Device and method for adjusting an impedance of an output driver of an integrated circuit
US7969181B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2008 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Apr 26, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/0005
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A device and method for adjusting an impedance of an output driver of an integrated circuit; the method includes: (i) receiving, by the output driver, a first square wave signal that should be driven by the output driver to provide a second signal; (ii) monitoring, by a monitoring circuit included in the integrated circuit, the second signal during an output driver transient period resulting from a first square wave signal transient to provide a monitoring result; (iii) determining whether to adjust the impedance of the output driver in response to the monitoring result; and (iv) adjusting the impedance of the output driver in response to the determination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.