Low power crystal oscillator with feedback resistor pair
US6542042B1 · kind B1 · utility
5Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 20, 2001 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Feb 20, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B5/36
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A crystal oscillator circuit is disclosed including a differential amplifier, a positive feedback assembly, and a series resonant crystal assembly. The differential amplifier includes a first transistor and a second transistor. The positive feedback assembly is coupled to each of the first and second transistors, and has a loop gain of greater than unity. The series resonant crystal assembly is coupled to one of the first and second transistors, and includes a crystal and a capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.