## page was renamed from Lecture 09
= Sigma-delta converter fundamentals, loops, stability etc. =

== Lecture material ==

 * [[https://people.ee.ethz.ch/~haschmid/asf/09/lecture_191204_idle_tones.zip|Demonstration of idle tones and pattern noise]]

== Exercise ==

 * [[https://people.ee.ethz.ch/~haschmid/asf/09/asf_ex09_1st_order.pdf|Exercise 09]]
 * [[https://people.ee.ethz.ch/~haschmid/asf/09/asf_09_sd_intro__part.pdf|A couple of slides]]
 * [[https://people.ee.ethz.ch/~haschmid/asf/09/asf_ex09.zip|Matlab files and sound samples]]
 * [[https://people.ee.ethz.ch/~haschmid/asf/09/asf_ex09_idle.zip|idle tone generation]]

The solution to execise 9 is a simple matlab script called "calculation.m".  The question "what is realizable" is quite complex, and I will answer it orally in the lecture.