您的當前位置：首頁 pcm1609a 數(shù)字解碼芯片特性

pcm1609a 數(shù)字解碼芯片特性

來源：九壹網(wǎng)

?Not Recommended For New Designs

Burr?Brown Productsfrom Texas InstrumentsPCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

24-BIT192-kHzSAMPLING8-CHANNELENHANCEDMULTILEVEL

DELTA-SIGMADIGITAL-TO-ANALOGCONVERTER

FEATURESAPPLICATIONS

???????

IntegratedA/VReceivers

DVDMovieandAudioPlayersHDTVReceiversCarAudioSystems

DVDAdd-OnCardsforHigh-EndPCsDigitalAudioWorkstations

OtherMultichannelAudioSystems

?24-BitResolution?AnalogPerformance

–DynamicRange:105dBTypical–SNR:105dBTypical–THD+N:0.002%Typical

–Full-ScaleOutput:3.1Vp-p,Typical?4×/8×OversamplingInterpolationFilter–Stop-BandAttenuation:–55dB–Pass-BandRipple:±0.03dB

?SamplingFrequency:5kHzto200kHz

?Accepts16-,18-,20-,and24-BitAudioData?DataFormats:Standard,I2S,andLeft-Justified?SystemClock:128fS,192fS,256fS,384fS,512fS,or768fS

?User-ProgrammableFunctions

–DigitalAttenuation:0dBto–63dB,0.5dB/Step–SoftMute

–ZeroFlagsCanBeUsedasGeneral-PurposeLogicOutput–DigitalDe-Emphasis

–DigitalFilterRolloff:SharporSlow?Dual-SupplyOperation–5-VAnalog–3.3-VDigital

?5-VTolerantDigitalLogicInputs?Package:LQFP-48

DESCRIPTION

ThePCM1609AisaCMOS,monolithicintegratedcircuitthatfeatureseight24-bitaudiodigital-to-analogconverters(DACs)andsupportcircuitryinasmallLQFP-48package.TheDACsuseTexasInstruments(TI)enhancedmultileveldelta-sigmaarchitecturethatemploysfourth-ordernoiseshapingand8-levelamplitudequantizationtoachieveexcellentsignal-to-noiseperformanceandahightolerancetoclockjitter.

ThePCM1609Aacceptsindustry-standardaudiodataformatswith16-to24-bitaudiodata.Samplingratesupto200kHzaresupported.Afullsetofuser-programmablefunctionsisaccessiblethrougha4-wireserialcontrolportthatsupportsregisterwriteandreadfunctions.

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

FilterProisatrademarkofTexasInstruments.

Allothertrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.ProductsconformtospecificationsperthetermsoftheTexasInstrumentsstandardwarranty.Productionprocessingdoesnotnecessarilyincludetestingofallparameters.

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comThisintegratedcircuitcanbedamagedbyESD.TexasInstrumentsrecommendsthatallintegratedcircuitsbehandledwithappropriateprecautions.Failuretoobserveproperhandlingandinstallationprocedurescancausedamage.

ESDdamagecanrangefromsubtleperformancedegradationtocompletedevicefailure.Precisionintegratedcircuitsmaybemoresusceptibletodamagebecauseverysmallparametricchangescouldcausethedevicenottomeetitspublishedspecifications.

ABSOLUTEMAXIMUMRATINGS(1)

overoperatingfree-airtemperaturerange(unlessotherwisenoted)

VDDVCCVCC,VDD

Power-supplyvoltagerangeSupplyvoltagedifferenceGroundvoltagedifferencesDigitalinputvoltagerange

Inputcurrent(exceptpowersupplypins)OperatingtemperaturerangeunderbiasStoragetemperaturerangeJunctiontemperatureLeadtemperature(soldering)Packagetemperature(reflow,peak)

(1)

–0.3Vto4V–0.3Vto6.5VVCC–VDD<3V

±0.1V–0.3Vto6.5V

±10mA–40°Cto125°C–55°Cto150°C

150°C260°C,5s260°C

Stressesbeyondthoselistedunder\"absolutemaximumratings\"maycausepermanentdamagetothedevice.Thesearestressratingsonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunder\"recommendedoperatingconditions\"isnotimplied.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.

RECOMMENDEDOPERATINGCONDITIONS

MIN

Digitalsupplyvoltage,VDDAnalogsupplyvoltage,VCCDigitalinputlogicfamilyDigitalinputclockfrequencyAnalogoutputloadresistanceAnalogoutputloadcapacitanceDigitaloutputloadcapacitanceOperatingfree-airtemperature,TA

–25

SystemclockSamplingclock

8.192325

502085

34.5

NOM3.35TTL

36.8192

MHzkHzk?pFpF°C

MAX3.65.5

UNITVV

2SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

ELECTRICALCHARACTERISTICS

AllspecificationsatTA=25°C,VCC=5V,VDD=3.3V,systemclock=384fS(fS=44.1kHz),and24-bitdata(unlessotherwisenoted)

PARAMETER

RESOLUTIONDATAFORMAT

AudiodatainterfaceformatsAudiodatabitlengthAudiodataformat

SamplingfrequencySystemclockfrequency

DIGITALINPUT/OUTPUT

Logicfamily

VIHVILIIH(1)IIL(1)IIH(2)IIL(2)VOHVOL

Outputlogiclevel

(3)(4)

