week1 - Chapter 1. Introduction Read Section 1.1(Historic)...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 1. Introduction Read Section 1.1(Historic) + 1.2(Cost) +1.3 (Quality Metrics) So far you have been introduced to logic design(concept of 0s and 1s). Some of you know about electronic devices ( transistors - - - - ). This course is all about how to use transistors to make logic circuits and logic functions. 0 0.2 V 1 1.8 V How to make sure we don’t interpret the data wrong. Logic 0 reads logic 0 0.7 V logic 0 ? logic 1 ? What causes the transistor to have 0.7 V ? Noise in Digital Integrated Circuits noise = unwanted coupling (In digital they call it noise because they don’t know how to account for it !) Inductive Coupling Can be reduced by distancing interconnects Add Ground Plane Gnd Shortening interconnects 0 V 1.8 V 1.8 V 0 V 1.8 V Transformers
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Capacitance Coupling can be reduced by same. Cpar1 Cpar2 Power and Gnd noise can be reduced by - DD interconnect - Add capacitors if necessary / available *How much noise is tolerated? Voltage transfer characteristics of an Inverter V DD regenerative Gain >l -1 l Slope = -1 Slope = -1 f Transfer function Vout Vin V OH
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 8

week1 - Chapter 1. Introduction Read Section 1.1(Historic)...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online