Integrated circuit arrangement comprising an active filter and a method for tuning an active filter
US6838929B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 6, 2003 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Jul 2, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/0433
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention relates to an integrated circuit arrangement with an active filter comprising transconductance stages, each being adjustable by means of a bias current to be supplied, and comprising a tuning device for tuning the filter, which tuning device adjusts the bias currents of the transconductance stages, wherein the tuning device adjusts the bias current of a first transconductance stage, for the purpose of achieving a desired characteristic of this transconductance stage, and adjusts the bias current of at least one further transconductance stage such that the transconductance of this further transconductance stage deviates from the transconductance of the first transconductance stage by a certain value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.