DS1802双数字音频电位的音频特性报告

摘要：本文件的目的是提供一个考试的DS1802双数字potentiomter的音频特性。测试电路开发与抽头点之间，通道间匹配，或两个电位器雨刷器，总谐波失真（THD），互调失真（IMD）和串扰之间的跟踪测量绝对错误的目标。

ApplicationNote88AudioCharacterizationReportfortheDS1802DualDigitalAudioPotentiometerwww.dalsemi.comPURPOSEThepurposeofthisdocumentistoprovideanexaminationoftheDS1802DualDigitalPotentiometer’saudiocharacteristics.Testcircuitsweredevelopedwiththegoalofmeasuringabsoluteerrorbetweentappoints,inter-channelmatchingortrackingbetweenthetwopotentiometerwipers,totalharmonicdistortion(THD),intermodulationdistortion(IMD),andcross-talk.Additionally,dataisprovidedformutelevelsforeachpotentiometer,aswellasactiveandstandbycurrentasafunctionoftemperaturea