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DUAL LOW-VOLTAGE POWERAMPLIFIER■SUPPLY VOLTAGEDOWN TO
1.8V■LOW CROSSOVERDISTORSION■LOW QUIESCENTCURRENT■BRIDGE ORSTEREO CONFIGURATIONMINIDIPORDERINGNUMBER:TDA2822MDESCRIPTIONThe TDA2822M isa monolithicintegrated circuitin8lead Minidippackage.It isintended foruse asdualaudio poweramplifier inportable cassetteplayers andradios.PIN CONNECTIONlop viewVOUTPUTS1JlNPUT-l18|lNPUT.1SUPPLY VOLTAGE!27OUTPUT.[36|1NPUT«2GROUND||lNPUT-25s-raIMINIDIP PACKAGEMECHANICAL DATAmminchDIM.MIN.TYP.MAX.MIN.TYP.MAX.A
3.
320.131a
10.
510.020B
1.
151.
650.
0450.065b
0.
3560.
550.
0140.022b
10.
2040.
3040.
0080.012D
10.
920.430E
7.
959.
750.
3130.384e
2.
540.100e
37.
620.300e
47.
620.300F
6.
60.260I
5.
080.200L
3.
183.
810.
1250.150Z
1.
520.060e4Information furnishedis believedto beaccurate andreliable.However,SGS-THOMSON Microelectronicsassumes noresponsibility fortheconsequences ofuse ofsuch informationnor forany infringementof patentsor otherrights ofthird partieswhich mayresult fromitsuse.No licenseis grantedby implicationor otherwiseunder anypatent orpatent rightsof SGS-THOMSON Microelectronics.Specifications mentionedin thispublication aresubject tochange withoutnotice.This publicationsupersedes andreplaces allinformationpreviously supplied.SGS-THOMSON Microelectronicsproducts arenotauthorized foruse ascritical componentsin lifesupportdevices orsystems withoutexpress writtenapproval ofSGS-THOMSON Microelectronics.1994SGS-THOMSON Microelectronics-All RightsReservedSGS-THOMSON MicroelectronicsGROUP OFCOMPANIESAustralia-Brazil-France-Germany-Hong Kong-Italy-Japan-Korea-Malaysia-Malta-Morocco-The Netherlands-Singa-pore-Spain-Sweden-Switzerland-Taiwan-Thaliand-United Kingdom-U.S.A.SCHEMATIC DIAGRAMABSOLUTEMAXIMUM RATINGSSymbolParameter ValueUnitVs Supply Voltage15VIo PeakOutput Current1APtot Total Power Dissipationat Tamb=50℃at Tease=1W W50°C
1.4Tstg,Tj Storageand JunctionTemperature-40,+150℃THERMAL DATASymbolParameter ValueUnitRthj-amb ThermalResistance Junction-ambient Max.100℃/WRthj-case ThermalResistance Junction-pin4Max.70℃/WELECTRICAL CHARACTERISTICSV=6V,T b=25℃,unless otherwisespecifieds amSymbolParameter|Test ConditionsMin.Typ.Max.UnitSTEREO testcircuit ofFigure1Vs SupplyVoltage
1.815VVo QuiescentOutput Voltage
2.7V
1.2VV=3VSId QuiescentDrain Current69mAlb InputBias Current100nAOutput Powereach channelf=1kHz,d=Po mW10%RL=32Q VS=9V90V=6VSVs=
4.5V15V=3VsV=2V170SR=16Q Vs=6V300120LRL=8Q V=9V3006020SVs=6V4505220RL=4Q VS=6V1000380Vs=
4.5V650320Vs=3V110d Distortionf=1kHz RL=32Q Po=40mW
0.2%%%RL=16Q Po=75mW
0.2RL=8Q P=150mW
0.2OClosed LoopVoltage Gainf=1kHzGv363941dBAGvChannel Balance±1dBRi InputResistance f=1kHz100kQeNTotal Input Noise Rs=10kQ B=Curve A2MV MVB=22Hz to22kHz
2.5SVR SupplyVoltage Rejectionf=100H乙C1=C2=100pF2430dBCs ChannelSeparation f=1kHz50dBBRIDGE testcircuit ofFigure2Vs SupplyVoltage
1.815VQuiescent DrainCurrent mAIdRL=co69Vos RL=8Q±50mVOutput OffsetVoltage betweenthe outputsInputBias Current100nAlbPo Output Power f=1kHz,d=10%mW3205010004002006590082000RL=32Q VS=9V Vs=6V Vs=
4.5V VS=8001203V V=2V1350700SRL=16Q Vs=9V VS=6V Vs=3V2002201000RL=8Q VS=6V Vs=
4.5V Vs=3V350RL=4Q VS=
4.5V Vs=3V VS=2V80Distortion P=
0.5W,R=8Q,f=1kHz
0.2d oL%Closed LoopVoltage Gainf=1kHz39dBGvRi InputResistance f=1kHz100kQeN TotalInputNoiseRs=10kQ B=Curve A
2.53MV MVB=22Hz to22kHzSVR SupplyVoltage Rejectionf=100Hz40dBB PowerBandwidth-3dB R=8Q,P=1W120kHzoFigure1:Test CircuitStereoFigure2:Test CircuitBridge%Oq~c333Figure3:P.C.Board andComponents Figure4:P.C.Board andComponents工Layout2-10/Layoutof theCircuit ofFigure1of theCircuit ofFigure2GNDO-vIJU——O GWO•―OoX.o—【NL OINRVQ{R0O GNUGNPC....-61isFigure5:Quiescent Currentversus Figure6:SupplyVoltageRejection versusSupplyVoltage FrequencyFigure7:Output Powerversus SupplyVoltage Figure8:Distorsion versusOutput PowerTHD=10%,f=1kHz StereoStereoFigure9:Distorsion versusOutput PowerFigure10:Output Powerversus SupplyVoltageStereo BridgeFigure11:Distorsion versusOutput PowerFigure12:Total PowerDissipation versusBridgeOutput Power BridgeFigure13:Total PowerDissipation versusFigure14:Total PowerDissipation versusOutputPowerBridgeOutputPower BridgeFigure15:TotalPowerDissipation versusOutputPowerBridgeFigure16:Typical Application in Portable PlayersFigure17:Application inPortable RadioReceivers445-euiFigure18:Portable RadioCassette PlayersTypeSupply VoltageTDA
72201.5V to6VTDA7211A
1.2V to6VTEA13303Vto15VTDA
72821.5V to6VTDA2822M
1.8Vto15VFigure19:Portable StereoRadiosType SupplyVoltageTDA
72201.5Vto6VTTDA7211A
1.2Vto6VTEA13303Vto15VTDA2822M
1.8Vto15VFigure20:Low CostApplicationinPortablePlayersusing onlyone IOOJJFoutput capacitor。