Apparatus and method for automatic search of sub-sampling phase locked loop (SS-PLL) locking acquisition
US11063599B2 · kind B2 · utility
2Cited by
3References
26Claims
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Key dates
| Filing date | Jul 19, 2019 |
| Grant date | Jul 13, 2021 |
| Priority date | — |
| Expiry date | Jul 19, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L2207/06
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus and method are provided. The apparatus includes a phase locked loop (PLL) configured to generate a reference signal; a sub-sampling PLL (SS-PLL) connected to the PLL and configured to sub-sample the reference signal; and a first pre-charge circuit connected to the SS-PLL and configured to allow an output voltage of the SS-PLL to transition to an operating voltage to indicate that a difference between two voltage inputs is zero on average.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.