TESTCONDITIONSMINTYP24

MAXUNITBits

Standard,I2S,left-justified16/18/20/24bit,selectableMSBfirst,binary2scomplement

128fS,192fS,256fS,384fS,512fS,768fS

TTLcompatible2

0.8

VIN=VDD

10–10

2.4

0.002%0.004%0.005%0.7%0.9%1%

105103102

103101100±0.5±1±1

VOUT=0.5VCCatbipolarzero

±30

±6±3±60

dB%ofFSR%ofFSRmVdBdBdB

0.008%

100–10

VdcμA

VIN=0VVIN=VDDVIN=0VIOH=–4mAIOL=4mA

VOUT=0dB,fS=44.1kHzVOUT=0dB,fS=96kHzVOUT=0dB,fS=192kHzVOUT=–60dB,fS=44.1kHzVOUT=–60dB,fS=96kHzVOUT=–60dB,fS=192kHzEIAJ,A-weighted,fS=44.1kHz

Vdc

200

kHz

Inputlogiclevel

Inputlogiccurrent

DYNAMICPERFORMANCE

THD+NTotalharmonicdistortion+noise

Dynamicrange

A-weighted,fS=96kHzA-weighted,fS=192kHzEIAJ,A-weighted,fS=44.1kHz

SNRSignal-to-noiseratio

A-weighted,fS=96kHzA-weighted,fS=192kHzfS=44.1kHz

ChannelseparationLevellinearityerror

DCACCURACY

Gainerror

Gainmismatch,channel-to-channelBipolarzeroerror

(1)(2)(3)(4)

fS=96kHzfS=192kHzVOUT=–90dB

Pins31,38,40,41,45–47(DATA4,SCKI,BCK,LRCK,DATA1,DATA2,DATA3)Pins34–37(MDI,MC,ML,RST)AnalogperformancespecificationsaretestedusingaSystemTwo?CascadeaudiomeasurementsystembyAudioPrecision?with400-HzHPFon,30-kHzLPFon,averagemodewith20-kHzbandwidthlimiting.Theloadconnectedtotheanalogoutputis5k?orlargerviacapacitiveloading.

Conditionsin192-kHzoperationaresystemclock=128fSandoversamplingrate=fSinregister12.

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comELECTRICALCHARACTERISTICS(continued)

AllspecificationsatTA=25°C,VCC=5V,VDD=3.3V,systemclock=384fS(fS=44.1kHz),and24-bitdata(unlessotherwisenoted)

PARAMETER

ANALOGOUTPUT

OutputvoltageCentervoltageLoadimpedance

DIGITALFILTERPERFORMANCE

GroupdelaytimeDe-emphasiserror

FilterCharacteristics1,SharpRolloff

PassbandPassbandStopbandPass-bandrippleStop-bandattenuationStop-bandattenuation

FilterCharacteristics2,SlowRolloff

PassbandPassbandStopbandPass-bandrippleStop-bandattenuation

ANALOGFILTERPERFORMANCE

Frequencyresponse

POWER-SUPPLYREQUIREMENTSVDDVCCIDD(6)

Supplycurrent

ICC

Voltagerange

fS=44.1kHzfS=96kHzfS=192kHzfS=44.1kHzfS=96kHzfS=192kHzfS=44.1kHz

Powerdissipation

TEMPERATURERANGETAθJA(5)(6)

OperatingtemperatureThermalresistance

Conditionsin192-kHzoperationaresystemclock=128fSandoversamplingrate=fSinregister12.SCKOisdisabled.

–25

100

°C°C/W

fS=96kHzfS=192kHz

(5)

TESTCONDITIONS

Fullscale(–0dB)ACload

MINTYP0.62VCC0.5VCC

MAXUNITVp-pVdck?

20/fS±0.1

0.4fS0.487fS

±0.03dB–3dB

0.6fS

±0.03

Stopband=0.6fSStopband=0.567fS±0.5dB–3dB

0.884fS

±0.5

Stopband=0.884fSf=20kHzf=44kHz

34.5–40

–0.03–0.23.35184040333636224312312

313463.65.525

–50–55

0.198fS0.39fS

dBdBdB

dBdB

Vdc

4SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

FUNCTIONALBLOCKDIAGRAM

Output Amp andLow-Pass FilterOutput Amp andLow-Pass FilterOutput Amp andLow-Pass FilterOutput Amp andLow-Pass FilterOutput Amp andLow-Pass FilterOutput Amp andLow-Pass FilterOutput Amp andLow-Pass FilterOutput Amp andLow-Pass FilterBCKLRCKSerialInputI/FDACVOUT1DACVOUT2DATA1 (1, 2)DATA2 (3, 4)DATA3 (5, 6)DATA4 (7, 8)DAC4× / 8×OversamplingDigital FilterwithFunctionControllerVOUT3EnhancedMultilevelDelta-SigmaModulatorDACVOUT4DACVOUT5TESTRSTMLMCMDIMDODACSystem ClockSCKISystem ClockDACFunctionControlI/FVOUT6DACVOUT7VOUT8VCOMManagerZero DetectPower SupplySCKOZERO1/GPO1ZERO2/GPO2ZERO3/GPO3ZERO4/GPO4ZERO5/GPO5ZERO6/GPO6AGND1?6VCC1?5ZERO7ZERO8VDDDGNDB0033-03Copyright?2005–2008,TexasInstrumentsIncorporatedSubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comPT PACKAGE(TOP VIEW)AGND13635343332313029282726RST37SCKI38SCKO39BCK40LRCK41TEST42VDD43DGND44DATA145DATA246DATA347ZEROA481234567101112AGND22524VCC323AGND322VCC421AGND420VOUT819AGND618VCC517AGND516VOUT715VCOM14VOUT113VOUT2ZERO8ZERO7DATA4VCC1PCM1609AZERO1/GPO1ZERO2/GPO2ZERO3/GPO3ZERO4/GPO4ZERO5/GPO5ZERO6/GPO6VOUT6VOUT5VOUT4VCC2MDOMDIMCNCMLVOUT3NCNCP0028-03TERMINALFUNCTIONS

