PCM1794A 24-Bit, 192-kHz Sampling, Advanced …

1 DSPDataLRCKBCKPCM1794AL Analog OutR Analog OutMCLKI/V StageI/V StageDifferential Output or Differential to SE StageProductFolderSample &BuyTechnicalDocumentsTools &SoftwareSupport &CommunityPCM1794 ASLES117B AUGUST2004 REVISEDDECEMBER2015 PCM1794A24-Bit,192-kHzSampling,AdvancedS egment,AudioStereoDigital-to-AnalogConve rter1 Features2 Applications1 24-BitResolution A/V Receivers AnalogPerformance: DVDP layers MusicalInstruments DynamicRange: Car AudioSystems 132 dB (9 V RMS,Mono) OtherApplicationsRequiring24-BitAudio 129 dB ( V RMS,Stereo) 127 dB (2 V RMS,Stereo)3 Description THD+ a monolithic,CMOS- mA p-pintegratedcircuitthat includesstereodigital-to-analog 8 OversamplingDigitalFilter:converters(DAC s)and supportcircuitryin a small28-pin TI s Stop-BandAttenuation: 130 dBadvancedsegmentDACarchitectureto achieve Pass-BandRipple: SamplingFrequency:10 kHz to 200 kHztoleranceto ,allowingthe user SystemClock:128,192,256,384,512,or 768 fSto to 200 kHz are supported.

2 Accepts16-Bitand 24-BitAudioData PCMDataFormats:Standard,I2S, and Left-DeviceInformation(1)JustifiedPARTNU MBERPACKAGEBODYSIZE(NOM) OptionalInterfaceAvailableto ExternalDigitalPCM1794 ASSOP(28) DSP(1) For all availablepackages,see the orderableaddendumat DigitalDe-Emphasisthe end of the datasheet. DigitalFilterRolloff:Sharpor Slow Soft Mute ZeroFlag Dual-SupplyOperation:5-V Analog, 5-V TolerantDigitalInputs Small28-PinSSOPP ackageSimplifiedApplicationDiagram1An IMPORTANTNOTICEat the end of this datasheetaddressesavailability,warranty, changes,use in safety-criticalapplications,intellectual propertymattersand AUGUST2004 Applicationand Pin Configurationand Deviceand Mechanical,Packaging,and RevisionHistoryNOTE:Pagenumbersfor previousrevisionsmay differfrompagenumbersin the (November2006)to RevisionBPage AddedESDR atingstable,FeatureDescriptionsection,De viceFunctionalModes,Applicationand Implementationsection,PowerSupplyRecomme ndationssection,Layoutsection,Deviceand DocumentationSupportsection,andMechanica l,Packaging,and 2004 2015,TexasInstrumentsIncorporatedProduct FolderLinks.

3 PCM1794A1 MONO28 VCC2L2 CHSL27 AGND3L3 DEM26 IOUTL 4 LRCK25 IOUTL+5 DATA24 AGND26 BCK23 VCC17 SCK22 VCOML8 DGND21 VCOMR9 VDD20 IREF10 MUTE19 AGND111 FMT018 IOUTR 12 FMT117 IOUTR+13 ZERO16 AGND3R14 RST15 AUGUST2004 REVISEDDECEMBER20155 Pin Configurationand FunctionsDB Package28-PinSSOPTop ViewPin (1)2 CHSLIL-channel,R-channelselect(1)3 DEMIDe-emphasisenable(1)4 LRCKILeft and rightclock(fS) input(1)5 DATAIS erialaudiodatainput(1)6 BCKIBit clockinput(1)7 SCKIS ystemclockinput(1)8 DGND Digitalground9 VDD Digitalpowersupply, V10 MUTEIM utecontrol(1)11 FMT0 IAudiodataformatselect(1)12 FMT1 IAudiodataformatselect(1)13 ZEROOZ eroflag14 RSTIR eset(1)15 VCC2R Analogpowersupply(R-channelDAC),5 V16 AGND3R Analogground(R-channelDAC)17 IOUTR+OR-channelanalogcurrentoutput+18 IOUTR OR-channelanalogcurrentoutput 19 AGND1 Analogground(internalbias)20 IREF Outputcurrentreferencebias pin21 VCOMR R-channelinternalbias decouplingpin22 VCOML L-channelinternalbias decouplingpin(1)Schmitt-triggerinput,5-V 2004 2015,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback3 ProductFolderLinks:PCM1794 APCM1794 ASLES117B AUGUST2004 Functions(continued) Analogpowersupply,5 V24 AGND2 Analogground(internalbias)25 IOUTL+OL-channelanalogcurrentoutput+26 IOUTL OL-channelanalogcurrentoutput 27 AGND3L Analogground(L-channelDAC)28 VCC2L Analogpowersupply(L-channelDAC),5 V6 (unlessotherwisenoted)(1)MINMAXUNITVCC1, VCC2L, VCC2R :VCC1, VCC2L, VCC2R.

