一种高精度模拟振荡器
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摘要
介绍一种利用32路开关芯片及电阻分压网络将直流信号直接转换为交流信号的方法,由于开关管的响应时间很短,因此,振荡器的频率能够达到100kHz以上。通过实验表明,该振荡电路正弦信号具有信号周期稳定、重复性高等特点,适合作为地学仪器的振荡源。
This paper introduces a new method with which the DC signal can be directly converted to AC signal by using a 32 pathways switch chip.Because the response time of the switch chip is very short,oscillator frequency can reach more than 100 kHz.The experiment show that the oscillating circuit sine signal has characteristics of the stability of signal cycle,higher repeatability and is suitable for the oscillation source as a geological instrument.
This paper introduces a new method with which the DC signal can be directly converted to AC signal by using a 32 pathways switch chip.Because the response time of the switch chip is very short,oscillator frequency can reach more than 100 kHz.The experiment show that the oscillating circuit sine signal has characteristics of the stability of signal cycle,higher repeatability and is suitable for the oscillation source as a geological instrument.
引文
1邓勇,周铎.数字电路设计完全手册[M].北京:国防工业出版社,2004.
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4李莹.静电反馈技术在倾斜仪中的应用研究[D].中国地震局地震研究所,2009.
5张亚,黄克平.有源模拟带通滤波器的设计[J].电子科技,2009,(1):9-12.
2赵忠和,赵建和.地震观测技术与仪器[M].北京:地震出版社,2007.
3ADG732英文产品数据手册[S].亚德诺半导体公司,2002.
4李莹.静电反馈技术在倾斜仪中的应用研究[D].中国地震局地震研究所,2009.
5张亚,黄克平.有源模拟带通滤波器的设计[J].电子科技,2009,(1):9-12.
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