TERMINALNAMEAGND1AGND2AGND3AGND4AGND5AGND6BCKDATA1DATA2DATA3DATA4DGNDLRCKMCMDIMDO(1)(2)(3)6

NO.2725232117194047314441353433

I/O––––––IIIII–IIIO

AnaloggroundAnaloggroundAnaloggroundAnaloggroundAnaloggroundAnalogground

Shiftclockinputforserialaudiodata.Clockmustbeoneof32fS,48fS,orfS.SerialaudiodataforVOUT1andVOUT2SerialaudiodataforVOUT3andVOUT4SerialaudiodataforVOUT5andVOUT6SerialaudiodataforVOUT7andVOUT8Digitalground

Leftandrightclock.Thisclockisequaltothesamplingrate,fS.Shiftclockforserialcontrolport

(2)

(2)(3)

(1)

(1)(1)(1)(1)

(1)

DESCRIPTION

Serialdatainputforserialcontrolport

Serialdataoutputforserialcontrolport

Schmitt-triggerinput,5-Vtolerant

Schmitt-triggerinputwithinternalpulldown,5-Vtolerant3-stateoutput

SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

TERMINALFUNCTIONS(continued)

TERMINALNAMEMLNCRSTSCKISCKOTESTVCC1VCC2VCC3VCC4VCC5VCOMVDDVOUT1VOUT2VOUT3VOUT4VOUT5VOUT6VOUT7VOUT8ZERO1/GPO1ZERO2/GPO2ZERO3/GPO3ZERO4/GPO4ZERO5/GPO5ZERO6/GPO6ZERO7ZERO8ZEROA

NO.367,8,2937383942282624221813141312111091620123456303248

I/OI–IIO––––––O–OOOOOOOOOOOOOOOOO

LatchenableforserialcontrolportNoconnection

Systemreset,activelow

(2)

(1)

(2)

DESCRIPTION

Systemclockinput.Inputfrequencyisoneof128fS,192fS,256fS,384fS,512fS,or768fS.

Bufferedclockoutput.Outputfrequencyisoneof128fS,192fS,256fS,384fS,512fS,or768fS,orone-halfof128fS,192fS,256fS,384fS,512fS,or768fS.Test.ThispinshouldbeconnectedtoDGND.Analogpowersupply,5VAnalogpowersupply,5VAnalogpowersupply,5VAnalogpowersupply,5VAnalogpowersupply,5V

Commonvoltage.Thispinshouldbebypassedwitha10-μFcapacitortoAGND.Digitalpowersupply,3.3V

VoltageoutputofaudiosignalcorrespondingtoleftchannelonDATA1VoltageoutputofaudiosignalcorrespondingtorightchannelonDATA1VoltageoutputofaudiosignalcorrespondingtoleftchannelonDATA2VoltageoutputofaudiosignalcorrespondingtorightchannelonDATA2VoltageoutputofaudiosignalcorrespondingtoleftchannelonDATA3VoltageoutputofaudiosignalcorrespondingtorightchannelonDATA3VoltageoutputofaudiosignalcorrespondingtoleftchannelonDATA4VoltageoutputofaudiosignalcorrespondingtorightchannelonDATA4Zero-dataflagforVOUT1.CanalsobeusedasGPOpin.Zero-dataflagforVOUT2.CanalsobeusedasGPOpin.Zero-dataflagforVOUT3.CanalsobeusedasGPOpin.Zero-dataflagforVOUT4.CanalsobeusedasGPOpin.Zero-dataflagforVOUT5.CanalsobeusedasGPOpin.Zero-dataflagforVOUT6.CanalsobeusedasGPOpin.Zero-dataflagforVOUT7Zero-dataflagforVOUT8

Zero-dataflag.LogicalANDofZERO1throughZERO8.

(2)

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comTYPICALPERFORMANCECURVES

AllspecificationsatTA=25°C,VCC=5V,VDD=3.3V,fS=44.1kHz,systemclock=384fS,and24-bitinputdata(unless

otherwisenoted)

DigitalFilter(De-EmphasisOff)

FREQUENCYRESPONSE(SHARPROLLOFF)

0?20?40?60?80?100?120?140012Frequency [×??fS]34G001PASS-BANDFREQUENCYRESPONSE(SHARPROLLOFF)

0.050.040.030.020.010.00?0.01?0.02?0.03?0.04?0.050.00.10.20.30.40.5G002Amplitude ? dBAmplitude ? dBFrequency [×??fS]Figure1.

FREQUENCYRESPONSE(SLOWROLLOFF)

0?20?40?60?80?100?120?140012Frequency [×??fS]34G003Figure2.

TRANSITIONCHARACTERISTICS(SLOWROLLOFF)

3210?1?2?3?4?50.00.10.20.30.40.5G004Amplitude ? dBAmplitude ? dBFrequency [×??fS]Figure3.Figure4.

8SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

TYPICALPERFORMANCECURVES(continued)

AllspecificationsatTA=25°C,VCC=5V,VDD=3.3V,fS=44.1kHz,systemclock=384fS,and24-bitinputdata(unlessotherwisenoted)

DigitalFilter(De-EmphasisCurves)

DE-EMPHASIS(fS=32kHz)

0?1?2?3Level ? dBError ? dBDE-EMPHASISERROR(fS=32kHz)

0.50.40.30.20.10.0?0.1?0.2?0.3?0.4?0.5?4?5?6?7?8?9?1002468101214G00502468101214G006f ? Frequency ? kHzf ? Frequency ? kHzFigure5.

