FEATURESDESCRIPTION
TLV320AIC31
SLAS497–DECEMBER2005
lowpowerstereoaudiocodecforportableaudio/电话
•
StereoAudioDAC
thetlv320aic31isalow-powerstereo-audiocodec
语音放大器,阿斯维拉斯多
–100dbasignal-至-noiseratio
输入和输出,可编程为单端
–16/20/24/32-bitdata
完全-differentialconfigurations.广泛的
–SupportsRatesFrom8kHzto96kHz
基于寄存器的powercontrolis包括,启用
–3d/低音/高音/eq/de-emphasiseffects
stereo48-khzdacplaybackaslowas14mwfrom
a3.3-vanalogsupply,makingitidealforportable,
•
StereoAudioADC
蓄电池-poweredaudioandtelephonyapplications.
–92dbasignal-至-noiseratio
TherecordpathoftheTLV320AIC31contains
–SupportsRatesFrom8kHzto96kHz
集成的microphonebia,数字控制
•
SixAudioInputPins
立体声-麦克风前置放大器,和自动增益
–twostereodifferential/单独-endedinputs
控制(agc),withmix/muxcapabilityamongthe
multipleanaloginputs.theplaybackpathincludes
•
SixAudioOutputDrivers
混合/muxcapabilityfromthestereodacandselected
–stereo8-
Ω
,500mw/channelspeakerdrive
输入,throughprogrammablevolumecontrols,tothe
能力
各种输出.
–stereofully-differentialorsingle-已结束
thetlv320aic31containsfourhigh-poweroutput
HeadphoneDrivers
driversaswellastwofullydifferentialoutputdrivers.
–FullyDifferentialStereoLineOutputs
thehigh-poweroutputdriversarecapableofdriving
avarietyofloadconfigurations,包括四个
•
低功耗:14-mwstereo,48-khzplayback
channelsofsingle-ended16-
Ω
耳机使用
with3.3-vanalogsupply
交流电-耦合电容器,orstereo16-
Ω
headphonesin
•
programmableinput/outputanaloggains
acap-lessoutputconfiguration.inaddition,成对
•
automaticgaincontrol(agc)forrecord
driverscanbeusedtodrive8-
Ω
speakersinaBTL
configurationat500mwperchannel.
•
ProgrammableMicrophoneBiasLevel
•
ProgrammablePLLforFlexibleClock
ThestereoaudioDACsupportssamplingratesfrom
8kHzto96kHzandincludesprogrammabledigital
世代
filteringinthedacpathfor3d,低音,高音,
•
我
2
CControlBus
midrangeeffects,语音语音化,和
•
AudioSerialDataBusSupportsI
2
s,
de-emphasisfor32khz,44.1khz,and48khzrates.
左/右侧-合理的,dsp,andtdmmodes
thestereo-audioadcsupportssamplingratesfrom
8kHzto96kHzandisprecededbyprogrammable
•
ExtensiveModularPowerControl
gainamplifiersprovidingupto+59.5dbanaloggain
•
电源供应:
forlow-levelmicrophoneinputs.
–analog:2.7v–3.6v
TheserialcontrolbussupportstheI
2
cprotocol,同时
–digitalcore:1.525v–1.95v
theserial-audiodatabusisprogrammablefori
2
s,
–digitali/o:1.1v–3.6v
左/rightjustified,dsp,ortdmmodes.ahighly
programmablePLLisincludedforflexibleclock
•
availablepackages:5
×
5mm,32-pinqfn
生成和支持所有标准audorates
fromawiderangeofavailablemclks,Varying从
512khzto50mhz,具有特殊的注意力
mostpopularcasesof12mhz,13mhz,16mhz,
19.2mhz,and19.68mhzsystemclocks.
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
productiondatainformationiscurrentasofpublicationdate.
copyright©2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
必要包括测试所有参数.
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