标签: ds3902

DS3902isaresponsetomarketrequirementsforlowcostsolutionsinOpticalModuleswhichdonothavestringentrequirementsforaccuratetemperaturetrackingofsomelasercharacteristics;suchasmodulationcurrentandextinctionratio.Inaddition,laserdrivershavingtwoclosedloopcontrolneedawayofsettingAPCandmodulationcurrentssetpoints.Conventionallythishasbeendoneusingmechanicalpotentiometersfirst,thenthesemechanicalPotsarereplacedwithfixedresistorsselectedtohaveequalvalues.……

DS3902是双路、非易失、低温度系数、256级用户可选的可变数字电阻器。……