DS1847/DS1848查找表的注意事项

摘要：本应用笔记涵盖的查找表中使用控制激光偏置电流和调制。表是基于温度的前馈控制的一部分变化值随着温度的变化控制信号。

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