Stereo Audio DAC With USB Interface Single-Ended …

1 Burr-Brown Audio1 FEATURESAPPLICATIONSDESCRIPTIONPCM2704,, PCM2705 PCM2706, JUNE2003 REVISEDJANUARY2009 STEREOAUDIODACWITHUSBINTERFACE, single -EN DEDHEADPHONEOUTPUTANDS/PDIFOUTPUT ExternalROMI nterface(PCM2704/6)2345 On-ChipUSBI nterface: SerialProgrammingInterface(PCM2705/7) NoNeedofDedicatedDeviceDriver I2 SInterface(SelectableonPCM2706/7) WithFull-SpeedTransceivers Package: 28-PinSSOP(PCM2704/5) CertifiedbyUSB-IF 32-PinTQFP(PCM2706/7) PartiallyProgrammableDescriptors AdaptiveIsochronousTransferfor USBH eadphonesPlayback USBA udioSpeaker Bus-PoweredorSelf-PoweredOperation USBCRT/LCDM onitor SamplingRate:32, ,48kHz USBA udioInterfaceBox On-ChipClockGeneratorWithSingle12-MHz USB-FeaturedConsumerAudioProductClockSou rce SinglePowerSupply: Bus-Powered:5V,Typical(VBUS)ThePCM2704/5 /6/7isTI'ssingle-chipUSBstereo Self- ,TypicalaudioDACwithUSB-compliantfull-sp eedprotocol 16-BitDelta- ,butUSBdescriptors AnalogPerformanceat5V(Bus-Powered),canbe modifiedinsomeparts(forexample, (Self-Powered):ID/productID)throughtheus eofanexternalROM THD+ >10k ,(PCM2704/6),SPI(PCM2705/7),oronrequest.

2 (1)Self-PoweredThePCM2704/5/6/7employsSp Act architecture,TI'suniquesystemthatrecover stheaudioclockfrom THD+ SNR=98dBenableplaybackwithlowclockjitter . DynamicRange:98dB PO=12mW,RL=32 OversamplingDigitalFilter Pass-BandRipple= Stop-BandAttenuation= 50dB single -EndedVoltageOutput AnalogLPFI ncluded MultipleFunctions: UptoEightHumanInterfaceDevice(HID)Interf aces(DependingonModeland(1)Themodificati onoftheUSBdescriptorthroughexternalROMS ettings)orSPImustcomplywithUSB-IFguideli nes, SuspendFlagdescriptoralsocanbemodifiedby changingamask;contact ,standardwarranty, ,AudioPrecisionaretrademarksofAudioPreci sion, 2003 2009, PCM2704 and PCM2705 Not Recommended For New DesignsABSOLUTEMAXIMUMRATINGSRECOMMENDED OPERATINGCONDITIONSPCM2704,,PCM2705 PCM2706,PCM2707 SLES081F JUNE2003 (1)VBUS ,VCCL,VCCR,VDD ,VCCL,VCCR,VDD ,AGNDL,AGNDR,DGND,ZGND +,D ,HID0/MS,HID1/MC,HID2/MD,XTI,XTO,DOUT,SS PND,CK,DT, (VDD+ )V<4 VPSEL,FSEL,TEST,TEST0,TEST1,FUNC0,FUNC1, FUNC2,FUNC3 VCOM (VCCP+ )V<4 VAnaloginputvoltageVOUTR (VCCR+ )V<4 VVOUTL (VCCL+ )V<4 VInputcurrent(anypinsexceptsupplies) 10mAAmbienttemperatureunderbias 40 Cto125 CStoragetemperature 55 Cto150 CJunctiontemperature150 CLeadtemperature(soldering)260 C,5sPackagetemperature(IRreflow,peak)260 C(1)

