www.德州仪器.com
TLV320AIC32
SLAS479A–AUGUST2005–REVISEDSEPTEMBER2005
electricalcharacteristics(持续)
At25
°
c,avdd,drvdd,iovdd=3.3v,dvdd=1.8v,fs=48-khz,16-bitaudiodata(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
currentsourcing2.5vsetting4ma
audiodacdifferentiallineoutput,加载=10k
Ω
,50pf
1.414v
RMS
全部-scaledifferentialoutput0-dbgaintolineoutputs.dacoutputcommon-模式
voltagesetting=1.35v,outputlevelcontrolgain=0-db
4.0v
PP
信号-至-noiseratio,fs=48khz,0-dbgaintolineoutputs,zerosignal
90100dB
一个-weighted
(3)
应用,referencedtofull-scaleinputlevel
fs=48khz,0-dbgaintolineoutputs,
dynamicrange,一个-weighted100db
1kHz–60dBsignalapplied
totalharmonicdistortionfs=48khz,1khz0dbinputsignalapplied–93–75db
powersupplyrejectionratio234hz,100mvpponavdd,drvdd1/281db
dacchannelseparation(leftto
1-khz,0-db–100db
正确的)
dacinterchannelgainmismatch1khzinput,0dbgain0.1db
dacgainerror1khzinput,0dbgain–0.4db
DACDIGITALINTERPOLATION
fs=48-khz
过滤
passbandhigh-passfilterdisabled0.45
×
FsHz
passbandripplehigh-passfilterdisabled
±
0.06db
transitionband0.45
×
fs0.55
×
FsHz
stopband0.55
×
fs7.5
×
FsHz
Stopbandattenuation65dB
groupdelay21/fssec
stereoheadphonedriverac-coupledoutputconfiguration
(4)
0-dbgaintohighpoweroutputs.输出
0-dbfull-scaleoutputvoltage0.707v
RMS
一般-modevoltagesetting=1.35v
firstoption1.35
Programmableoutputcommon
secondoption1.50
modevoltage(applicabletolinev
thirdoption1.65
outputsalso)
fourthoption1.8
Maximumprogrammableoutput
9dB
levelcontrolgain
Programmableoutputlevel
1dB
controlgainstepsize
R
L
=32
Ω
15
P
O
MaximumoutputpowermW
R
L
=16
Ω
30
信号-至-noiseratio,
94dB
一个-weighted
(5)
(3)unlessotherwisenoted,allmeasurementsuseoutputcommon-modevoltagesettingof1.35v,0-dboutputlevelcontrolgain,16-
Ω
单独的-endedload.
(4)unlessotherwisenoted,allmeasurementsuseoutputcommon-modevoltagesettingof1.35v,0-dboutputlevelcontrolgain,16-
Ω
单独的-endedload.
(5)ratioofoutputlevelwitha1-khzfull-scaleinput,totheoutputlevelplayinganall-zerosignal,measureda-weightedovera20-hzto
20-khzbandwidth.
6
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