Rapid turn-on, controlled amplitude crystal oscillator
US6091307A · kind A · utility
27Cited by
1References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1998 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | Jul 29, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L5/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A crystal tank circuit is connected between the ac cross-coupled outputs of two transistors that are selectively biased to an appropriate common mode voltage to cause rapid build-up of oscillation when the circuit is turned on and in which oscillation is sustained in the desired mode regardless of battery voltage fluctuation without wasting power. The differentially driven frequency-controlling crystal tank circuit receives balanced driving voltage excursions from the circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.