3 , ,VCCL,VCCR, Analogoutputloadcapacitance100pFDigitalo utputloadcapacitance20pFOperatingfree-ai rtemperature,TA 2585C2 SubmitDocumentationFeedbackCopyright 2003 2009,TexasInstrumentsIncorporatedProduct FolderLink(s):PCM2704 PCM2705 PCM2706 PCM2707 PCM2704 and PCM2705 Not Recommended For New DesignsELECTRICALCHARACTERISTICSPCM2704, ,PCM2705 PCM2706, JUNE2003 REVISEDJANUARY2009allspecificationsatTA= 25 C,VBUS=5V,fS= ,fIN=1kHz,16-bitdata(unlessotherwisenote d)PCM2704DB,PCM2705DB,PCM2706 PJT,PCM2707 , (1) (1) (2)VIN= 10 IIL(2)VIN=0V 10 Inputlogiccurrent AIIHVIN= 10 OUTPUTLOGICVOH(3)IOH= (3)IOL= , , ,48kHzDACCHARACTERISTICSR esolution16 BitsAudiodatachannel1,2 ChannelDCACCURACYG ainmismatch,channel-to-channel 2 8%ofFSRG ainerror 2 8%ofFSRB ipolarzeroerror 3 6%ofFSRDYNAMICPERFORMANCE(4)RL>10k ,self-powered, (5)TotalharmonicRL>10k ,bus-powered,THD+ +noiseVOUT=0dBRL=32 ,self- ,VOUT=0dBTHD+NTotalharmonicdistortion+no iseVOUT= 60dB2%DynamicrangeEIAJ,A-weighted9098dBS /NSignal-to-noiseratioEIAJ,A-weighted909 8dBChannelseparation6070dB(1)HOST(2)

4 D+,D ,HOST,TEST,TEST0,TEST1,DT,PSEL,FSEL,XTI( 3)FUNC0,FUNC1,FUNC2(4)fIN=1kHz,usingtheS ystemTwo CascadeaudiomeasurementsystembyAudioPrec ision intheRMSmodewitha20-kHzLPFand400-HzHPF.( 5)THD+Nperformancevariesslightly,dependi ngontheeffectiveoutputload,includingdumm yloadR7, 2003 2009,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback3 ProductFolderLink(s):PCM2704 PCM2705 PCM2706 PCM2707 PCM2704 and PCM2705 Not Recommended For New DesignsPCM2704,,PCM2705 PCM2706,PCM2707 SLES081F JUNE2003 (continued)allspecificationsatTA=25 C,VBUS=5V,fS= ,fIN=1kHz,16-bitdata(unlessotherwisenote d)PCM2704DB,PCM2705DB,PCM2706 PJT, , LoadimpedanceHeadphoneACcoupling1632 3dB140kHzLPFfrequencyresponsef=20kHz 50dBDelaytime20 ,VCCL,VCCR, )3546 Line/headphoneSuspendmode(6)150190 ALineDACoperation76108mWPowerdissipation HeadphoneDACoperationRL=32 )116166(self-powered)Line/headphoneSuspe ndmode(6)495684 WLineDACoperation115158mWPowerdissipatio nHeadphoneDACoperationRL=32 )175242(bus-powered)Line/headphoneSuspen dmode(6)750998 WInternalpower-supplyVCCP,VCCL,VCCR, (7)VDDTEMPERATURERANGEO peratingtemperature 2585 C28-pinSSOP100(PCM2704/5) JAThermalresistance C/W32-pinTQFP80(PCM2706/7)(6)UnderUSBsus pendstate.

5 (7)VDD,VCCP,VCCL, 2003 2009,TexasInstrumentsIncorporatedProduct FolderLink(s):PCM2704 PCM2705 PCM2706 PCM2707 PCM2704 and PCM2705 Not Recommended For New DesignsPINASSIGNMENTS1234 5678910111213142827262524232221201918171 615 XTOCKDTPSELDOUTDGNDVDDD D+VBUSZGNDAGNDLVCCLVOUTLXTISSPNDTEST0 TEST1 HID2/MDHID1/MCHID0/MSHOSTVCCPPGNDVCOMAGN DRVCCRVOUTRPCM2704/PCM2705DB PACKAGE(TOP VIEW)PCM2706/PCM2707 PJT PACKAGE(TOP VIEW)23 22 21 20 191 22526272829303132161514131211109 PSELDTCKXTOXTISSPNDTESTFSELZGNDAGNDLVCCL VOUTLVOUTRVCCRAGNDRVCOM24183 456 7817 VBUSD+D VDDDGNDFUNC1 FUNC2 DOUTPGNDVCCPHOSTFUNC3 FUNC0 HID0/MSHID1/MCHID2/MDP0020-01 PCM2704,,PCM2705 PCM2706, JUNE2003 REVISEDJANUARY2009 Copyright 2003 2009,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback5 ProductFolderLink(s):PCM2704 PCM2705 PCM2706 PCM2707 PCM2704 and PCM2705 Not Recommended For New DesignsPCM2704,,PCM2705 PCM2706,PCM2707 SLES081F JUNE2003 (PCM2704DB/PCM2705DB) AnaloggroundforheadphoneamplifierofL-cha nnelAGNDR17 AnaloggroundforheadphoneamplifierofR-cha nnelCK2 OClockoutputforexternalROM(PCM2704).

