System for prolonging highly stable crystal oscillator life and method thereof
A crystal oscillator and lifetime technology, applied in the direction of power oscillators, electrical components, etc., can solve the problems of crystal aging, failure to operate, high cost, etc., and achieve the effect of prolonging the service life and solving failure problems
Inactive Publication Date: 2011-08-10
ZTE CORP
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Problems solved by technology
Due to the characteristics of the crystal, the output frequency of the high-stable crystal oscillator will change as the usage time increases. This phenomenon indicates that the crystal has begun to age, which will have a serious impact on the system.
Once the output frequency of the high-stable crystal oscillator exceeds the range allowed by its use, the system will run abnormally, or even fail to run at all
This characteristic of the crystal seriously affects the service life of the system
In order to avoid this situation, most of the current solutions are high-temperature aging in the early stage to reduce the impact of aging performance on high-stable crystal oscillators. However, this solution will bring new problems, such as production Long cycle, high cost, etc.
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[0026] Various preferred embodiments of the present invention will be described in more detail below in conjunction with the accompanying drawings.
[0027] The system for prolonging the service life of the high stability crystal oscillator of the present invention, such as figure 1 As shown, it includes: a high-stable crystal oscillator, a processor module, and a digital-to-analog converter module, and the high-stable crystal oscillator, the processor module, and the digital-to-analog converter module are communicatively connected to each other ;
[0028] The high-stable crystal oscillator is used to output the reference frequency f 0 , to generate or recover the local clock source;
[0029] The digital-to-analog converter module is used to convert the digital control voltage of the high-stable crystal oscillator into the analog control voltage of the high-stable crystal oscillator, and transmit the analog control voltage of the high-stable crystal oscillator to the high-st...
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The invention discloses a system for prolonging the service life of a high-stability crystal oscillator and a method thereof. The method comprises the following steps: setting warming voltage of a high-stability crystal oscillator, detecting and recording digital control voltage of the high-stability crystal oscillator in real time, controlling internal adjustable parameters of the high-stabilitycrystal oscillator when the digital control voltage of the high-stability crystal oscillator exceeds the range of the warming voltage, and enabling the digital control voltage of the high-stability crystal oscillator to recover into the range of the warming voltage to keep system operations normal. Since the method which is provided by the invention adopts a mode that when the digital control voltage of the high-stability crystal oscillator exceeds the range of the warming voltage, the internal adjustable parameters of the high-stability crystal oscillator are controlled, which enables the digital control voltage of the high-stability crystal oscillator to recover into the range of the warming voltage to keep system operation normal, the problem that the high-stability crystal oscillator fails due to aging is solved, and the service life of the high-stability crystal oscillator is greatly prolonged.
Description
technical field [0001] The invention relates to a system and a method for prolonging the service life of an oscillator, in particular to a system and a method for prolonging the service life of a high-stable crystal oscillator. Background technique [0002] High-stability crystal oscillators are widely used in many fields, including wired communication, wireless communication, radar, and timing systems. It is mainly used to generate or recover the local clock source. Due to the characteristics of the crystal, the output frequency of the high-stable crystal oscillator will change as the usage time increases. This phenomenon indicates that the crystal has begun to age, which will have a serious impact on the system. Once the output frequency of the high-stable crystal oscillator exceeds its allowable range, the system will run abnormally, or even fail to run at all. This characteristic of the crystal seriously affects the service life of the system. In order to avoid this s...
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IPC IPC(8): H03B5/04
Inventor 范振峰尹绍刚
Owner ZTE CORP