HFBR-2416中文资料

Fiber-OpticTransmitterandReceiverReliabilityDataIntroductionAgilentTechnologies’qualitysystemincludesanongoingreliabilitymonitorprogramtogenerateadatabasefromwhichthisreliabilitydatasheetispublished.TransmitterReliabilityTheHFBR-0400SeriesfiberoptictransmittersincorporateAlGaAsemittersanddoublelensopticalsystems.ThisdesignallowstheHFBR-14XXtransmitterstobedrivenatarelativelylowcurrentlevelforaspecifiedamountofcoupledpowerintothefiber.Becausetransmitterforwardcurrentsareproportionaltofailurerates,alowcurrenttranslatesintoexcellenttransmitterreliability.Tofurtherimprovereliability,Agilenthasimplementedaproprietarywaferscreeningtechnologythatidentifiesdislocationswhichcanleadtotheformationofdarklinedefects(theprimarymechanismfortransmitterlightoutputfailures).HFBR-0400SeriesTransmitters:HFBR-1402,-1412,-1404,-1414Receivers:HFBR-2402,-2412,-2406,-2416Transmtterreliabilitydatahasbeencalculatedusing100mAforwardcurrentanda100%dutyfactor.Inmanyactualuseconditions,a50%dutyfactorandlowerforwardcurrentsarehighlyprobable.Whenthisistrue,transmitterreliabilitywillbesubstantiallybetter.ThedegreeofimprovementcanbeprojectedbyexaminingthefootnotesbelowtheHFBR-14XXdata.ReliabilityPredictionModelThereliabilitypredictionmodelusedtoprojectfailurerateandmeantimetofailure(MTTF)atvarioustemperaturesshowninthesecondtableassumesanexponentialcumulativefailurefunction(constantfailurerate).TheArrheniustemperaturederatingequationisused.AgilentTechnologiesassumesnofailuremechanismchangebetweenstressanduseconditions.Aconservativeactivationenergyof0.43eVwasusedandisderivedfromMIL-HDBD-217forhybriddevices.Confidenceintervalsarebaseduponthechi-squaredpredictionmethodassociatedwithexponentialdistributions.Fiber-OpticTransmitterReliabilityDataHFBR-1402HFBR-1412HFBR-1404HFBR-1414HighTemperatureOperatingLifeTestA.DemonstratedPerformanceTestEquivalentTestConditionSamplesDeviceHoursFailuresHTOLTA=85°C,IF=100mA880units879,5003B.FailureCriteriaFailurehasoccurredwhentheunitfailscatastrophically,orwhenthelightoutputpowerdecreases3dB.PointTypicalPerformancePerformance[1]inTime[2]inTime(90%Confidence)AmbientJunctionMTTF[1]FITs[3]MTTF[2]FITs[3]Temperature(°C)Temperature(°C)(hours)(/109Hours)(hours)(/109Hours)85100293,0003411131,00075968095352,0002844158,00063347590424,0002360190,00052557085514,0001947231,00043376580626,0001598281,00035606075766,0001305344,00029055570945,0001059424,000235750651,172,000854526,000190145601,462,000684657,000152340551,838,000544825,000121235502,326,0004301,044,00095830452,965,0003371,331,00075125403,810,0002631,711,000585C.FailureRatePredictionforRandomFailures(IF@100mA,100%dutycycle)Notes:1.ThepointMTTF(representinganesti-mateofthemeanpointMTTF)isthetotaldevicehoursdividedbyeitherthenumberoffailuresorunityiftherearenofailures.2.90%confidentMTTFandfailureraterepresenttheminimumlevelofreliabilityperformancethatisexpectedfrom90%ofallsamples.Thisconfidenceintervalisbasedonthestatisticsofthedistributionoffailures.Theassumeddistributionoffailuresisexponential.Thisparticulardistributioniscommonlyusedindescribingfailureratespriortotheonsetofwearout.RefertoMIL-STD-690fordetailsofthismethodology.3.1FIT=1failureper109devicehours.2Fiber-OpticLinkReceiverReliabilityDataHFBR-2402HFBR-2412HighTemperatureOperatingLifeTestA.DemonstratedPerformanceTestEquivalentTestConditionSamplesDeviceHoursFailuresHTOLTA=85°C,VCC=5.25V3,9602,370,0001B.FailureCriteriaFailurehasoccurredwhentheunitfailscatastrophically.Onedevicefailedtoswitchlogicstates.PointTypicalPerformancePerformance[1]inTime[2]inTime(90%Confidence)AmbientJunctionMTTF[1]FITs[3]MTTF[2]FITs[3]Temperature(°C)Temperature(°C)(hours)(/109Hours)(hours)(/109Hours)851002,370,000421609,0001,64080952,880,000346742,0001,34075903,530,000282909,0001,09070854,350,0002291,120,00089265805,400,0001841,390,00071960756,740,0001481,730,00057655708,480,0001172,180,000458506510,700,000932,750,000362456013,600,000733,510,000284405517,500,000564,520,000221355022,700,000435,850,000170304529,700,000337,650,000130254039,200,0002510,000,00099C.FailureRatePrediction,Receiver(VCC=5.25V)Notes:1.ThepointMTTF(representinganesti-mateofthemeanpointMTTF)isthetotaldevicehoursdividedbyeitherthenumberoffailuresorunityiftherearenofailures.2.90%confidentMTTFandfailureraterepresenttheminimumlevelofreliabilityperformancethatisexpectedfrom90%ofallsamples.Thisconfidenceintervalisbasedonthestatisticsofthedistributionoffailures.Theassumeddistributionoffailuresisexponential.Thisparticulardistributioniscommonlyusedindescribingusefullifefailures.RefertoMIL-STD-690fordetailsofthismethodology.3.1FIT=1failureper109devicehours.3Fiber-OpticLinkReceiverReliabilityDataHFBR-2406HFBR-2416HighTemperatureOperatingLifeTestA.DemonstratedPerformanceTestEquivalentTestConditionSamplesDeviceHoursFailuresHTOLTA=85°C,VCC=5.25V2,2502,250,0000B.FailureCriteriaFailurehasoccurredwhentheunitfailscatastrophically.PointTypicalPerformancePerformance[1]inTime[2]inTime(90%Confidence)AmbientJunctionMTTF[1]FITs[3]MTTF[2]FITs[3]Temperature(°C)Temperature(°C)(hours)(/109Ho