Using PLL synthesis technology such as frequency multiplication and frequency division, may obtain the multi-frequencies, the high stable oscillator signal output.

利用锁相环的倍频、分频等频率合成技术，可以获得多频率、高稳定的振荡信号输出。

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To use a crystal unit as an oscillator, its oscillated frequency is required to be stable against temperature variations.

石英晶体作为谐振器在使用时，要求其谐振频率在温度发生变化时保持稳定。

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In this case, the crystal oscillator can not provide a stable clock frequency, which results in the abnormality of the device.

在这种情况下，晶体振荡器就不能为设备提供稳定的时钟频率，导致设备工作异常。

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