Datasheet

PCM2906B
www.ti.com ...........................................................................................................................................................................................SLES227–DECEMBER2008
ELECTRICALCHARACTERISTICS(continued)
AllspecificationsatT
A
=+25°C,V
BUS
,=5V,f
S
=44.1kHz,f
IN
=1kHz,and16-bitdata(unlessotherwisenoted).
PCM2906B
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
DACCHARACTERISTICS
Resolution8,16Bits
Audiodatachannel1,2Channel
DACClockFrequency
f
s
Samplingfrequency32,44.1,48kHz
DACDCAccuracy
Gainmismatch,
±1±5%ofFSR
channel-to-channel
Gainerror±2±10%ofFSR
Bipolarzeroerror±2%ofFSR
DACDynamicPerformance
(11)
V
OUT
=0dB0.0050.016%
Totalharmonicdistortion
THD+N
plusnoise
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
(12)
250µA
ADC,DACoperation280352mW
P
D
Powerdissipation
Suspendmode
(12)
1.25mW
Internalpower-supply
3.13.33.5VDC
voltage
(13)
TEMPERATURERANGE
Operatingtemperaturerange–25+85°C
θ
JA
Thermalresistance28-pinSSOP100°C/W
(11)f
OUT
=1kHz,usingtheSystemTwoaudiomeasurementsystembyAudioPrecisioninRMSmodewith20-kHzLPF,400-HzHPF.
(12)InUSBsuspendstate.
(13)Pins10,17,19,23,27:V
CCCI
,V
CCP1I
,V
CCP2I
,V
CCXI
,V
DDI
.
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ProductFolderLink(s):PCM2906B
Not Recommended for New Designs