Phase locked loop (PLL) circuit with voltage controlled oscillator (VCO) having reduced gain
US11095297B2 · kind B2 · utility
1Cited by
7References
19Claims
0Family size
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Key dates
| Filing date | Jun 8, 2020 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Jun 8, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/0992
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A voltage controlled oscillator (VCO) circuit generates an output signal having a frequency which is dependent on a control voltage. A current is generated which is itself dependent on an amplitude of the VCO circuit. The generated current accordingly tracks, to an extent, the temperature behavior of the oscillator within the VCO circuit. The oscillator is driven by the sum of the generated current and a control current dependent on the control voltage. The control voltage may, for example, be generated by a phase lock loop (PLL).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.