tie深圳市青兴深圳市青兴电子有限公司电子有限公司SHENZHENQINGXINGELECTRONICCO.LCDECMAPPROVALSHEET客户CUSTOMER北京国基科技产品型号SPECIFICATIONSDT-A6050外型尺寸DIMENSIONALØ6.0×5.0灵敏度SENSITIVITY-33±3dB(0dB=1V/Pa,at1KHz)2.0V2.2KΩVENDORCUSTOMERCHECKEDBYISSUEDBYAPPROVEDBY李正朱玲公司地址：深圳宝安西乡九围路209号电话：0755-23283068传真：0755-23283068网址：www.sz-qxdz.com编号:1408026TYPE:DT-A60501.ELECTRICALCHARACTERISTICSTEMP=20±2℃RoomHumidity=65±5%PARAMETERSYMBOLCONDITIONLIMITSUNITMinCenterMaxSensitivitySf=1KHZ,S.P.L=1Pa0dB=1V/Pa-36-33-30dBOutputimpedanceZoutf=1KHZ2.2KΩCurrentConsumptionIDssVS=3.0VRL=2.2KΩ500μADirectivityOmnidirectionalSignaltoNoiseRatioS/NS:(f=1KHz,S.P.L=1Pa)N:(A-Weightedcurve)42dBDecreasingVoltageΔS-VSVs=3.0Vto2.5V-3dBOperatingvoltage1.010VMaximuminputS.P.L110dB1.2TYPICALFREQUENCYRESPONSECURVE2.MEASUREMENTCIRCUIT4.STRUCTUREOFMICROPHONEITEMPARTNAMEMATERIALQTYSUPPLIER1P.C.BBAKELITEEPOXY1LOCAL2CHAMBERPOM1LOCAL3SPACERPOLYESTER1LOCAL4SCREENNON-FIBRECORD1LOCAL5DIAPHRAGMFEPANDBRASS1U.S.A6PLATEBRASS1LOCAL7CASEALUMINUM1LOCAL8FET2SK5961LOCALREMARK：Inordertokeepforerunneroftheproduct,ourcompanycarryoutthelayoutupgradeandthecolorAdjustmentafterthetechniquerenew,nofurthernoticewillbegiven,ifhaveanydoubt,pleasecontactourmarketingdepartmenttoconsult.Thecolordifferenceisbecauseofdifferentpurchasebatchandtheproductfunctionwillnotbeaffected,Soitdoesnotregardsasacceptancestandard.3.APPEARANCE&DIMENSIONSECM;DT-A6050Unit:mm5.MECHANICALCHARACTERISTICSSolderingHeatShockTobenointerferenceinoperationaftersolderingHeatshock,temperature300℃±20℃for2±1secondsTerminalMechanicalStrengthTobenointerferenceinoperationafterpulledtheterminalwith0.5kgstrengthfor3seconds.6.RELIABILITYTESTAlltestsaretobecarriedoutonthesametestbatchintheorderlisted.Thesensitivitytobewithin±3dBofinitialsensitivityafter3hoursofconditioningat20℃.TemperatureTestAfterexposureat60℃for200hours,,thesensitivitytobewithin±3dBfromtheinitialvalue.Afterexposureat–25℃for200hoursthesensitivitytobewithin±3dBfromtheinitialvalue.HumidityTestAfterexposureat40℃and90~95%relativehumidityfor200hours,thesensitivitytobewithin±3dBfromtheinitialsensitivity.TemperatureCycleTestAfterexposureat–25℃for30minutes,at20℃for10minutes,at+60℃for30minutes,at20℃for10minutes,5cycles,thesensitivitytobewithin±3dBfromtheinitialsensitivity.VibrationTestTobenointerferenceinoperationaftervibrations,10Hzto50Hzfor1minutefullamplitude1.52mm,for2hoursat3axises.DropTestTobenointerferenceinoperationafterdroppedtoconcreteflooreachonetimefrom1meterheightatthreedirectionsinstateofpacking.7.CONCEPTOFUNITThedifferencebetweenconceptofunit“Pascal”andtheoneofunit“μbar”canbeexplainedasfollows.IncalibratingthesensitivityofECMs,Thesensitivityismanifesteddifferentlyaccordingastheunitis“Pascal”or“μbar”.Thatis,thesensitivitywillbeincreasedby20dBintheusageofunit“Pascal”.Example:-60dB(0dB=1V/μbar)=-40dB(0dB=1V/Pa)8.SENSITIVITYSTANDARDTESTING8.1SENSITIVITY8.2REQUEST:Thetoleranceofsensitivityisnotover+/-3dBtostandardmicrophone.8.3TESTINGWAY:8.3.1Testingmicrophonewithstandardoperatingcondition.8.3.2Putthemicrophoneandstandardmicrophonetofacethesoundoutputplace(speaker),thedistancefromsoundoutputtomicrophone&standardmicrophoneis50cm.Andkeepthecenterdistance5cmbetweeneachothertoensurethesoundpressurechangeshouldbekeepin+/-1dB.8.3.3Keeptheoutputsoundpressurein+/-1dBfromspeaker.(Testedbystandardmicrophone)8.3.4Thesensitivityofmicrophoneisgettingitsoutputvoltagewhensoundoutputkeepin1000Hz&0.1Pa.9.REGARDINGTHESOLDERINGOPERATIONTHESTORAGE,TRANSPORTATIONANDUSINGGUIDEOFCONDENCERMICROPHONE9.1TestingConditionInNormalWeatherEnvironmentTemperature:5~+35°CRelativeHumidity:45~85%AirPressure:86~106KpaInArbitrateWeatherEnvironmentTemperature:20+/-2°CRelativeHumidity:60~70%AirPressure:86~106Kpa10.EveryMic.hasinstalledFET.,TheFET.iseasybrokenbystrongheatandstaticelectricity,sowhenyouworkingon,plsbeattentionthat:Recommendusingconstantbrandingironin15~30W,andintemperaturerange280~320°C.Solderingtimenotover3seconds.Don’tstayanyholeordustwhensoldering.ToavoidtheMic.bebrokenbystaticelectricity,thepeopleandworkingstationshouldinstallpreventstaticelectricityequipment.Plsusingtheeasydissipateheatmaterial(SuchasAluminum…)tobethesolderingplate.Theappearanceasfollow:AgoodpackagewillhelpMic.onusingnormaltransportation.Plspaymoreattentiontopreventhumid,shake,sunlightandheavypress.11.TEMPERATURECONDITONSThefullpackedMic.shouldbestoreatwarehousein–20~70°C,andtherelativehumiditynotbiggerthan90%.Thewarehousemustkeepconstanttemperature,withoutacidoranyotherpoisonousgas,andnotcausedanyinfluencefromstrongmagneticfield.Operatingtemperature:-20℃~+70℃12.PACKAGINGMODELNO:DT-A6050P5UNIT:mm
