Invention Grant
- Patent Title: Control of a quartz crystal oscillator frequency tuning array
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Application No.: US16207696Application Date: 2018-12-03
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Publication No.: US10944358B2Publication Date: 2021-03-09
- Inventor: Benoit Marchand , Francois Druilhe
- Applicant: STMicroelectronics (Grenoble 2) SAS , STMicroelectronics (Alps) SAS
- Applicant Address: FR Grenoble; FR Grenoble
- Assignee: STMicroelectronics (Grenoble 2) SAS,STMicroelectronics (Alps) SAS
- Current Assignee: STMicroelectronics (Grenoble 2) SAS,STMicroelectronics (Alps) SAS
- Current Assignee Address: FR Grenoble; FR Grenoble
- Agency: Crowe & Dunlevy
- Priority: FR1761612 20171204
- Main IPC: H03B5/12
- IPC: H03B5/12 ; H03C3/09 ; H03L7/099 ; H03B5/36 ; H03L1/02 ; H03L7/183 ; H03L1/00 ; H03B5/04
Abstract:
A quartz crystal resonator is connected to an array of switchable capacitors or resistors. The switched actuation of elements of the array is controlled by bits of a control word. At least one of the bits of the control word is controlled by pulse width modulation to effectuate a tuning of the oscillation frequency of the quartz crystal resonator.
Public/Granted literature
- US20190173426A1 CONTROL OF A QUARTZ CRYSTAL OSCILLATOR FREQUENCY TUNING ARRAY Public/Granted day:2019-06-06
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