Datasheet
ZQV
DRB
DGN
1
FEATURESAPPLICATIONS
DESCRIPTION
APPLICATIONCIRCUIT
Actual SolutionSize
6,9mm
5,25mm
(1)
C
B
R
I
R
I
C
S
R
F
R
F
_
+
V
DD
V
O+
V
O-
GND
ToBattery
C
s
Bias
Circuitry
IN-
IN+
+
-
InFrom
DAC
SHUTDOWN
R
I
R
I
R
F
R
F
AppliestotheZQVPackagesOnly
C
( )
BYPASS
(Optional)
TPA6205A1
www.ti.com
..............................................................................................................................................................SLOS490B–JULY2006–REVISEDJUNE2008
1.25-WMONOFULLYDIFFERENTIALAUDIOPOWERAMPLIFIERWITH1.8-VINPUT
LOGICTHRESHOLDS
•DesignedforWirelessHandsets,PDAs,and
2
•1.25WInto8ΩFroma5-VSupplyat
othermobiledevices
THD=1%(Typical)
•CompatiblewithLowPower(1.8VLogic)I/O
•ShutdownPinhas1.8VCompatible
Thresholdcontrolsignals
Thresholds
•LowSupplyCurrent:1.7mATypical
•ShutdownCurrent<10µA
TheTPA6205A1isa1.25-Wmonofullydifferential
•OnlyFiveExternalComponents
amplifierdesignedtodriveaspeakerwithatleast
–ImprovedPSRR(90dB)andWideSupply
8-Ωimpedancewhileconsuminglessthan37mm
2
Voltage(2.5Vto5.5V)forDirectBattery
(ZQVpackageoption)totalprinted-circuitboard
(PCB)areainmostapplications.Thisdeviceoperates
Operation
from2.5Vto5.5V,drawingonly1.7mAofquiescent
–FullyDifferentialDesignReducesRF
supplycurrent.TheTPA6205A1isavailableinthe
Rectification
space-saving2mmx2mmMicroStarJunior™BGA
–ImprovedCMRREliminatesTwoInput
package,andthespacesaving3mmx3mmQFN
CouplingCapacitors
(DRB)package.
–C
(BYPASS)
IsOptionalDuetoFully
Featureslike85-dBPSRRfrom90Hzto5kHz,
DifferentialDesignandHighPSRR
improvedRF-rectificationimmunity,andsmallPCB
areamakestheTPA6205A1idealforwireless
•Availablein3mmx3mmQFNPackage(DRB)
handsets.Afaststart-uptimeof4µswithminimal
•Availableinan8-PinPowerPAD™MSOP
popmakestheTPA6205A1idealforPDA
(DGN)
applications.
•Avaliableina2mmx2mmMicroStarJunior™
BGAPackage(ZQV)
1
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas
Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2PowerPAD,MicroStarJunioraretrademarksofTexasInstruments.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2006–2008,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.