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ABSOLUTEMAXIMUMRATINGS
RECOMMENDEDOPERATINGCONDITIONS
ELECTRICALCHARACTERISTICS
pcm1780,pcm1781,pcm1782
SLES132A–MARCH2005–REVISEDAPRIL2005
thisintegratedcircuitcanbedamagedbyesd.texasinstrumentsrecommendsthatallintegrated
circuitsbehandledwithappropriateprecautions.failuretoobserveproperhandlingandinstallation
procedurescancausedamage.esddamagecanrangefromsubtleperformancedegradationto
completedevicefailure.precisionintegratedcircuitsmaybemoresusceptibletodamagebecausevery
smallparametricchangescouldcausethedevicenottomeetitspublishedspecifications.
overoperatingfree-airtemperaturerange(unlessotherwisenoted)
(1)
pcm1780,pcm1781,pcm1782
SupplyvoltageV
CC
–0.3vto6.5v
inputvoltage–0.3vtov
CC
+0.3v,<6.5v
inputcurrent(anypinsexceptsupplies)±10ma
Ambienttemperatureunderbias–40°Cto125°C
Storagetemperature–55°Cto150°C
Junctiontemperature150°C
leadtemperature(焊接)260°c,5s
packagetemperature(irreflow,顶峰)260°c
(1)stressesbeyondthoselistedunder"absolutemaximumratings"maycausepermanentdamagetothedevice.thesearestressratings
仅有的,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunder"recommendedoperating
情况"isnotimplied.exposuretoabsolute-最大-ratedconditionsforextendedperiodsmayaffectdevicereliability.
overoperatingfree-airtemperaturerange
MINNOMMAXUNIT
digitalandanalogsupplyvoltage,v
CC
4.555.5v
DigitalinputlogicfamilyTTL
systemclock8.19236.864mhz
Digitalinputclockfrequency
Samplingclock32192kHz
Analogoutputloadresistance5k
Ω
Analogoutputloadcapacitance50pF
Digitaloutputloadcapacitance20pF
operatingfree-airtemperature,t
一个
–2585°C
AllspecificationsatT
一个
=25°c,v
CC
=5v,f
S
=48khz,systemclock=512f
S
,and24-bitdata(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
Resolution24Bits
DATAFORMAT
pcm1780,正确的-justified,i
2
s,
pcm1782left-justified
Audiodatainterfaceformat
PCM1781I
2
s,正确的-justified
pcm1780,16-,18-,20-,24-位
PCM1782selectable
Audiodatabitlength
16–24-biti
2
s,16-位
PCM1781
正确的-justified
audiodataformatmsb-第一,2scomplement
f
S
Samplingfrequency5200kHz
128f
S
,192f
S
,256f
S
,384f
S
,
Systemclockfrequency
512f
S
,768f
S
,1152f
S
2
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