TM
www.德州仪器.com
特性
产品
描述
pvdd − 供应 voltage − v
0
10
20
30
40
50
60
70
80
90
100
110
120
0 4 8 12 16 20 24 28 32
P
O
− 输出 电源 − w
8
Ω
4
Ω
T
C
= 75
°
C
thd+n @ 10%
6
Ω
G002
TAS5142
SLES126B–DECEMBER2004–REVISEDMAY2005
STEREODIGITALAMPLIFIERPOWERSTAGE
deliverhigh-质量,高-efficiencyaudioamplification
withprovenemicompliance.thisdevicerequirestwo
•
2×100wat10%thd+ninto4-
Ω
BTL
(1)
powersupplies,at12vforgvddandvdd,andat
•
2×80wat10%thd+ninto6-
Ω
BTL
32vforpvdd.thetas5142doesnotrequire
电源-upsequencingduetointernalpower-onreset.
•
2×65wat10%thd+ninto8-
Ω
BTL
Theefficiencyofthisdigitalamplifierisgreaterthan
•
4×40wat10%thd+ninto3-
Ω
SE
90%into6
Ω
,whichenablestheuseofsmaller
•
4×30wat10%thd+ninto4-
Ω
SE
powersuppliesandheatsinks.
•
1×160wat10%thd+ninto3-
Ω
PBTL
TheTAS5142hasaninnovativeprotectionsystem
•
1×200wat10%thd+ninto2-
Ω
PBTL
(1)
integratedon-碎片,safeguardingthedeviceagainsta
widerangeoffaultconditionsthatcoulddamagethe
•
>100dbsnr(一个-weighted)
系统.thesesafeguardsareshort-circuitprotection,
•
<0.1%thd+nat1w
overcurrentprotection,undervoltageprotection,和
•
twothermallyenhancedpackageoptions:
overtemperatureprotection.thetas5142hasanew
–dkd(36-pinpsop3)
proprietarycurrent-limitingcircuitthatreducesthe
possibilityofdeviceshutdownduringhigh-levelmusic
–ddv(44-pinhtssop)
过往旅客.anewprogrammableovercurrentdetector
•
高-efficiencypowerstage(>90%)和
allowstheuseoflower-costinductorsinthedemodu-
140-m
Ω
OutputMOSFETs
lationoutputfilter.
•
电源-onresetforprotectiononpowerup
BTLOUTPUTPOWERvsSUPPLYVOLTAGE
withoutanypower-supplysequencing
•
integratedself-protectioncircuitsincluding
欠压,overtemperature,超载,
ShortCircuit
•
ErrorReporting
•
EMICompliantWhenUsedWith
RecommendedSystemDesign
•
IntelligentGateDrive
•
迷你/microaudiosystem
•
DVDReceiver
•
HomeTheater
thetas5142isathird-一代,高-执行-
ance,integratedstereodigitalamplifierpowerstage
withanimprovedprotectionsystem.thetas5142is
(1)itisnotrecommendedtodrive200w(总的
capableofdrivinga4-
Ω
桥-tiedload(btl)atup
电源)intotheddvpackagecontinuously.
to100Wperchannelwithlowintegratednoiseatthe
Formultichannelsystemsthatrequiretwo
输出,lowthd+nperformance,andlowidlepower
channelstobedrivenatfullpowerwiththe
ddvpackageoption,itisrecommendedto
消耗.
designthesystemsothatthetwochannels
alow-费用,高-fidelityaudiosystemcanbebuilt
areintwoseparatedevices.
usingatichipset,comprisingamodulator(e.g.,
PurePathDigital™
tas5508)andthetas5142.thissystemonlyre-
quiresasimplepassiveLCdemodulationfilterto
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
purepathdigital,powerpadaretrademarksoftexasinstruments.
alltrademarksarethepropertyoftheirrespectiveowners.
productiondatainformationiscurrentasofpublicationdate.
copyright©2004–2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
: 点此下载