4 AGND1,AGND2,AGND3L,AGND3R,DGND ,DATA,BCK,SCK,FMT1,FMT0,MONO,CHSL,DEM,MU TE, (VDD+ V) < 4 Analoginputvoltage (VCC+ V) < (anypins exceptsupplies) 10mAAmbienttemperatureunderbias 40125 CJunctiontemperature150 CLeadtemperature(soldering,5 s)260 CPackagetemperature(IR reflow,peak)250 CStoragetemperature,Tstg 55150 C(1)StressesbeyondthoselistedunderAbsolu teMaximumRatingsmay causepermanentdamageto the stressratingsonly,whichdo not implyfunctionaloperationof the deviceat theseor any otherconditionsbeyondthoseindicatedunder RecommendedOperatingConditions. Exposureto absolute-maximum-ratedconditionsfor extendedperiodsmay (HBM),per ANSI/ESDA/JEDECJS-001(1) 2500V(ESD)ElectrostaticdischargeVCharged -devicemodel(CDM),per JEDEC specificationJESD22- 1500C101(2)(1)JEDEC documentJEP155statesthat 500-VHBM allowssafe manufacturingwith a standardESDcontrolprocess.(2)JEDEC documentJEP157statesthat 250-VCDM allowssafe manufacturingwith a 2004 2015, AUGUST2004 (unlessotherwisenoted) 2585 (1)DB (SSOP)UNIT28 PINSR C/WR JC(top)Junction-to-case(top) C/WR C/W C/W C/WR JC(bot)Junction-to-case(bottom)thermalre sistance C/W(1)For moreinformationabouttraditionaland new thermalmetrics,see theSemiconductorand IC PackageThermalMetricsapplicationreport, specificationsat TA= 25 C, VCC1 = VCC2L = VCC2R = 5 V, VDD= V, fS= ,systemclock= 256 fS, and 24-bitdata,unlessotherwisenotedPARAMETER TESTCONDITIONSMINTYPMAXUNITDATAFORMATfSS amplingfrequency10200kHzSystemclockfrequ ency128,192,256,384,512,768fSDIGITALINPU T/OUTPUTL ogicfamilyTTL VDD10 AIILI nputlogiccurrentlowVIN= 0 V 10 AVOHO utputlogiclevelhighIOH= 2 2 (2-V RMSOUTPUT)(1)(2)

5 FS= +Nat VOUT= 0 dBfS= 96 192 ,A-weighted,fS= ,A-weighted,fS= 96 kHz127dBEIAJ,A-weighted,fS= 192 kHz127(1)Filtercondition:(a) THD+N:20-HzHPF,20-kHzapogeeLPF(b) Dynamicrange:20-HzHPF,20-kHzAES17 LPF,A-weighted(c) Signal-to-noiseratio:20-HzHPF,20-kHzAES1 7 LPF,A-weighted(d) Channelseparation:20-HzHPF,20-kHzAES17 LPF(e) Analogperformancespecificationsare measuredusingthe SystemTwo Cascadeaudiomeasurementsystemby AudioPrecision in the averagingmode.(2)Dynamicperformanceand dc accuracyare specifiedat the outputof the postamplifieras shownin 2004 2015,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback5 ProductFolderLinks:PCM1794 APCM1794 ASLES117B AUGUST2004 (continued)all specificationsat TA= 25 C, VCC1 = VCC2L = VCC2R = 5 V, VDD= V, fS= ,systemclock= 256 fS, and 24-bitdata,unlessotherwisenotedPARAMETER TESTCONDITIONSMINTYPMAXUNITEIAJ,A-weight ed,fS= ,A-weighted,fS= 96 kHz127dBEIAJ,A-weighted,fS= 192 kHz127fS= 96 kHz122dBfS= 192 kHz120 LevellinearityerrorVOUT= 120 dB 1dBDYNAMICPERFORMANCE( )(1)(3)fS= +Nat VOUT= 0 dBfS= 96 192 ,A-weighted,fS= ,A-weighted,fS= 96 kHz129dBEIAJ,A-weighted,fS= 192 kHz129 EIAJ,A-weighted,fS= ,A-weighted,fS= 96 kHz129dBEIAJ,A-weighted,fS= 192 kHz129fS= 96 kHz123dBfS= 192 kHz121 DYNAMICPERFORMANCE(MONOMODE)(1)(3)