DE-EMPHASIS(fS=44.1kHz)

0?1?2?3Level ? dBFigure6.

DE-EMPHASISERROR(fS=44.1kHz)

0.50.40.30.2Error ? dB?4?5?6?7?8?9?1002468101214161820G0070.10.0?0.1?0.2?0.3?0.4?0.502468101214161820G008f ? Frequency ? kHzf ? Frequency ? kHzFigure7.

DE-EMPHASIS(fS=48kHz)

0?1?2?3Level ? dBError ? dBFigure8.

DE-EMPHASISERROR(fS=48kHz)

0.50.40.30.20.10.0?0.1?0.2?0.3?0.4?0.5?4?5?6?7?8?9?100246810121416182022G0090246810121416182022G010f ? Frequency ? kHzf ? Frequency ? kHzFigure9.

Figure10.

SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comTYPICALPERFORMANCECURVES(continued)

ANALOGDYNAMICPERFORMANCE

AllspecificationsatTA=25°C,VCC=5V,VDD=3.3V,and24-bitinputdata(unlessotherwisenoted).Conditionsin192-kHzoperationaresystemclock=128fS,DAC3throughDAC6disabledinregister8,andoversamplingrate=fS(setbyOVERbitinregister12).

SupplyVoltageCharacteristics

TOTALHARMONICDISTORTION+NOISE

SUPPLYVOLTAGE

(VDD=3.3V)

THD+N ? Total Harmonic Distortion + Noise ? %DYNAMICRANGE

SUPPLYVOLTAGE

(VDD=3.3V)

11010?60dB/96kHz, 384fS10.10.01?60dB/44.1kHz, 384fS0dB/192kHz, 128fS?60dB/192kHz, 128fS108Dynamic Range ? dB1061041021009844.1kHz, 384fS96kHz, 384fS0dB/96kHz, 384fS192kHz, 128fS0.0010dB/44.1kHz, 384fS0.00014.04.55.0VCC ? Supply Voltage ? V5.56.0G0119.04.55.0VCC ? Supply Voltage ? V5.56.0G012Figure11.

SIGNAL-TO-NOISERATIO

SUPPLYVOLTAGE

(VDD=3.3V)

11011010844.1kHz, 384fS96kHz, 384fSFigure12.

CHANNELSEPARATION

SUPPLYVOLTAGE

(VDD=3.3V)

SNR ? Signal-to-Noise Ratio ? dB1081061041021009.0192kHz, 128fSChannel Separation ? dB1061041021009.044.1kHz, 384fS96kHz, 384fS192kHz, 128fS4.55.0VCC ? Supply Voltage ? V5.56.0G0134.55.0VCC ? Supply Voltage ? V5.56.0G014Figure13.Figure14.

10SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

TYPICALPERFORMANCECURVES(continued)

ANALOGDYNAMICPERFORMANCE(continued)

TemperatureCharacteristics

TOTALHARMONICDISTORTION+NOISE

TEMPERATURE

THD+N ? Total Harmonic Distortion + Noise ? %DYNAMICRANGE

TEMPERATURE

11010?60dB/192kHz, 128fS10.10.01?60dB/44.1kHz, 384fS0dB/192kHz, 128fS0dB/96kHz, 384fS?60dB/96kHz, 384fS108Dynamic Range ? dB10610410244.1kHz, 384fS96kHz, 384fS192kHz, 128fS100980.0010dB/44.1kHz, 384fS0.0001?50?250255075100G01596?50?250255075100G016TA ? Free-Air Temperature ? °CTA ? Free-Air Temperature ? °CFigure15.

SIGNAL-TO-NOISERATIO

TEMPERATURE

110110108Figure16.

CHANNELSEPARATION

TEMPERATURE

SNR ? Signal-to-Noise Ratio ? dB10810610410210096?50192kHz, 128fSChannel Separation ? dB44.1kHz, 384fS96kHz, 384fS106104102100192kHz, 128fS96?5044.1kHz, 384fS96kHz, 384fS?250255075100G017?250255075100G018TA ? Free-Air Temperature ? °CTA ? Free-Air Temperature ? °CFigure17.Figure18.

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comSYSTEMCLOCKANDRESETFUNCTIONS

SYSTEMCLOCKINPUT

ThePCM1609Arequiresasystemclockforoperatingthedigitalinterpolationfiltersandmultileveldelta-sigmamodulators.ThesystemclockisappliedattheSCKIinput(pin38).Table1showsexamplesofsystemclockfrequenciesforcommonaudiosamplingrates.

Figure19showsthetimingrequirementsforthesystemclockinput.Foroptimalperformance,itisimportanttouseaclocksourcewithlowphasejitterandnoise.ThePLL170xmulticlockgeneratorfromTiisanexcellentchoiceforprovidingthePCM1609Asystemclock.

