FEATURESAPPLICATIONS
描述
pcm1780,pcm1781,pcm1782
SLES132A–MARCH2005–REVISEDAPRIL2005
24-有点,192-khzsampling,enhancedmultilevel,三角洲-西格玛,
audiodigital-至-analogconverter
•
一个/vreceivers
•
24-bitresolution
•
DVDMoviePlayers
•
analogperformance(v
抄送
=5v):
•
dvdadd-oncardsforhigh-endpcs
–dynamicrange:106db
•
DVDAudioPlayers
–snr:106db,典型
•
HDTVReceivers
–thd+n:0.002%,典型
•
CarAudioSystems
–full-scaleoutput:3.9vp-p,典型
•
otherapplicationsrequiring24-bitaudio
•
4×/8×oversamplingdigitalfilter:
–stop-bandattenuation:–50db
–pass-bandripple:±0.04db
thepcm1780/81/82isacmos,单片,inte-
•
samplingfrequency:5khzto200khz
gratedcircuit,whichincludesstereodigital-至-模拟
convertersandsupportcircuitryinasmall16-铅
•
系统时钟:128f
s
,192f
s
,256f
s
,384f
s
,
ssoppackage.thedataconvertersuseti’森-
512f
s
,768f
s
,1152f
s
WithAutodetect
hancedmultileveldelta-sigmaarchitecturetoachieve
•
softwarecontrol(pcm1780,pcm1782):
excellentdynamicperformanceandimprovedtoler-
–accepts16-,18-,20-,and24-bitaudiodata
ancetoclockjitter.thepcm1780/81/82accepts
industrystandardaudiodataformatswith16-至
–formats:右侧-合理的,我
2
s,和
24-bitdata,providingeasyinterfacingtoaudiodsp
左对齐
anddecoderchips.samplingratesupto200khzare
–digitalattenuation:modeselectable
支持.thepcm1780/82providesafullsetof
•
0dbto–63db,0.5db/步骤
用户-programmablefunctionsthroughathree-电线
serialcontrolport,whichsupportsregisterwrite
•
0dbto–100db,1db/步骤
功能.thepcm1781providesasubsetof
–digitalde-emphasis
用户-programmablefunctionsthroughfourcontrol
–digitalfilterrolloff:sharporslow
针脚.
–SoftMute
thepcm1780ispin-compatiblewiththepcm1680
–ZeroFlagsforEachOutput
(8-channeldac).
–open-drainoutputzeroflag(pcm1782)
•
hardwarecontrol(pcm1781):
–I
2
sand16-bitword,右对齐
–digitalde-emphasis
–SoftMute
–zeroflagforl-,右-channelcommonoutput
•
powersupply:5-vsinglesupply
•
小,16-leadssoppackage(150mil)
•
管脚-compatiblewithpcm1680
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
systemtwo,audioprecisionaretrademarksofaudioprecision,公司
alltrademarksarethepropertyoftheirrespectiveowners.
productiondatainformationiscurrentasofpublicationdate.
copyright©2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
必要包括测试所有参数.
: 点此下载
