多用途过滤网络结合反锯齿和SINC补偿
摘要:在本应用笔记中有两个电路开关电容滤波器,重建一个数字-模拟转换器(DAC)的输出,同时提供抗锯齿和SINC补偿功能。滤波器IC防止别名不包括FS/2以上的光谱能量频率。MAX265滤波器的特点。
Maxim>AppNotes>FilterCircuits(Analog)Keywords:filter,filternetwork,switched-capacitorfilter,anti-aliasing,sinccompensation,spectralenergy,DACquantizationnoiseJul09,1998APPLICATIONNOTE29MultipurposeFilterNetworkCombinesAnti-AliasingandSincCompensationAbstract:Inthisapplicationnoteacircuitwithtwoswitched-capacitorfiltersreconstructstheoutputofadigital-to-analogconverter(DAC)whileprovidinganti-aliasingandsinc-compensationfunctions.FilterICpreventsaliasfrequenciesbyexcludingspectralenergyabovefs/2.TheMAX265filterisfeatured.Thedual-biquadfilterchipsandsomeexternalcomponents(Figure1)formamultipurposefilterforthereconstructionofD/Aconvertersignals.Connectedtoaconverter'soutput(Figure2