外文资料--DUAL POWER AMPLIFIER.pdf

TDA2822March1995DUALPOWERAMPLIFIER.SUPPLYVOLTAGEDOWNTO3V.LOWCROSSOVERDISTORSION.LOWQUIESCENTCURRENT.BRIDGEORSTEREOCONFIGURATIONDESCRIPTIONTheTDA2822isamonolithicintegratedcircuitin12+2+2powerdip,intendedforuseasdualaudiopoweramplifierinportableradiosandTSsets.POWERDIP(Plastic12+2+2)ORDERINGNUMBER:TDA2822TYPICALAPPLICATIONCIRCUIT(STEREO)1/11SCHEMATICDIAGRAMABSOLUTEMAXIMUMRATINGSSymbolParameterValueUnitVsSupplyVoltage15VIoOutputPeakCurrent1.5APtotTotalPowerDissipationatTamb=50CatTcase=70C1.254WWTstg,TjStorageandJunctionTemperature40to150CPINCONNECTION(topview)TDA28222/11THERMALDATASymbolParameterValueUnitRthj-ambRthj-caseThermalResistanceJunction-ambientThermalResistanceJunction-pinsMaxMax8020C/WC/WELECTRICALCHARACTERISTICS(Vs=6V,Tamb=25C,unlessotherwisespecified)STEREO(testcircuitoffig.1)SymbolParameterTestConditionMin.Typ.Max.UnitVsSupplyVoltage315VVcQuiescentOutputVoltageVs=9VVs=6V42.7VVIdQuiescentDrainCurrent612mAIbInputBiasCurrent100nAPoOutputPower(eachchannel)d=10%f=1kHzVs=9VRL=4Vs=6VRL=4Vs=4.5VRL=41.30.451.70.650.32WWWGvClosedLoopVoltageGainf=1kHz363941dBRiInputResistancef=1kHz100keNTotalInputNoiseRs=10kB=22Hzto22kHzCurveA2.52VVSVRSupplyVoltageRejectionf=100Hz2430dBCSChannelSeparationRg=10kf=1kHz50dBBRIDGE(testcircuitoffig.2)VsSupplyVoltage315VIdQuiescentDrainCurrentRL=612mAVosOutputOffsetVoltageRL=81060mVIbInputBiasCurrent100nAPoOutputPowerd=10%f=1kHzVs=9VRL=8Vs=6VRL=8Vs=4.5VRL=1.351WWWdDistortion(f=1kHz)RL=8Po=0.5W0.2%GvClosedLoopVoltageGainf=1kHz39dBRiInputResistancef=1kHz100keNTotalInputNoiseRs=10kB=22Hzto22kHzCurveA32.5VVSVRSupplyVoltageRejectionf=100Hz40dBTDA28223/11Figure1:TestCircuit(s