6 Mustbeleftopen(PCM2705).D+9I/OUSB differentialinput/outputplus(1)D 8I/OUSB differentialinput/outputminus(1)DGND6 DigitalgroundDOUT5OS/PDIF outputDT3I/ODatainput/outputforexternalR OM(PCM2704).Mustbeleftopenwithpullupresi stor(PCM2705).(1)HID0/MS22 IHID keystateinput(mute),activeHIGH(PCM2704). MSinput(PCM2705).(2)HID1/MC23 IHID keystateinput(volumeup),activeHIGH(PCM27 04).MCinput(PCM2705).(2)HID2/MD24 IHID keystateinput(volumedown),activeHIGH(PCM 2704).MDinput(PCM2705).(2)HOST21 IHostdetectionduringself-poweredoperatio n(connecttoVBUS).Maxpowerselectduringbus -poweredoperation(LOW:100mA,HIGH:500mA). (3)PGND19 AnaloggroundforDAC,OSC,andPLLPSEL4 IPowersourceselect(LOW:self-power,HIGH:b us-power)(1)SSPND27 OSuspendflag,activeLOW(LOW:suspend,HIGH: operational) (1) (1)VBUS10 ConnecttoUSBpower(VBUS) Analogpowersupplyforheadphoneamplifierof L-channel(4)VCCP20 AnalogpowersupplyforDAC,OSC,andPLL(4)VCC R16 Analogpowersupplyforheadphoneamplifierof R-channel(4)VCOM18 CommonvoltageforDAC(VCCP/2).

7 Digitalpowersupply(4)VOUTL14 ODAC analogoutputforL-channelVOUTR15 ODAC analogoutputforR-channelXTI28 ICrystaloscillatorinput(1)XTO1 OCrystaloscillatoroutputZGND11 Groundforinternalregulator(1)LV-TTLlevel (2)LV-TTLlevelwithinternalpulldown(3)LV- TTLlevel,5-Vtolerant(4) 2003 2009,TexasInstrumentsIncorporatedProduct FolderLink(s):PCM2704 PCM2705 PCM2706 PCM2707 PCM2704 and PCM2705 Not Recommended For New DesignsPCM2704,,PCM2705 PCM2706, JUNE2003 REVISEDJANUARY2009 TerminalFunctions(PCM2706 PJT/PCM2707 PJT) AnaloggroundforheadphoneamplifierofL-cha nnelAGNDR31 AnaloggroundforheadphoneamplifierofR-cha nnelCK14 OClockoutputforexternalROM(PCM2706).Must beleftopen(PCM2707).D+23I/OUSB differentialinput/outputplus(1)D 22I/OUSB differentialinput/outputminus(1)DGND20 DigitalgroundDOUT17OS/PDIF output/I2S dataoutputDT15I/ODatainput/outputforexte rnalROM(PCM2706).

8 Mustbeleftopenwithpullupresistor(PCM2707 ).(1)FSEL9 IFunctionselect(LOW:I2 SDATA output,HIGH:S/PDIF output)(1)FUNC05I/OHID keystateinput(nexttrack),activeHIGH(FSEL =1).I2 SLRclockoutput(FSEL=0).(2)FUNC119I/OHID keystateinput(previoustrack),activeHIGH( FSEL=1).I2 Sbitclockoutput(FSEL=0).(2)FUNC218I/OHID keystateinput(stop),activeHIGH(FSEL=1).I 2 Ssystemclockoutput(FSEL=0).(2)FUNC34 IHID keystateinput(play/pause),activeHIGH(FSE L=1).I2 Sdatainput(FSEL=0).(2)HID0/MS6 IHID keystateinput(mute),activeHIGH(PCM2706). MSinput(PCM2707)(2)HID1/MC7 IHID keystateinput(volumeup),activeHIGH(PCM27 06).MCinput(PCM2707)(2)HID2/MD8 IHID keystateinput(volumedown),activeHIGH(PCM 2706).MDinput(PCM2707)(2)HOST3 IHostdetectionduringself-poweredoperatio n(connecttoVBUS).Maxpowerselectduringbus -poweredoperation.(LOW:100mA,HIGH:500mA) .(3)PGND1 AnaloggroundforDAC,OSC,andPLLPSEL16 IPowersourceselect(LOW:self-power,HIGH:b us-power)(1)SSPND11 OSuspendflag,activeLOW(LOW:suspend,HIGH: operational) (1)VBUS24 ConnecttoUSBpower(VBUS) Analogpowersupplyforheadphoneamplifierof L-channel(4)VCCP2 AnalogpowersupplyforDAC,OSC,andPLL(4)VCC R30 Analogpowersupplyforheadphoneamplifierof R-channel(4)VCOM32 CommonvoltageforDAC(VCCP/2).

