GM cell based control loops
US6526113B1 · kind B1 · utility
13Cited by
13References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2000 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Mar 31, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/18
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Various circuit techniques employ a transconductance (gm) cell in control loops to implement circuits such as phase locked loops and delay locked loops that are capable of operating at ultra high frequencies with improved precision and noise performance. The gm cell is designed to operate on an analog input signal with a very small swing and more gradual transition edges. These characteristics allow implementation of high frequency circuits and systems including, for example, transceivers for fiber optic channels, disk driver electronics and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.