System and method for calibrating bias current for low power RTC oscillator
US7714674B2 · kind B2 · utility
19Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2007 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Mar 31, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L1/02
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The integrated circuit package includes a processing core for operating on a set of instructions to carry out predefined processes. A real time clock circuit provides a system clock for the processing core. The real time clock further comprises an internal oscillator that generates the system clock for the integrated circuit package. The internal oscillator has a factory calibrated bias current. An internal oscillator control register controls the operation of the internal oscillator responsive to control bits of the programmable load capacitor array controlled by the processing core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.