Datasheet

PCM2906B
SLES227–DECEMBER2008........................................................................................................................................................................................... www.ti.com
ELECTRICALCHARACTERISTICS(continued)
AllspecificationsatT
A
=+25°C,V
BUS
,=5V,f
S
=44.1kHz,f
IN
=1kHz,and16-bitdata(unlessotherwisenoted).
PCM2906B
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
ADCCHARACTERISTICS
Resolution8,16Bits
Audiodatachannel1,2Channel
ADCClockFrequency
f
s
Samplingfrequency8,11.025,16,22.05,32,44.1,48kHz
ADCDCAccuracy
Gainmismatch,
±1±5%ofFSR
channel-to-channel
Gainerror±2±10%ofFSR
Bipolarzeroerror±0%ofFSR
ADCDynamicPerformance
(8)
V
IN
=–1dB
(9)
,V
CCCI
=3.67V0.010.02%
Totalharmonicdistortion
THD+NV
IN
=–1dB
(10)
0.1%
plusnoise
V
IN
=–60dB5%
DynamicrangeA-weighted8189dB
SNRSignal-to-noiseratioA-weighted8189dB
Channelseparation8085dB
AnalogInput
Inputvoltage0.6V
CCCI
V
PP
Centervoltage0.5V
CCCI
V
Inputimpedance30kΩ
–3dB150kHz
Antialiasingfilterfrequency
response
f
IN
=20kHz–0.08dB
ADCDigitalFilterPerformance
Passband0.454f
s
Hz
Stopband0.583f
s
Hz
Passbandripple±0.05dB
Stop-bandattenuation–65dB
t
d
Delaytime17.4/f
s
s
HPFfrequencyresponse–3dB0.078f
s
/1000Hz
(8)f
IN
=1kHz,usingtheSystemTwo™audiomeasurementsystembyAudioPrecision™inRMSmodewith20-kHzLPF,400-HzHPFin
calculation.
(9)UsingexternalvoltageregulatorforV
CCCI
(asshowninFigure36).
(10)UsinginternalvoltageregulatorforV
CCCI
(asshowninFigure37).
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ProductFolderLink(s):PCM2906B
Not Recommended for New Designs