Voltage-controlled oscillator circuit and PLL circuit
US7394325B2 · kind B2 · utility
5Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 7, 2006 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | Aug 6, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/193
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A differential type voltage-controlled oscillator circuit including: a plurality of VCO cells each having one pair of switching elements, the switching elements having one terminal side connected to a voltage source via a load and another terminal side connected to a common current source via a common node, the switching elements being supplied with differential signals, the plurality of VCO cells outputting differential signals different in phase from the differential signals; and a vibration canceling section connecting the plurality of VCO cells such that vibration at each node is cancelled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.