6 FS= +Nat VOUT= 0 dBfS= 96 192 ,A-weighted,fS= ,A-weighted,fS= 96 kHz132dBEIAJ,A-weighted,fS= 192 kHz132 EIAJ,A-weighted,fS= ,A-weighted,fS= 96 kHz132dBEIAJ,A-weighted,fS= 192 kHz132 ANALOGOUTPUTG ainerror 6 26% of FSRG ainmismatch,channel-to-channel 3 of FSRB ipolarzeroerrorAt BPZ 2 of FSRO utputcurrentFull scale(0 dB) p-pCentercurrentAt BPZ :SHARPROLLOFF 3 130dBDelaytime55/fSsFILTERCHARACTERISTIC S-2:SLOWROLLOFF 3 (3)Dynamicperformanceand dc accuracyare specifiedat the outputof the postamplifieras shownin 2004 2015, AUGUST2004 REVISEDDECEMBER2015 ElectricalCharacteristics(continued)all specificationsat TA= 25 C, VCC1 = VCC2L = VCC2R = 5 V, VDD= V, fS= ,systemclock= 256 fS, and 24-bitdata, 100dBDelaytime18 / fSsPOWERSUPPLYREQUIREMENTSfS= (4)fS= 96 kHz23mAfS= 192 kHz45fS= (4)fS= 96 kHz35mAfS= 192 kHz37fS= (4)fS= 96 kHz250mWfS= 192 kHz335(4)Inputis (seeFigure1)t(SCY)System-clockpulse-cycl etime13nst(SCKH)System-clockpulseduratio n, t(SCY)nst(SCKL)System-clockpulseduration , t(SCY)nsEXTERNALRESETTIMING(seeFigure2)t (RST)Resetpulseduration,LOW20nsAUDIOINTE RFACETIMING(seeFigure3)t(BCY)BCKpulse-cy cletime70nst(BCL)BCKpulseduration,LOW30n st(BCH)BCKpulseduration,HIGH30nst(BL)BCK risingedgeto LRCK edge10nst(LB)

7 LRCK edgeto BCKrisingedge10nst(DS)DATA setuptime10nst(DH)DATA hold time10nsLRCK clockduty50% 2-bitclocksCopyright 2004 2015,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback7 ProductFolderLinks:PCM1794 ADATAt(BCH)50% of VDDBCKLRCKt(BCL)t(LB)t(BCY)t(DS)t(DH)50% of VDD50% of VDDt(BL)ResetReset Removal1024 System ClocksInternal ResetSystem ClockRST(Pin 14)t(RST)50 % of VDDS ystem Clock (SCK)HLt(SCKL)t(SCKH)t(SCY)2 VPCM1794 ASLES117B AUGUST2004 SystemClockInputTimingFigure2. ExternalResetTimingFigure3. Timingof AudioInterface8 SubmitDocumentationFeedbackCopyright 2004 2015,TexasInstrumentsIncorporatedProduct FolderLinks:PCM1794Af Frequency kHz 10 8 6 4 2002468101214161820De-Emphasis Level dBf Frequency kHz 20 15 10 Error dBFrequency[ fS] 200 150 100 50001234 Amplitude dBFrequency[ fS] 20 18 16 14 12 10 8 6 4 dBFrequency[ fS] 2 [ fS] 200 150 100 50001234 Amplitude AUGUST2004 Amplitudevs FrequencyFigure5.

