Apparatus for reducing periodic jitter in a ring oscillator
US9300277B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2013 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Feb 20, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/013
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for reducing jitter in a ring oscillator are described. In one embodiment, the apparatus comprises a first power supply node to provide power supply current; a ring oscillator, coupled to the first power supply node, to generate an oscillating output according to change in the power supply current provided to the ring oscillator; and a second power supply node; a circuit, coupled to the second power supply node, to replicate time-average (e.g., DC) behavior of the ring oscillator; and a feedback mechanism having inputs coupled to the first and second power supply nodes, and an output to control current in the circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.