Oscillator for high-speed serial device
US12101112B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2022 |
| Grant date | Sep 24, 2024 |
| Priority date | — |
| Expiry date | Dec 10, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2200/0058
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Transceiver circuitry for coupling a functional circuit to a transmission medium includes a transmit path for coupling between the functional circuit and the transmission medium, a receive path for coupling between the transmission medium and the functional circuit, and clock generation circuitry coupled to at least one of the transmit path and the receive path. The clock generation circuitry includes an oscillator having transconductance circuitry, a capacitance element coupled in parallel with the transconductance circuitry, a plurality of inductors coupled in parallel with the transconductance circuitry and the capacitance element, and with each other, and a current source coupled to the plurality of inductors. The capacitance element may be variable. An even number of inductors are arranged so that half of the inductors generate magnetic flux in a first direction, and half of the inductors generate magnetic flux in a second direction opposite to the first direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.