Node method can be used in all cases.
Analog systems lack noise immunity.
So values need to be discretized - high and low ( 1 and 0)
If we take 2.5V to be the midpoint for 0 and 1 and if the voltage sent is 2.5V , it won't work so a forbidden region is needed.
If we set a forbidden region between 2V and 3V, there will still be problems because of a lack of noise margin. So the solution is to set tougher standards for the sender. For example, between 4V and 5V for a 1 (V_oh) and between 0V and 1V for a 0 (V_ol).
The rest of the lecture is on digital circuits which I am not going to cover much about as I am quite familiar enough about that topic.
Video:- http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-002-circuits-and-electronics-spring-2007/video-lectures/lecture-4
Lecture notes : - http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-002-circuits-and-electronics-spring-2007/lecture-notes/
No comments:
Post a Comment