于描述一个晶体频率特性的参数主要有频率容限（Frequency Tolerance）、频率温度特性（Frequency Temperature Characteristics）和频率电压特性(Frequency Voltage Characteristics)，它们描述晶体振荡频率随外界因素影响而发生的变化，用ppm和ppm/V表示。
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Studies the resonator frequency temperature characteristic, then designs the middle-frequency tracking band pass filter.
研究了谐振子频率的温度特性并设计了频率跟踪带通滤波器。
The keys of improving the ATCXO temperature frequency characteristic are appropriately choosing compensation network and optimization calculation the network parameter.
补偿网络的合理选取和网络参数的优化计算是提高ATCXO产品的温度频率特性的关键。
It order to improving the temperature characteristic and aging drift characteristic of frequency marker, one intelligent compensating method and device is disclosed.
为了改善频标温度特性和老化漂移特性，提出一种智能补偿方法及其装置。
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