DS1847/DS1848 查找表时的注意事项

摘要：本应用程序说明涵盖的激光偏见和调制控制中查找表的使用。表是基于温度的控制信号的价值随温度的变化前馈控制的一部分。

Maxim>AppNotes>DIGITALPOTENTIOMETERSFIBER-OPTICCIRCUITSKeywords:fiberoptics,fibre,look-uptable,lasercontrol,biascalibration,modulationcalibration,feedforwardlasercontrol,lasertemperaturedependenceJan08,2002APPLICATIONNOTE167ConsiderationsfortheDS1847/DS1848Look-UpTablesAbstract:Thisapplicationnotecoverstheuseoflook-uptablesinthecontroloflaserbiasandmodulation.Thetablesareapartofafeedforwardcontrolbasedontemperaturewhichvariesthevalueofthecontrollingsignalastemperaturechanges.IntroductionTheDS1847andDS1848aredigitallycontrolledresistors.Thelook-uptablesinthesepartsareusedtostoreResistorpositionsthatdiscretelycompensatefortheuser’sapplicationtemperaturede