标签: sine-wave

这是篇关于振荡电路设计的文章，很不错，唯一不足的就是全英文的。ApplicationReportSLOA060-March2001Sine-WaveOscillatorRonManciniandRichardPalmerHPL(Dallas)ABSTRACTThisnotedescribestheoperationalamplifier(op-amp)sine-waveoscillator,togetherwiththe……

图1电路的生产使用精确的可变频率正弦波波作为一个通用的参考信号。它包括一个8阶椭圆形，开关电容低通滤波器器（IC3）微处理器IC2产生的100kHz方波时钟。（任何其他方便的方波源也是可以接受的。）微控制器的时钟由10MHz的振荡器模块。一个电压监控器（IC1），确保在电源故障时的正确操作。IC3的设置在1/100的时钟频率，滤波器的截止频率。Maxim>AppNotes>AutomotiveFilterCircuits(Analog)SignalGenerationCircuitsKeywords:digitallycontrolledsine-wavegenerator,sinewave,circuits,IC3Jun27,2003APPLICATIONNOTE2081DigitallyControlledSine-WaveGeneratorAsimilarversionofthisarticleappearedintheMay15,2003issueofEDNmagazine.ThecircuitofFigure1producesanaccuratevariable-frequencysinewaveforuseasageneral-purposereferencesignal.Itincludesan8th-orderelliptic,switched-capacitorlowpassfilter(IC3)thatisclockedwitha100kHzsquarewavegeneratedbymicrocontrollerIC2.(Anyotherconvenientsquarewavesourceisalsoacceptable.)Themicrocontrollerisclockedbya10MHzoscillatormodule.Avo……