Invention Grant
- Patent Title: Producing a desired frequency using a controlled oscillator with known temperature sensitivity
- Patent Title (中): 使用已知温度敏感度的受控振荡器产生所需的频率
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Application No.: US12774453Application Date: 2010-05-05
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Publication No.: US08975970B2Publication Date: 2015-03-10
- Inventor: Jeffrey L. Sonntag
- Applicant: Jeffrey L. Sonntag
- Applicant Address: US TX Austin
- Assignee: Silicon Laboratories Inc.
- Current Assignee: Silicon Laboratories Inc.
- Current Assignee Address: US TX Austin
- Agency: Abel Law Group, LLP
- Main IPC: H03L7/00
- IPC: H03L7/00 ; H03L1/02
Abstract:
A controlled oscillator is tuned to produce a desired, temperature independent frequency. A first frequency ratio is determined between a first frequency of the output signal generated by the controlled oscillator and a frequency of an output signal from another oscillator. The first frequency is determined based on a sensed temperature. A desired frequency of the output signal of the controlled oscillator is used to determine a desired frequency ratio between the desired frequency and the frequency of the output signal from the other oscillator. The controlled oscillator is tuned and the frequency ratio measured until the tuning has caused the desired frequency ratio to be achieved, thereby causing the controlled oscillator to provide the desired frequency.
Public/Granted literature
- US20110187462A1 PRODUCING A DESIRED FREQUENCY USING A CONTROLLED OSCILLATOR WITH KNOWN TEMPERATURE SENSITIVITY Public/Granted day:2011-08-04
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