Table1.SystemClockRatesforCommonAudioSamplingFrequencies

SAMPLINGFREQUENCY

(kHz)

8163244.146192

(1)

SYSTEMCLOCKFREQUENCY(fSCLK)

(MHz)

128fS

(1)(1)(1)(1)(1)(1)

192fS

(1)(1)(1)(1)(1)(1)

256fS2.0484.0968.19211.2612.28824.576

(1)

384fS3.0726.14412.28816.934418.43236.8

(1)

512fS4.0968.19216.38422.579224.579.152

(1)

768fS6.14412.28824.57633.868836.8

(1)(1)

24.57636.8

Thissystemclockisnotsupportedforthegivensamplingfrequency.

tw(SCKH)HSystem ClockLtw(SCKL)0.8 VSystem ClockPulse CycleTime(1)T0005A082 VSYMBOLtw(SCKH)tw(SCKL)

(1)

Systemclockpulseduration,HIGHSystemclockpulseduration,LOW1/128fS,56fS,1/384fS,1/512fS,and1/768fS.

MIN77

MAXUNITnsns

Figure19.SystemClockTiming

SYSTEMCLOCKOUTPUT

AbufferedversionofthesystemclockinputisavailableattheSCKOoutput(pin39).SCKOcanoperateateitherfull(fSCKI)orhalf(fSCKI/2)rate.TheSCKOoutputfrequencycanbeprogrammedusingtheCLKDbitofregister9.TheSCKOoutputpincanalsobeenabledordisabledusingtheCLKEbitofregister9.IftheSCKOoutputisnotrequired,itisrecommendedtodisableitusingtheCLKEbit.ThedefaultisSCKOenabled.

12SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

POWER-ONANDEXTERNALRESETFUNCTIONS

ThePCM1609Aincludesapower-onresetfunction(seeFigure20).Withthesystemclockactive,andVDD>2V(typical,1.6Vto2.4V),thepower-onresetfunctionisenabled.Theinitializationsequencerequires1024systemclocksfromthetimeVDD>2V.Aftertheinitializationperiod,thePCM1609Aissettoitsresetdefaultstate,asdescribedintheModeControlRegisterssectionofthisdatasheet.

ThePCM1609AalsoincludesanexternalresetcapabilityusingtheRSTinput(pin37).ThisallowsanexternalcontrollerormasterresetcircuittoforcethePCM1609Atoinitializetoitsresetdefaultstate.Fornormaloperation,RSTshouldbesettoalogic1.

TheexternalresetoperationandtimingisshowninFigure21.TheRSTpinissettologic-0foraminimumof20ns.Aftertheinitializationsequenceiscompleted,thePCM1609Aissettoitsresetdefaultstate,asdescribedintheModeControlRegisterssectionofthisdatasheet.

Duringtheresetperiod(1024systemclocks),theanalogoutputsareforcedtothebipolarzerolevel(orVCC/2).Aftertheresetperiod,theinternalregistersareinitializedinthenext1/fSperiodand,ifSCKI,BCK,andLRCKareprovidedcontinuously,thePCM1609AprovidesproperanalogoutputwiththegroupdelaytimegivenintheElectricalCharacteristicssectionofthisdatasheet.

TheexternalresetisespeciallyusefulinapplicationswherethereisadelaybetweenPCM1609Apowerupandsystem-clockactivation.Inthiscase,theRSTpinshouldbeheldatalogic-0leveluntilthesystemclockhasbeenactivated.

2.4 V2 V1.6 V0 VResetInternal ResetReset RemovalVDDDon’t CareSystem Clock1024 System ClocksT0014-08Figure20.Power-OnResetTiming

RSTResetInternal ResetReset Removal1024 System ClocksSystem ClockT0015-06Figure21.ExternalResetTiming

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comAUDIOSERIALINTERFACE

TheaudioserialinterfaceforthePCM1609Aconsistsofa5-wiresynchronousserialport.ItincludesLRCK(pin41),BCK(pin40),DATA1(pin45),DATA2(pin46),DATA3(pin47),andDATA4(pin31).BCKistheserialaudiobitclock,andisusedtoclocktheserialdatapresentonDATA1,DATA2,DATA3,andDATA4intotheaudiointerfaceserialshiftregister.SerialdataisclockedintothePCM1609AontherisingedgeofBCK.LRCKistheserialaudioleft/rightwordclock.Itisusedtolatchserialdataintotheserialaudiointerfaceinternalregisters.BothLRCKandBCKmustbesynchronoustothesystemclock.Ideally,itisrecommendedthatLRCKandBCKbederivedfromthesystemclockinput,SCKI.LRCKisoperatedatthesamplingfrequency(fS).BCKcanbeoperatedat32,48,ortimesthesamplingfrequency(I2SformatdoesnotsupportBCK=32fS).

InternaloperationofthePCM1609AissynchronizedwithLRCK.Accordingly,internaloperationofthedeviceissuspendedwhenthesamplingrateclock(LRCK)ischanged,orwhenSCKIand/orBCKisinterruptedatleastfora3-bitclockcycle.IfSCKI,BCK,andLRCKareprovidedcontinuouslyafterthissuspendedstate,theinternaloperationisresynchronizedautomaticallywithinaperiodoflessthan3/fS.Duringthisresynchronizationperiodandfora3/fStimethereafter,theanalogoutputsareforcedtothebipolarzerolevel,VCC/2.Externalresettingisnotrequired.

AUDIODATAFORMATSANDTIMING

ThePCM1609Asupportsindustry-standardaudiodataformats,includingstandard,I2S,andleft-justified(seeFigure22).Dataformatsareselectedusingtheformatbits,FMT[2:0],inregister9.Thedefaultdataformatis24-bitstandard.Allformatsrequirebinary2scomplement,MSB-firstaudiodata.SeeFigure23foradetailedtimingdiagramoftheserialaudiointerface.

DATA1,DATA2,DATA3,andDATA4eachcarrytwoaudiochannels,designatedastheleftandrightchannels.Theleft-channeldataalwaysprecedestheright-channeldataintheserialdatastreamforalldataformats.Table2showsthemappingofthedigitalinputdatatotheanalogoutputpins.

14SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

(1) Standard Data Format; L-Channel = HIGH, R-Channel = LOW1/fSLRCKL-ChannelR-ChannelBCK(= 32 fS, 48 fS, or fS)16-Bit Right-Justified, BCK = 32 fSDATA141516123141516LSB123141516LSBMSB16-Bit Right-Justified, BCK = 48 fS or fSDATA141516123MSB141516LSB123141516LSBMSB18-Bit Right-JustifiedDATA161718123MSB161718LSB123161718LSBMSB20-Bit Right-JustifiedDATA181920123MSB181920LSB123181920LSBMSB24-Bit Right-JustifiedDATA222324123MSB222324LSB123222324LSBMSBMSB(2) I2S Data Format; L-Channel = LOW, R-Channel = HIGH1/fSLRCKBCK(= 48 fS, or fS)L-ChannelR-ChannelDATA123N–2N–1N123N–2N–1N12MSBLSBMSBLSB(3) Left-Justified Data Format; L-Channel = HIGH, R-Channel = LOW1/fSLRCKL-ChannelR-ChannelBCK(= 48 fS, or fS)DATA123N–2N–1N123N–2N–1N12MSBLSBMSBLSBT0009-05Figure22.AudioDataInputFormats

SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comLRCK1.4 Vt(BCH)t(BCL)t(LB)BCKt(BCY)t(BL)1.4 VDATA1, DATA2,DATA3, DATA4t(DS)t(DH)1.4 VT0010-07SYMBOLt(BCY)t(BCH)t(BCL)t(BL)t(LB)t(DS)t(DH)(1)

BCKpulsecycletimeBCKhigh-leveltimeBCKlow-leveltimeBCKrisingedgetoLRCKedgeLRCKfallingedgetoBCKrisingedgeDATAsetuptimeDATAholdtimefSisthesamplingfrequency(e.g.,44.1kHz,48kHz,96kHz,etc.)

MIN1/(fS)(1)353510101010MAXUNITnsnsnsnsnsnsFigure23.AudioInterfaceTiming

Table2.AudioInputDatatoAnalogOutputMapping

DATAINPUTDATA1DATA1DATA2DATA2DATA3DATA3DATA4DATA4

CHANNEL

LeftRightLeftRightLeftRightLeftRight

ANALOGOUTPUT

VOUT1VOUT2VOUT3VOUT4VOUT5VOUT6VOUT7VOUT8

16SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

SERIALCONTROLINTERFACE

Theserialcontrolinterfaceisa4-wiresynchronousserialportthatoperatesasynchronouslytotheserialaudiointerface.Theserialcontrolinterfaceisusedtoprogramandreadtheon-chipmoderegisters.ThecontrolinterfaceincludesMDO(pin33),MDI(pin34),MC(pin35),andML(pin36).MDOistheserialdataoutputusedtoreadbackthevaluesofthemoderegisters.MDIistheserialdatainputusedtoprogramthemoderegisters.MCistheserialbitclockusedtoshiftdatainandoutofthecontrolport.MListhecontrolportlatchclock.

REGISTERWRITEOPERATION

Allwriteoperationsfortheserialcontrolportuse16-bitdatawords.Figure24showsthecontroldatawordformat.Themostsignificantbit(MSB)istheread/write(R/W)bit.Whensetto0,thisbitindicatesawriteoperation.Sevenbits,labeledIDX[6:0],settheregisterindex(oraddress)forthewriteoperation.Theleastsignificanteightbits,D[7:0],containthedatatobewrittentotheregisterspecifiedbyIDX[6:0].

Figure25showsthefunctionaltimingdiagramforwritingtotheserialcontrolport.MLisheldatalogic-1stateuntilaregisteristobewritten.Tostarttheregisterwritecycle,MLissettologic0.SixteenclocksarethenprovidedonMC,correspondingtothe16bitsofthecontroldatawordonMDI.Afterthesixteenthclockcyclehascompleted,MLissettologic1tolatchthedataintotheindexedmodecontrolregister.

MSBR/WIDX6IDX5IDX4IDX3IDX2IDX1IDX0D7D6D5D4D3D2D1LSBD0Register Index (or Address)Read/Write Operation0 = Write Operation1 = Read Operation (Register Index is Ignored)Register DataR0001-02Figure24.ControlDataWordFormatforMDI

MLMCMDIXR/WIDX6IDX5IDX4IDX3IDX2IDX1IDX0D7D6D5D4D3D2D1D0XXR/WIDX6T0048-02Figure25.WriteOperationTiming

SINGLEREGISTERREADOPERATION

Readoperationsusethe16-bitcontrolwordformatshowninFigure24.Forreadoperations,theR/Wbitissetto1.Readoperationsignoretheindexbits,IDX[6:0],ofthecontroldataword.Instead,theREG[6:0]bitsincontrolregister11areusedtosettheindexoftheregisterthatistobereadduringthereadoperation.BitsIDX[6:0]shouldbesetto00hforreadoperations.

ThedetailsofthereadoperationareshowninFigure26.First,controlregister11mustbewrittenwiththeindexoftheregistertobereadback.Additionally,theINCbitmustbesettologic0inordertodisabletheauto-incrementreadfunction.ThereadcycleistheninitiatedbysettingMLtologic0andsettingtheR/Wbitofthecontroldatawordtologic1,indicatingareadoperation.MDOremainsinahigh-impedancestateuntilthelasteightbitsofthe16-bitreadcycle,whichcorrespondtotheeightdatabitsoftheregisterindexedbytheREG[6:0]bitsofcontrolregister11.ThereadcycleiscompletedwhenMLissetto1,immediatelyaftertheMCclockcyclefortheleastsignificantbit(LSB)oftheindexedcontrolregisterhascompleted.

SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comINC = 1 (Auto-Increment Read)MLMCMDI10000000XXXXXXXXMDOHigh ImpedanceD7D6D5D4D3D2D1D0INDEX “N”MLMCMDIXXXXXXXXXXXXXXXXMDOD7D6D5D4D3D2D1D0D7D6D5D4D3D2D1D0INDEX “N + 1”INDEX “Y”High ImpedanceINC = 0 (Single-Register Read)MLMCMDI10000000XXXXXXXXMDOHigh ImpedanceD7D6D5D4D3D2D1D0INDEX “N”T0075-01NOTES:X=Don’tcare

Y=Lastregistertoberead

Insingle-registerread(INC=0),theindexthatindicatestheregistertobereadinreadoperationcanbesetbyREG[6:0]inregister11.Forexample,settingREG[6:0]=0001001bmeansreadingfromregister9.

Inauto-incrementread(INC=1),theindexREG[6:0]indicatesthefirstregistertoberead.Forexample,settingREG[6:0]=0001001bmeansreadingregistersfrom9toY.Yisdeterminedbythelow-to-hightransitionofMLinserialmodecontrol.

Figure26.ReadOperationTiming

AUTO-INCREMENTREADOPERATION

Theauto-incrementreadfunctionallowsformultipleregisterstobereadsequentially.Theauto-incrementreadfunctionisenabledbysettingtheINCbitofcontrolregister11to1.ThesequencealwaysstartswiththeregisterindexedbytheREG[6:0]bitsincontrolregister11,andendsbytheMLsettingto1afterMCclockcyclefortheLSBofthelastregister.

SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

Figure26showsthetimingoftheauto-incrementreadoperation.Theoperationbeginsbywritingcontrolregister11,settingINCto1,andsettingREG[6:0]tothefirstregistertobereadinthesequence.TheactualreadoperationstartsonthenextHIGH-to-LOWtransitionoftheMLpin.

ThereadcyclestartsbysettingtheR/Wbitofthecontrolwordto1,andsettingalloftheIDX[6:0]bitsto0.AllsubsequentbitsinputonMDIareignoredwhileMLissetto0.Forthefirsteightclocksofthereadcycle,MDOissettothehigh-impedancestate.Thisisfollowedbyasequenceof8-bitwords,eachcorrespondingtothedatacontainedincontrolregistersNthroughY,whereNisdefinedbytheREG[6:0]bitsincontrolregister11,andwhereYisthelastregistertoberead.ThereadcycleiscompletedwhenMLissetto1,immediatelyaftertheMCclockcyclefortheLSBofthelastregisterhascompleted.IfMLisheldlowandtheMCclockcontinuesbeyondthelastphysicalregister(register19),thereadoperationreturnstocontrolregister1andsubsequentcontrolregisters,continuinguntilMLissetto1.

CONTROLINTERFACETIMINGREQUIREMENTS

Figure27showsadetailedtimingdiagramfortheserialcontrolinterface.Payspecialattentiontothesetupandholdtimes,aswellast(MLS)andt(MLH),whichdefineminimumdelaysbetweentheedgesoftheMLandMCclocks.Thesetimingparametersarecriticalforpropercontrol-portoperation.

t(MHH)MLt(MLS)t(MCH)MCt(MCL)t(MLH)1.4 V1.4 Vt(MCY)MDIt(MDS)t(MDH)LSB1.4 Vt(MOS)MDOLSB50% of VDDT0013-05SYMBOLt(MCY)t(MCL)t(MCH)t(MHH)t(MLS)t(MLH)t(MDH)t(MDS)t(MOS)(1)

MCpulsecycletimeMClow-leveltimeMChigh-leveltimeMLhigh-leveltimeMLfallingedgetoMCrisingedgeMLholdtime(1)MDIholdtimeMDLsetuptimeMCfallingedgetoMDOstableMCrisingedgeforLSBtoMLrisingedge

MIN100505030020201520MAXUNITnsnsnsnsnsnsnsns30nsFigure27.ControlInterfaceTiming

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comMODECONTROLREGISTERS

User-ProgrammableModeControls

ThePCM1609Aincludesanumberofuser-programmablefunctionsthatareaccessedviacontrolregisters.Theregistersareprogrammedusingtheserialcontrolinterfacethatispreviouslydiscussedinthisdatasheet.Table3liststheavailablemodecontrolfunctions,alongwiththeirresetdefaultconditionsandassociatedregisterindex.Table3.User-ProgrammableModeControls

FUNCTION

Digitalattenuationcontrol,

0dBto–63dBin0.5-dBstepsSoftmutecontrol

DAC1–DAC8operationcontrolAudiodataformatcontrolDigitalfilterrolloffcontrolSCKOfrequencyselectionSCKOoutputenable

De-emphasisall-channelfunctioncontrolDe-emphasisall-channelsamplerateselectionOutputphaseselectZero-flagpolarityselectRead-registerindexcontrolReadauto-incrementcontrolGeneral-purposeoutputenable

General-purposeoutputbits(GPO1–GPO6)Oversamplingratecontrol

RESETDEFAULT

CONTROLREGISTER1through6,16,17

7,188,199999101010101111121212

BIT(S)LABELAT1[7:0],AT2[7:0],AT3[7:0],AT4[7:0],AT5[7:0],AT6[7:0],AT7[7:0],AT8[7:0]

