we will be, too. Misjudging the scope has not been a problem in the past. Use common sense. And use signal flow. It is not an option to not learn to use signal-flow graphs.
Questions
All questions about this page should be directed by E-Mail toHanspeter Schmid.
For everything administrative, copies of exercises, and lecture notes, you can reach the assistant Hampus Malmberg through E-mail, malmberg@isi.ee.ethz.ch, or in the room ETF D109.3.
Contact
--------------------------------------------------------------------- University of Applied Sciences and Arts Northwestern Switzerland School of Engineering Institute of Microelectronics Prof. Dr. Hanspeter Schmid Professor for Analog Microelectronics Klosterzelgstrasse 2 (1.225) CH-5210 Windisch hanspeter.schmid@fhnw.ch --------------------------------------------------------------------- T +41 56 202 75 34 http://www.fhnw.ch/people/hanspeter-schmid/ ---------------------------------------------------------------------