Digital controller for a phase-locked loop
US9698798B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2016 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Jul 29, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/16
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital control loop circuit is disclosed which is coupleable to an oscillator to form a configurable, digital phase-locked loop to generate an output signal having a configurable or selectable output frequency. A representative embodiment of the digital control loop circuit may include a memory storing a plurality of configuration parameters, at least one configuration parameter specifying the output frequency; and a digital controller coupleable to receive an input signal from a reference frequency generator having a reference frequency, the digital controller adapted to access the memory and retrieve the plurality of configuration parameters, and to generate a plurality of control signals to the oscillator both to generate the output signal having the output frequency in response to the plurality of configuration parameters, and to match a phase of the output signal to an input signal phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.