8 Amplitudevs FrequencyFrequencyResponse,SharpRolloffP ass-BandRipple,SharpRolloffFigure6. Amplitudevs FrequencyFigure7. Amplitudevs FrequencyFrequencyResponse,SlowRolloffTr ansitionCharacteristics,SlowRollofffS= De-EmphasisErrorvs FrequencyFigure8. De-EmphasisLevelvs FrequencyCopyright 2004 2015,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback9 ProductFolderLinks: PCM1794A 50 192 kHzfS= 96 kHzTHD+N Total Harmonic Distortion + Noise %fS= 48 kHzTA Free-Air Temperature CTA Free-Air Temperature C122124126128130132 50 250255075100 Dynamic Range dBfS= 192 kHzfS= 96 kHzfS= 48 kHzVCC Supply Voltage Signal-to-Noise Ratio dBfS= 96 kHzfS= 192 kHzfS= 48 kHzVCC Supply Voltage Separation dBfS= 96 kHzfS= 192 kHzfS= 48 Supply Voltage 192 kHzfS= 96 kHzTHD+N Total Harmonic Distortion + Noise %fS= 48 kHzVCC Supply Voltage Range dBfS= 96 kHzfS= 48 kHzfS= 192 kHzPCM1794 ASLES117B AUGUST2004 (continued)Figure11.

9 DynamicRangevs SupplyVoltageFigure10. TotalHarmonicDistortion+ Noisevs SupplyVoltageTA= 25 CVOUT= VRMSVDD= VMeasurementcircuitis Figure26 Figure12. Signal-to-NoiseRatiovs SupplyVoltageFigure13. ChannelSeparationvs SupplyVoltageFigure15. DynamicRangevs Free-AirTemperatureFigure14. TotalHarmonicDistortion+ Noisevs Free-AirTemperature10 SubmitDocumentationFeedbackCopyright 2004 2015,TexasInstrumentsIncorporatedProduct FolderLinks: PCM1794A 100 80 60 40 200 Input Level +N Total Harmonic Distortion + Noise %1f Frequency kHz 180 160 140 120 100 80 60 40 2000 2 4 6 8 10 12 14 16 18 20 Amplitude dBf Frequency kHz 160 140 120 100 80 60 40 2000 10 20 30 40 50 60 70 80 90 100 Amplitude dBTA Free-Air Temperature C122124126128130132 50 250255075100 SNR Signal-to-Noise Ratio dBfS= 96 kHzfS= 192 kHzfS= 48 kHzTA Free-Air Temperature C120122124126128130 50 250255075100 Channel Separation dBfS= 192 kHzfS= 48 kHzfS= 96 AUGUST2004 REVISEDDECEMBER2015 TypicalCharacteristics(continued)VCC= 5 VVOUT= VRMSVDD= VMeasurementcircuitis Signal-to-NoiseRatiovs Free-AirTemperatureFigure17.

10 ChannelSeparationvs Free-AirTemperatureVCC= 5 VMeasurementcircuitis Figure26 VCC= 5 VMeasurementcircuitis Figure26TA= 25 CVDD= VfS= 48 kHz,32768point8TA= 25 CVDD= VfS= 48 kHz,32768point8averageaverageFigure18. Amplitudevs FrequencyFigure19. Amplitudevs Frequency 60-dbOutputSpectrum,BW = 20 kHz 60-dbOutputSpectrum,BW = 100 kHzVCC= 5 VMeasurementcircuitis Figure26 VDD= VfS= 48 kHz,TA= 25 CFigure20. TotalHarmonicDistortion+ Noisevs InputLevelCopyright 2004 2015,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback11 ProductFolderLinks:PCM1794 APower SupplyFMT1 SCKA dvancedSegmentDACM odulatorBiasandVrefAGND2 VDDVCC1 VCC2 LVCC2 RAGND18 OversamplingDigitalFilterandFunctionCont rolAudioData InputI/FLRCKBCKDATADEMRSTAGND3 LAGND3 RDGNDC urrentSegmentDACIREFF unctionControlI/FZeroDetectZEROS ystemClockManagerFMT0 MUTEC urrentSegmentDACMONOCHSLVCOMLVCOMRIOUTL+ IOUTL I/V and FilterVOUTLIOUTR+IOUTR I/V and FilterVOUTRPCM1794 ASLES117B AUGUST2004 PCM1794 Adeviceis a 24-bit, 192-kHz ,differential-current,outp utdigital-to-analogconverter(DAC)thatcom esin a PCM1794 AAdeviceis hardwarecontrolledand usesthe Advanced -segmentDACarchitecturefromTI to performwith a StereoDynamicRangeof 129 dB (132dB Mono)