Crystal oscillator aging compensation method and system, terminal equipment and storage medium
A compensation method and crystal oscillator technology, which is applied in power oscillators, electronic circuit testing, electrical components, etc., can solve the problems of crystal oscillator state deterioration, inaccuracy, and excessive compensation.
Active Publication Date: 2022-08-05
深圳市金科泰通信设备有限公司
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[0005] However, in the actual use process, the aging rate of the crystal oscillator changes nonlinearly. The direct linear derivation through the compensation method in the prior art is not accurate enough, and there may be a problem of excessive compensation, which may even lead to the deterioration of the crystal oscillator state.
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[0059] The present application will be further described in detail below with reference to the accompanying drawings.
[0060] refer to figure 1 , the peripheral devices involved in this application include: single chip or MCU, peripheral frequency test equipment, host computer software and crystal oscillator with voltage-controlled frequency adjustment function, the test frequency data of the crystal oscillator is obtained through the peripheral frequency test equipment, and the host computer The test frequency data is uploaded to the single chip microcomputer, and the daily aging rate value of the crystal oscillator is calculated based on the test frequency data.
[0061] The embodiment of the present application discloses a crystal oscillator aging compensation method, refer to figure 2 , including the following steps:
[0062] S101. Acquire test frequency data of the crystal oscillator based on a preset frequency sampling rule;
[0063] S102. Calculate the test frequen...
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The invention relates to a crystal oscillator aging compensation method and system, terminal equipment and a storage medium. The method comprises the following steps: acquiring test frequency data of a crystal oscillator based on a preset frequency sampling rule; calculating the test frequency data based on a least square method to obtain a daily aging rate value, and obtaining a daily aging compensation amount based on the daily aging rate value; obtaining the number of program operation times, and optimizing the daily aging compensation amount based on the number of program operation times to obtain a minute aging compensation amount; and acquiring a minute compensation voltage based on the minute aging compensation amount, and executing the aging compensation operation of the crystal oscillator based on the minute compensation voltage. According to the invention, the accuracy of aging compensation of the crystal oscillator is improved, so that the crystal oscillator outputs an accurate frequency value.
Description
technical field [0001] The present application relates to the technical field of crystal oscillators, and in particular, to a crystal oscillator aging compensation method, system, terminal device and storage medium. Background technique [0002] Crystal oscillator, the full name of crystal oscillator, crystal oscillator usually has four pins and directions, power, quality and clock output pins, including crystal and oscillator circuit. The crystal oscillator does not need an input signal source and can directly output a frequency signal. [0003] During the continuous use of the crystal oscillator, the resonant frequency is affected by the aging of the components and the surrounding environment and load energy changes. The resonant frequency of the crystal usually increases with the working time, and the frequency will appear monotonous. The increasing or increasing trend, the rate of change of the resonant frequency of the quartz crystal with the running time is called the...
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Login to View More IPC IPC(8): H03B5/04G01R23/02G01R31/28
CPCH03B5/04G01R23/02G01R31/2824
Inventor 陈功刘搏
Owner 深圳市金科泰通信设备有限公司