Datasheet

PCM2900B
PCM2902B
SLES229–DECEMBER2008........................................................................................................................................................................................... www.ti.com
ELECTRICALCHARACTERISTICS(continued)
AllspecificationsatT
A
=+25°C,V
BUS
=5V,f
S
=44.1kHz,f
IN
=1kHz,and16-bitdata,unlessotherwisenoted.
PCM2900B,PCM2902B
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
ADCCHARACTERISTICS
Resolution8,16Bits
Audiodatachannel1,2Channel
ADCClockFrequency
f
S
Samplingfrequency8,11.025,16,22.05,32,44.1,48kHz
ADCDCAccuracy
%of
Gainmismatch,channel-to-channel±1±5
FSR
%of
Gainerror±2±10
FSR
%of
Bipolarzeroerror±0
FSR
ADCDynamicPerformance
(1)
V
IN
=–1dB
(2)
,V
CCCI
=3.67V0.010.02%
THD+NTotalharmonicdistortionplusnoiseV
IN
=–1dB
(3)
0.1%
V
IN
=–60dB5%
DynamicrangeA-weighted8189dB
SNRSignal-to-noiseratioA-weighted8189dB
Channelseparation8085dB
AnalogInput
Inputvoltage0.6V
CCCI
V
PP
Centervoltage0.5V
CCCI
V
Inputimpedance30kΩ
–3dB150kHz
Antialiasingfilterfrequencyresponse
f
IN
=20kHz–0.08dB
ADCDigitalFilterPerformance
Passband0.454f
S
Hz
Stopband0.583f
S
Hz
Passbandripple±0.05dB
Stop-bandattenuation65dB
t
d
Delaytime17.4/f
S
s
HPFfrequencyresponse–3dB0.078f
S
/1000Hz
(1)f
IN
=1kHz,usingaSystemTwo™audiomeasurementsystembyAudioPrecision™intheRMSmodewith20-kHzLPF,400-HzHPFin
calculation.
(2)UsingexternalvoltageregulatorforV
CCCI
(asshowninFigure36andFigure37,usingwithREG103xA-A).
(3)UsinginternalvoltageregulatorforV
CCCI
(asshowninFigure38andFigure39).
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ProductFolderLink(s):PCM2900BPCM2902B
Not Recommended For New Designs