Phase-locked loop circuit including voltage down converter consisting of passive element
US9467155B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 2, 2015 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Mar 2, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/093
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A phase-locked loop circuit includes a first circuit, a second circuit, and a voltage down converter. The first circuit generates a first signal based on a reference signal and a feedback signal, and operates based on a first supply voltage. The second circuit generates an oscillation signal based on a second signal, generates the feedback signal by dividing the oscillation signal, and operates based on a second supply voltage lower than the first supply voltage. The voltage down converter generates the second signal by decreasing an activation voltage level of the first signal. The voltage down converter includes at least one passive element electrically connected between the first circuit and the second circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.