Datasheet

PCM2900B
PCM2902B
www.ti.com ...........................................................................................................................................................................................SLES229–DECEMBER2008
ELECTRICALCHARACTERISTICS(continued)
AllspecificationsatT
A
=+25°C,V
BUS
=5V,f
S
=44.1kHz,f
IN
=1kHz,and16-bitdata,unlessotherwisenoted.
PCM2900B,PCM2902B
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
DACCHARACTERISTICS
Resolution8,16Bits
Audiodatachannel1,2Channel
DACClockFrequency
f
S
Samplingfrequency32,44.1,48kHz
DACDCAccuracy
%of
Gainmismatchchannel-to-channel±1±5
FSR
%of
Gainerror±2±10
FSR
%of
Bipolarzeroerror±2
FSR
DACDynamicPerformance
(4)
V
OUT
=0dB0.0050.016%
THD+NTotalharmonicdistortionplusnoise
V
OUT
=–60dB3%
DynamicrangeEIAJ,A-weighted8793dB
SNRSignal-to-noiseratioEIAJ,A-weighted9096dB
Channelseparation8692dB
AnalogOutput
V
O
Outputvoltage0.6V
CCCI
V
PP
Centervoltage0.5V
CCCI
V
LoadimpedanceACcoupling10kΩ
–3dB250kHz
LPFfrequencyresponse
f=20kHz–0.03dB
DACDigitalFilterPerformance
Passband0.445f
S
Hz
Stopband0.555f
S
Hz
Passbandripple±0.1dB
Stop-bandattenuation–43dB
t
d
Delaytime14.3f
S
s
POWER-SUPPLYREQUIREMENTS
V
BUS
Voltagerange4.3555.25VDC
ADC,DACoperation5667mA
Supplycurrent
Suspendmode
(5)
250µA
ADC,DACoperation280352
P
D
PowerdissipationmW
Suspendmode
(5)
1.25
V
CCCI
,
V
CCP1I
,
V
CCP2I
,Internalpower-supplyvoltage3.13.33.5VDC
V
CCXI
,
V
DDI
TEMPERATURERANGE
Operatingtemperaturerange–25+85°C
θ
JA
Thermalresistance100°C/W
(4)f
OUT
=1kHz,usingaSystemTwoaudiomeasurementsystembyAudioPrecisionintheRMSmodewith20-kHzLPF,400-HzHPF.
(5)UnderUSBsuspendstate.
Copyright©2008,TexasInstrumentsIncorporatedSubmitDocumentationFeedback5
ProductFolderLink(s):PCM2900BPCM2902B
Not Recommended For New Designs