Temperature controlled crystal oscillator arrangement
US4560959A · kind A · utility
23Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 1983 |
| Grant date | Dec 24, 1985 |
| Priority date | — |
| Expiry date | May 18, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L1/023
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A temperature compensated crystal oscillator in which the base emitter voltage of transistors in an integrated circuit is used to provide substantially linearly temperature sensitive outputs which are employed to generate a series of polynomial functions of Chebyshev-like form which are summed and used to control a varicap diode in the oscillator feedback path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.