RTJ
YZH
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FEATURESAPPLICATIONS
描述
关闭
控制
TPA4411
SDR SDL G0 G1
AV
DD
TPA2012D2
TLV320AIC26
或者
TLV320AIC28
INR+
INR−
HPL
或者
SPK1
HPR
或者
SPK2
C
S
To 电池
PV
DD
INL+
INL−
PGND
AGND
OUTR+
OUTR−
OUTL+
OUTL−
增益
控制
APPLICAtion 电路
TPA2012D2
SLOS438–DECEMBER2004
2.1w/chstereofilter-freeclass-daudiopoweramplifier
•
WirelessorCellularHandsetsandPDAs
•
2.1w/chinto4
Ω
at5V
•
PortableDVDPlayer
•
1.4w/chinto8
Ω
at5V
•
NotebookPC
•
720mw/chinto8
Ω
at3.6v
•
PortableRadio
•
OnlyTwoExternalComponentsRequired
•
PortableGaming
•
powersupplyrange:2.5vto5.5v
•
EducationalToys
•
IndependentShutdownControlforEach
频道
•
USBSpeakers
•
selectablegainof6,12,18,and24db
•
InternalPulldownResistorOnShutdownPins
•
highpsrr:77dbat217hz
thetpa2012d2isastereo,过滤-freeclass-daudio
amplifieravailableinawcsporqfnpackage.这
•
faststartuptime(3.5ms)
TPA2012D2onlyrequirestwoexternalcomponents
•
LowSupplyCurrent
foroperation.
•
LowShutdownCurrent
TheTPA2012D2featuresindependentshutdown
•
短的-circuitandthermalprotection
controlsforeachchannel.thegaincanbeselected
•
SpaceSavingPackages
to6,12,18,or24dbutilizingtheg0andg1gain
•
2mmx2mmnanofree™wcsp(yzh)
selectpins.highpsrranddifferentialarchitecture
(futureproduct)
provideincreasedimmunitytonoiseandrfrectifi-
•
4mmx4mmpb-freethinqfn(rtj)
cation.inadditiontothesefeatures,afaststartup
withPowerPAD™
timeandsmallpackagesizemaketheTPA2012D2
anidealchoiceforbothcellularhandsetsandpdas.
thetpa2012d2iscapableofdriving1.4w/chat
5vor720mw/chat3.6vinto8
Ω
.thetpa2012d2
isalsocapableofdriving4
Ω
.thetpa2012d2
providesthermalandshortcircuitprotection.
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
nanofree,powerpadaretrademarksoftexasinstruments.
unlessotherwisenotedthisdocumentcontainspro-
copyright©2004,texasinstrumentsincorporated
ductiondatainformationcurrentasofpublicationdate.prod-
uctsconformtospecificationsperthetermsofTexasInstruments
standardwarranty.productionprocessingdoesnotnecessarily
includetestingofallparameters.
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