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Temperature-compensated and frequency-controlled oscillator with a high spectral purity, comprising a piezo-electric resonator
Temperature-compensated and frequency-controlled oscillator with a high spectral purity, comprising a piezo-electric resonator
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机译:具有高频谱纯度的温度补偿和频率控制的振荡器,包括压电谐振器
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摘要
A temperature-compensated piezoelectric oscillator of high-spectral purity, capable of being controlled in frequency, consists of a compensation circuit, a processing circuit, a phase-shifting circuit, containing the piezoelectric resonator, and an oscillating circuit. To obtain high spectral purity, it is proposed to use a low-pass filter, placed between the compensation circuit and one of the inputs of the processing circuits, to process the signal coming from the compensation circuit. This filter eliminates the influence of the temperature noise coming from the compensation circuit. The invention can be applied to controllable frequency, temperature compensated piezoelectric oscillators where high spectral purity is sought.
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