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首页 安捷伦光学导航鼠标芯片A2051资料

安捷伦光学导航鼠标芯片A2051资料.pdf

安捷伦光学导航鼠标芯片A2051资料

yao888a
2010-03-26 0人阅读 举报 0 0 0 暂无简介

简介:本文档为《安捷伦光学导航鼠标芯片A2051资料pdf》,可适用于IT/计算机领域

DescriptionTheADNSisalowcostopticalsensorusedtoimplementanonmechanicaltrackingengineforcomputermiceItisbasedonopticalnavigationtechnology,whichmeasureschangesinpositionbyopticallyacquiringsequentialsurfaceimages(frames)andmathematicallydeterminingthedirectionandmagnitudeofmovementThesensorishousedinapinstaggereddualinlinepackage(DIP)thatisdesignedforusewiththeHDNSLensandHDNSClipandHLMPEDXX(nmLEDilluminatorsource)Therearenomovingparts,andprecisionopticalalignmentisnotrequired,facilitatinghighvolumeassemblyTheoutputformatistwochannelquadrature(XandYdirection)whichemulatesencoderphototransistorsThecurrentXandYinformationarealsoavailableinregistersaccessedviaaserialportDefaultresolutionisspecifiedascountsperinch(cpi),withratesofmotionuptoinchespersecond(ips)ResolutioncanalsobeprogrammedtocpiThepartisprogrammedviaatwowireserialport,throughregistersTheoryofOperationTheADNSisbasedonOpticalNavigationTechnologyItcontainsanImageAcquisitionSystem(IAS),aDigitalSignalProcessor(DSP),atwochannelquadratureoutput,andatwowireserialportTheIASacquiresmicroscopicsurfaceimagesviathelensandilluminationsystemprovidedbytheHDNS,,andHLMPEDXXLEDTheseimagesareprocessedbytheDSPtodeterminethedirectionanddistanceofmotionTheDSPgeneratestheΔxandΔyrelativedisplacementvaluesthatareconvertedintotwochannelquadraturesignalsFeatures�Preciseopticalnavigationtechnology�Nomechanicalmovingparts�CompleteDmotionsensor�Serialinterfaceandorquadratureinterface�Smoothsurfacenavigation�Programmableframespeeduptoframespersec(fps)�Accuratemotionuptoips�cpiresolution�Highreliability�Highspeedmotiondetector�Noprecisionopticalalignment�Wavesolderable�Singlevoltpowersupply�ShutdownpinforUSBsuspendmodeoperation�Powerconservationmodeduringtimesofnomovement�OnchipLEDdrivewithregulatedcurrent�Serialportregisters–Programming–Datatransfer�pinstaggereddualinlinepackage(DIP)Applications�MicefordesktopPCs,workstations,andportablePCs�Trackballs�IntegratedinputdevicesADNSOpticalMouseSensorDataSheetPinoutPinPinDescriptionSCLKSerialportclock(input)XAXAquadratureoutputXBXBquadratureoutputYBYBquadratureoutputYAYAquadratureoutputXYLEDLEDcontrolREFAInternalreferenceREFBInternalreferenceOSCINOscillatorinputGNDSystemgroundOSCOUTOscillatoroutputGNDSystemgroundVDDvoltpowersupplyRBINLEDcurrentbinresistorPDPowerdownpin,activehighSDIOSerialdata(inputandoutput)FigureTopviewOutlineDrawingofADNSOpticalMouseSensorAXYYWWZSCLKXAXBYBYAXYLEDREFAREFBSDIOPDRBINVDDGNDOSCOUTGNDOSCINFigurePackageoutlinedrawingAFigureRecommendedPCBmechanicalcutoutsandspacing(topview)FigureDassemblydrawingofADNS(topandsideview)DAssemblyDrawingofADNSFiguresand,shownwithHDNS,HDNS,andHLMPEDXXAvagoTechnologiesprovidesanIGESfiledrawingdescribingthebaseplatemoldingfeaturesforlensandPCBalignmentThecomponentsinterlockastheyaremountedontodefinedfeaturesonthebaseplateTheADNSsensorisdesignedformountingonathroughholePCB,lookingdownThereisanaperturestopandfeaturesonthepackagethataligntothelens(seeFigure)TheHDNSlensprovidesopticsfortheimagingofthesurfaceaswellasilluminationofthesurfaceattheoptimumangleFeaturesonthelensalignittothesensor,baseplate,andclipwiththeLEDThelensalsohasalargeroundflangetoprovidealongcreepagepathforanyESDeventsthatoccurattheopeningofthebaseplate(seeFigure)TheHDNSclipholdstheLEDinrelationtothelensTheLEDmustbeinsertedintotheclipandtheLED’sleadsformedpriortoloadingonthePCBTheclipinterlocksthesensortothelens,andthroughthelenstothealignmentfeaturesonthebaseplateTheHLMPEDXXLEDisrecommendedforilluminationIfusedwiththebintable,sufficientilluminationcanbeguaranteed()()()()()()()()()()()()CLEARZONEREFREF()∅∅()RECOMMENDED(PLACES)DIMENSIONSINMILLIMETERS(INCHES)OverviewofOpticalMouseSensorAssembly()()ESDLENSRINGBASEPLATExy()()()()BASEPLATEALIGNMENTPOSTSENSORPCBCLIPPLASTICSPRINGDIMENSIONSINMILLIMETERS(INCHES)TOPVIEWSIDEVIEWFigureExplodedviewdrawingHDNS(CLIP)HLMPED(LED)ADNS(SENSOR)CUSTOMERSUPPLIEDPCBHDNS(LENS)CUSTOMERSUPPLIEDBASEPLATEWITHRECOMMENDEDALIGNMENTFEATURESPERIGESDRAWINGPCBAssemblyConsiderationsInsertthesensorandallotherelectricalcomponentsintoPCBBendtheLEDleads°andtheninserttheLEDintotheassemblyclipuntilthesnapfeaturelockstheLEDbaseInserttheLEDclipassemblyintoPCBWaveSoldertheentireassemblyinanowashsolderprocessutilizingsolderfixtureThesolderfixtureisneededtoprotectthesensorduringthesolderprocessThefixtureshouldbedesignedtoexposethesensorleadstosolderwhileshieldingtheopticalaperturefromdirectsoldercontactThesolderfixtureisalsousedtosetthereferenceheightofthesensortothePCBtopduringwavesoldering(Note:DONOTremovethekaptontapeduringwavesoldering)PlacethelensontothebaseplateRemovetheprotectivekaptontapefromopticalapertureofthesensorCaremustbetakentokeepcontaminantsfromenteringtheapertureItisrecommendednottoplacethePCBfacingupduringtheentiremouseassemblyprocessThePCBshouldbeheldverticallyduringthekaptonremovalprocessInsertPCBassemblyoverthelensontothebaseplatealigningposttoretainPCBassemblyThesensorapertureringshouldselfaligntothelensTheopticalpositionreferenceforthePCBissetbythebaseplateandlensNotethatthePCBmotionduetobuttonpressesmustbeminimizedtomaintainopticalalignmentInstallmousetopcaseThereMUSTbeafeatureinthetopcasetopressdownontothecliptoensureallcomponentsareinterlockedtothecorrectverticalheightFigureBlockdiagramofADNSopticalmousesensorFigurePCBassemblyTypicalDistanceMillimetersCreepageClearanceOSCILLATORSERIALPORTLEDDRIVEPOWERONRESETQUADRATUREOUTPUTVOLTAGEREGULATORANDPOWERCONTROLIMAGEPROCESSORSCLKSDIOXAXBYAYBRBINXYLEDSERIALPORTQUADRATUREOUTPUTSLEDOSCINOSCOUTREFAREFBPDVDDGNDGNDRESONATORVOLTAGEREFERENCEVOLTPOWERCLIPLEDPCBSENSORLENSLIGHTPIPEBASEPLATESURFACEDesignConsiderationsforImprovingESDPerformanceTheflangeonthelenshasbeendesignedtoincreasethecreepageandclearancedistanceforelectrostaticdischargeThetableontherightshowstypicalvaluesassumingbaseplateconstructionpertheAvagosuppliedIGESfileandHDNSlensflangeForimprovedESDperformance,thelensflangecanbesealed(ieglued)tothebaseplateNotethatthelensmaterialispolycarbonateandtherefore,cyanoacrylatebasedadhesivesorotheradhesivesthatmaydamagethelensshouldNOTbeusedThetrimmedlens,HDNS#,isnotrecommendedforcordedapplicationsduetotheESDspecrequirementFigureApplicationusingSDIOpinsRecommendedTypicalApplicationUsingSDIOPinsGNDGNDDMHzμFREFBXYLEDRSURFACEVDDVDDINTERNALIMAGESENSORADNSOSCINOSCOUTCERAMICRESONATORMURATACSALSMXBTDKFCRMGVREGPPXTALINPPCYPRESSCYCAPCPBUTTONSPPμFVDDVPPGNDSHLDμFREFAHLMPEDPDPSCLKPVSSRBINPLMRXTALOUTμFμFRVALUE(kΩ)~~~~~LEDBINKLMNPQRSTUXAXBYBYASDIODRΩVDDVDDQBGNDQADDZLEDkΩHDNSLENSZWHEELENCODERRegulatoryRequirements�PassesFCCBandworldwideanalogousemissionlimitswhenassembledintoamousewithunshieldedcableandfollowingAvagorecommendations�PassesENIECEFTtestswhenassembledintoamousewithunshieldedcableandfollowingAvagorecommendations�ULflammabilitylevelULV�ProvidessufficientESDcreepageclearancedistancetoavoiddischargeuptokVwhenassembledintoamouseaccordingtousageinstructionsabove�Foreyesafetyconsideration,pleaserefertothetechnicalreportavailableonthewebsite,http:wwwAvagocom�ThekΩresistorisdeterminedbytheabsolutemaximumratingofmAfortheHLMPEDXXTheotherresistorvaluesforbrighterbinswillguaranteegoodsignalswithreducedpowerNotesonBypassCapacitors:�Capsforpins,and,MUSThavetracelengthsLESSthanmm�TheμFcapsmustbeceramic�CapsshouldhavelessthannHofselfinductance�CapsshouldhavelessthanΩESRSurfacemountpartsarerecommendedSDIOandSCLKpinsshouldbegroundedifnotusedFigureApplicationusingquadratureoutputpinsAbsoluteMaximumRatingsParameterSymbolMinMaxUnitsNotesStorageTemperatureTS–˚COperatingTemperatureTA–˚CLeadSolderTemperature˚CForseconds,mmbelowseatingplaneSupplyVoltageVDD–VESDkVAllpins,humanbodymodelMILMethodInputVoltageVIN–VDDVPD,SDIO,SCLK,XA,XB,YA,YB,XYLED,RBINInputVoltageVIN–VOSCIN,OSCOUT,REFAAlternativeApplicationusingQuadratureOutputPinsGNDGNDXAXBYBYADD–MHzμFREFBXYLEDSDIORSURFACEVDDVDDINTERNALIMAGESENSORADNSOSCINOSCOUTCERAMICRESONATORAVXKBRMSAMURATACSALSMXBDD–XTALINVPPPPXTALOUTCYPRESSCYCAPCPBUTTONSPANASONICEVQSERIESENCODERZWHEELPPμFVDDCEXTMΩGNDSHLDMHzμFREFAHLMPEDPDPSCLKPPPRBINPPPMRLVSSμFμFRVALUE(kΩ)~~~~~LEDBINKLMNPQRSTUHDNSLENSkΩkΩDRESISTORCONNECTIONALTERNATIVEDRESISTORCONNECTIONVREGULATORLPACZRecommendedOperatingConditionsParameterSymbolMinTypMaxUnitsNotesOperatingTemperatureTA˚CPowerSupplyVoltageVDDvoltsRegistervaluesretainedforvoltagetransientsbelowVbutgreaterthanVPowerSupplyRiseTimeVRTmsSupplyNoiseVNmVPeaktopeakwithinMHzClockFrequencyfCLKMHzSetbyceramicresonatorSerialPortClockFrequencySCLKfCLKMHzResonatorImpendanceXRES�DistancefromLensReferenceZmmResultsin±mmDOFPlanetoSurface(SeeFigure)SpeedSinsecframerate=secondAccelerationAgframerate=secondLightLevelontoICIRRINC,mWm�=nm,�=nmSDIOReadHoldTimetHOLDμsHoldtimeforvaliddata(RefertoFigure)SDIOSerialWriteWriteTimetSWWμsTimebetweentwowritecommands(RefertoFigure)SDIOSerialWriteReadTimetSWRμsTimebetweenwriteandreadoperation(RefertoFigure)SDIOSerialReadWriteTimetSRWnsTimebetweenreadandwriteoperation(RefertoFigure)SDIOSerialReadReadTimetSRRnsTimebetweentworeadcommands(RefertoFigure)DataDelayafterPDtCOMPUTEmsAftertCOMPUTE,allregisterscontaindatafromfirstimageafterPDNotethatanadditionalframesforAGC(shutter)stabilizationmayberequiredifmousemovementoccurredwhilePDwashigh(RefertoFigure)SDIOWriteSetupTimetSETUPnsDatavalidtimebeforetherisingofSCLK(RefertoFigure)PDPulseWidthtPDWμsPulsewidthtoinitiatethepower(topowerdownthechip)downcyclefps(RefertoFigureandFigure)PDPulseWidthtPDRμsPulsewidthtoresettheserial(toresettheserialport)portfps(butmayalsoinitiateapowerdowncycleNormalPDrecoverysequencetobefollowed(RefertoFigure)FrameRateFRframessSeeFramePeriodregistersectionBinResistorRKKK�RefertoFigure��FigureDistancefromlensreferenceplanetosurfaceZOBJECTSURFACEADNSHDNSACElectricalSpecificationsElectricalCharacteristicsoverrecommendedoperatingconditionsTypicalvaluesat˚C,VDD=V,fps,MHzParameterSymbolMinTypMaxUnitsNotesPowerDowntPDμsFromPDTimeuncertaintyduetofirmwaredelay(RefertoFigure)PowerUpfromPDtPUPDmsFromPDtovalidquadsignalsμsecframes(RefertoFigure)PowerUpfromVDDtPUmsFromVDDtovalidquadsignalsμsecframesRiseandFallTimes:SDIOtrnsCL=pF(therisetimeisbetweenand)tfnsCL=pF(thefalltimeisbetweenand)XA,XB,YA,YBtrnsCL=pF(therisetimeisbetweenand)tfnsCL=pF(thefalltimeisbetweenand)ILEDtrnsWithHLMPEDXXLED(therisetimeisbetweenand)tfnsWithHLMPEDXXLED(thefalltimeisbetweenand)SerialPortTransactionTimertSPTTsSerialportwillresetifcurrenttransactionisnotcompletewithintSPTT(RefertoFigure)TransientSupplyCurrentIDDTmAMaxsupplycurrentduringaVDDrampfromtoVwith>μsrisetimeDoesnotincludechargingcurrentforbypasscapacitors�����DCElectricalSpecificationsElectricalCharacteristicsoverrecommendedoperatingconditionsTypicalvaluesat˚C,VDD=V,MHzParameterSymbolMinTypMaxUnitsNotesDCSupplyCurrentIDDAVGmANoloadonXA,XB,YA,YB,(mousemoving)SCLK,SDIOExcludingLEDcurrentPeakSupplyCurrentIDDPEAKmANoloadonXA,XB,YA,YB,(mousemoving)SCLK,SDIOExcludingLEDcurrentDCSupplyCurrentIDDmANoloadonXA,XB,YA,YB,(mousenotmoving)SCLK,SDIOExcludingLEDcurrentDCSupplyCurrentIDDPDμAPD=highSCLK,SDIO=GND(powerdown)orVDDVDD=VtoVSCLK,SDIO,PDInputLowVoltageVILVInputHighVoltageVIH*VDDVOutputLowVoltageVOLVIOL=mA(SDIOonly)OutputHighVoltageVOH*VDDVIOH=mA(SDIOonly)OutputLowVoltageVOLVIOL=mA(XA,XB,YA,YB)OutputHighVoltageVOH*VDDVIOH=mA(XA,XB,YA,YB)OutputLowVoltageVOLVRefertoFigure(XYLED)XYLEDCurrentILEDTyp–RTypARefertoFigure,seetablebelowXYLEDCurrentILEDμAR<��(faultmode)REFA(normalmode)VREFAVK�toVorGND,PD=lowREFA(powerdownmode)VREFAVK�toVorGND,PD=highFigureTypicalIVcharacteristicofADNSXYLEDpinTypicalLEDCurrentTableRValuek�LEDcurrent(typical)mAVOL(V)NORMALIZEDILED–R=kR=ktCOMPUTENEWACQUISITIONINITIALIZATIONRESETCOUNTOSCILLATORSTARTLEDCURRENTSCLKμsμsμsμsPDOPTIONALSPITRANSACTIONSWITHOLDIMAGEDATASPITRANSACTIONSWITHNEWIMAGEDATAATDEFAULTFRAMERATEPDPinTimingFigurePDtimingnormalmodeFigurePDtimingsleepmodeFigurePDminimumpulsewidthFigureDetailofPDfallingedgetimingQuadratureModeTimingTheoutputwaveformsemulatetheoutputfromencodersWiththeresolutionsettocpi,fromonetofivequadraturestatescanexistwithinoneframetimeTheminimumstatetimeisμsIftheresolutioniscpi,thenuptotenquadraturestatescanexistwithinaframetimeIfthemotionwithinaframeisgreaterthanthesevalues,theextramotionwillbereportedinthenextframeThefollowingdiagrams(seeFigures,,and)showthetimingforpositiveXmotion,totherightorpositiveYmotion,upIfapowerdownviathePDpinoccursduringatransfer,thetransferwillresumeafterPDisdeassertedThetimingforthatquadraturestatewillbeincreasedbythelengthofthePDtimePDILEDtCOMPUTESCLKREGISTERREADOPERATIONPDIDDtpdFRAMESμstpupdtCOMPUTE(SEEFIGURE)μstPDWPD(POWERDOWN)FigureQuadraturestatesperframe(cpimode)~μsFRAMESSECONDμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsONEFRAMEFIVEORMOREFOURTHREETWOONEXAYAXBYBXAYAXBYBXAYAXBYBXAYAXBYBXAYAXBYBXMOTIONTOTHERIGHTYMOTIONUPFigureQuadraturestatesperframe(cpimode)XMOTIONTOTHERIGHTYMOTIONUP~μsFRAMESSECONDμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsμsONEFRAMETENORMORENINEEIGHTSEVENSIXXAYAXBYBXAYAXBYBXAYAXBYBXAYAXBYBXAYAXBYBFigureQuadraturestatesperframe(cpimode)~μsFRAMESSECONDμsμsμsμsμsμsμsμsμsONEFRAMEFIVEFOURTHREETWOONEXAYAXBYBXAYAXBYBXAYAXBYBXAYAXBYBXAYAXBYBXMOTIONTOTHERIGHTYMOTIONUPμsμsμsQuadratureStateMachineThefollowingstatemachineshowsthestatesofthequadraturepinsThetwothingstonotearethatwhilethePDpinisasserted,thestatemachineishaltedOncePDisdeasserted,thestatemachinepicksupfrom

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