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描述
APPLICAtion 电路
_
+
V
DD
V
O+
V
o-
地
6
5
8
7
至电池
C
s
偏差
电路系统
在-
IN+
4
3
2
+
-
在 从
DAC
关闭
R
I
R
I
1
C
(绕过)
(1)
dgn pACKAGE
(t运算 视图)
1
2
3
4
8
7
6
5
关闭
绕过
IN+
在-
V
o-
地
V
DD
V
O+
100 k
Ω
40 k
Ω
40 k
Ω
8
关闭
绕过
IN+
在-
V
o-
地
V
DD
V
O+
8-管脚 qfn (drb) pACKAGE
(t运算 视图)
7
6
5
1
2
3
4
(1)
C
(绕过)
是 optional.
TPA6211A1
SLOS367B–AUGUST2003–REVISEDAUGUST2004
3.1-wmonofullydifferentialaudiopoweramplifier
•
idealforwirelesshandsets,pdas,和
•
DesignedforWirelessorCellularHandsets
NotebookComputers
andPDAs
•
3.1winto3
Ω
froma5-vsupplyat
thd=10%(典型值)
thetpa6211a1isa3.1-wmonofully-差别的
•
lowsupplycurrent:4matypat5v
amplifierdesignedtodriveaspeakerwithatleast
•
shutdowncurrent:0.01µatyp
3-
Ω
impedancewhileconsumingonly20mm
2
总的
•
FastStartupWithMinimalPop
打印-circuitboard(pcb)areainmostapplications.
thedeviceoperatesfrom2.5vto5.5v,绘画
•
OnlyThreeExternalComponents
only4maofquiescentsupplycurrent.这
–improvedpsrr(-80db)andwidesupply
tpa6211a1isavailableinthespace-节省
电压(2.5vto5.5v)fordirectbattery
3-mm
×
3-mmqfn(drb)andthe8-pinmsop
运作
(dgn)powerpad™packages.
–FullyDifferentialDesignReducesRF
featureslike-80dbsupplyvoltagerejectionfrom
整流
20hzto2khz,improvedrfrectificationimmunity,
–-63dbcmrreliminatestwoinput
smallpcbarea,andafaststartupwithminimalpop
CouplingCapacitors
makesthetpa6211a1idealforpda/smartphone
产品.
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
powerpadisatrademarkoftexasinstruments.
productiondatainformationiscurrentasofpublicationdate.
copyright©2003–2004,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
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