9 Digitalpowersupply(4)VOUTL28 ODAC analogoutputforL-channelVOUTR29 ODAC analogoutputforR-channelXTI12 ICrystaloscillatorinput(1)XTO13 OCrystaloscillatoroutputZGND25 Groundforinternalregulator(1)LV-TTLlevel (2)LV-TTLlevelwithinternalpulldown(3)LV- TTLlevel,5-Vtolerant(4) 2003 2009,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback7 ProductFolderLink(s):PCM2704 PCM2705 PCM2706 PCM2707 PCM2704 and PCM2705 Not Recommended For New DesignsEEPROMI nterface(1)SSPNDVCCPVCCLVCCRVDDZGNDDGNDA GNDRAGNDLPGNDVCOMA nalogPLLFIFODACVOUTLS/PDIF EncoderXTIXTO12 MHzPLL ( 8)96 MHzTracker(SpAct)USBP rotocolControllerPowerManager5-V to RegulatorControlEndpointISO-OutEndpointH IDE ndpointVBUSUSB SIED+D XCVRDTHOSTHID0/MSHID1/MCHID2/MDCKVOUTRDO UTPSELTEST0 TEST1 SPII nterface(2)B0054-01 PCM2704,,PCM2705 PCM2706,PCM2707 SLES081F JUNE2003 (PCM2704DB/PCM2705DB)(1)AppliestoPCM2704 DB(2)AppliestoPCM2705DB8 SubmitDocumentationFeedbackCopyright 2003 2009,TexasInstrumentsIncorporatedProduct FolderLink(s).

10 PCM2704 PCM2705 PCM2706 PCM2707 PCM2704 and PCM2705 Not Recommended For New DesignsSSPNDVCCPVCCLVCCRVDDZGNDDGNDAGNDR AGNDLPGNDVCOMA nalogPLLFIFODACVOUTLS/PDIFE ncoderXTIXTO12 MHzPLL ( 8)96 MHzTracker(SpAct)USBP rotocolControllerPowerManager5-V to RegulatorControlEndpointISO-OutEndpointH IDE ndpointVBUSUSB SIED+D XCVRDTHOSTHID0/MSHID1/MCHID2/MDCKVOUTRFU NC1 DOUTFUNC3I2S I/FPSELTESTEEPROMI nterface(1)SPII nterface(2)FUNC2 FUNC0 FSELBCKDINSYSCKLRCKDOUTHID3: Next Track(1)HID4: Previous Track(1)HID5: Stop(1)HID6: Play/Pause(1)B0055-01 PCM2704,,PCM2705 PCM2706, JUNE2003 REVISEDJANUARY2009 BLOCKDIAGRAM(PCM2706 PJT/PCM2707 PJT)(1)AppliestoPCM2706 PJT(2)AppliestoPCM2707 PJTC opyright 2003 2009,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback9 ProductFolderLink(s):PCM2704 PCM2705 PCM2706 PCM2707 PCM2704 and PCM2705 Not Recommended For New DesignsTYPICALPERFORMANCECURVESOFINTERNA LFILTERDACD igitalInterpolationFilterFrequencyRespon sef Frequency [ fS] 140 120 100 80 60 40 20001234 Amplitude dBG001f Frequency [ fS] dBG002 DACA nalogLow-PassFilterFrequencyResponse Frequency kHzAmplitude 80 60 40 200f Frequency kHzAmplitude dB11001k10k10G004 PCM2704,,PCM2705 PCM2706,PCM2707 SLES081F JUNE2003 C,VBUS=5V,fS= ,fIN=1kHz,16-bitdata(unlessotherwisenote d).