MUT[8:1]DAC[8:1]FMT[2:0]FLTCLKDCLKEDMCDMF[1:0]DREVZREVREG[6:0]INCGPOEGPO[6:1]OVER

0dB,noattenuationMutedisabledDAC1–DAC8enabled24-bitstandardformatSharprolloffFullrate(=fSCKI)SCKOenabled

De-emphasis,allchannelsdisabled44.1kHzNormalphaseHigh

REG[6:0]=01hAuto-incrementdisabledZero-flagenabledDisabled×

20SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

ReservedRegisters

Registers00hand0Dhthrough0Fharereservedforfactoryuse.Toensureproperoperation,theusershouldnotwritetoorreadfromtheseregisters.RegisterMap

ThemodecontrolregistermapisshowninTable4.EachregisterincludesanR/Wbitthatdetermineswhetheraregisterread(R/W=1)orwrite(R/W=0)operationisperformed.Eachregisteralsoincludesanindex(oraddress)indicatedbytheIDX[6:0]bits.

Table4.ModeControlRegisterMap

IDX(B14–B8)01h02h03h04h05h06h07h08h09h0Ah0Bh0Ch10h11h12h13h

REG123456710111216171819

B15R/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WB14IDX6IDX6IDX6IDX6IDX6IDX6IDX6IDX6IDX6IDX6IDX6IDX6IDX6IDX6IDX6IDX6

B13IDX5IDX5IDX5IDX5IDX5IDX5IDX5IDX5IDX5IDX5IDX5IDX5IDX5IDX5IDX5IDX5

B12IDX4IDX4IDX4IDX4IDX4IDX4IDX4IDX4IDX4IDX4IDX4IDX4IDX4IDX4IDX4IDX4

B11IDX3IDX3IDX3IDX3IDX3IDX3IDX3IDX3IDX3IDX3IDX3IDX3IDX3IDX3IDX3IDX3

B10IDX2IDX2IDX2IDX2IDX2IDX2IDX2IDX2IDX2IDX2IDX2IDX2IDX2IDX2IDX2IDX2

B9IDX1IDX1IDX1IDX1IDX1IDX1IDX1IDX1IDX1IDX1IDX1IDX1IDX1IDX1IDX1IDX1

B8IDX0IDX0IDX0IDX0IDX0IDX0IDX0IDX0IDX0IDX0IDX0IDX0IDX0IDX0IDX0IDX0

B7AT17AT27AT37AT47AT57AT67RSV(1)RSV

(1)

B6AT16AT26AT36AT46AT56AT66RSV(1)RSV

(1)

B5AT15AT25AT35AT45AT55AT65MUT6DAC6FLTDREVREG5GPO6AT75AT85RSV

(1)

B4AT14AT24AT34AT44ATATMUT5DAC5CLKDDMF1REG4GPO5AT74AT84RSV

(1)

B3AT13AT23AT33AT43AT53AT63MUT4DAC4CLKEDMF0REG3GPO4AT73AT83RSV

(1)

B2AT12AT22AT32AT42AT52AT62MUT3DAC3FMT2DMCREG2GPO3AT72AT82RSV

(1)

B1AT11AT21AT31AT41AT51AT61MUT2DAC2FMT1DMCREG1GPO2AT71AT81MUT8DAC8

B0AT10AT20AT30AT40AT50AT60MUT1DAC1FMT0DMCREG0GPO1AT70AT80MUT7DAC7

RSV(1)RSV(1)INCOVERAT77AT87RSV

(1)

RSV(1)ZREVREG6GPOEAT76AT86RSV

(1)

RSV(1)RSV(1)RSV(1)RSV(1)RSV(1)RSV(1)

(1)Reservedfortestoperation.Itshouldbesetto0duringnormaloperation.

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comREGISTERDEFINITIONS

B15

REGISTER1REGISTER2REGISTER3REGISTER4REGISTER5REGISTER6REGISTER16REGISTER17

R/WR/WR/WR/WR/WR/WR/WR/WB14

B13

B12

B11

B10

B7AT17AT27AT37AT47AT57AT67AT77AT87

B6AT16AT26AT36AT46AT56AT66AT76AT86

B5AT15AT25AT35AT45AT55AT65AT75AT85

B4AT14AT24AT34AT44ATATAT74AT84

B3AT13AT23AT33AT43AT53AT63AT73AT83

B2AT12AT22AT32AT42AT52AT62AT72AT82

B1AT11AT21AT31AT41AT51AT61AT71AT81

B0AT10AT20AT30AT40AT50AT60AT70AT80

IDX6IDX5IDX4IDX3IDX2IDX1IDX0IDX6IDX5IDX4IDX3IDX2IDX1IDX0IDX6IDX5IDX4IDX3IDX2IDX1IDX0IDX6IDX5IDX4IDX3IDX2IDX1IDX0IDX6IDX5IDX4IDX3IDX2IDX1IDX0IDX6IDX5IDX4IDX3IDX2IDX1IDX0IDX6IDX5IDX4IDX3IDX2IDX1IDX0IDX6IDX5IDX4IDX3IDX2IDX1IDX0

R/W–Read/WriteModeSelect

WhenR/W=0,awriteoperationisperformed.WhenR/W=1,areadoperationisperformed.Defaultvalue:0

ATx[7:0]–DigitalAttenuationLevelSetting

Wherex=1through8,correspondingtotheDACoutputVOUTx.Thesebitsareread/write.Defaultvalue:11111111b

EachDACoutput,VOUT1throughVOUT8,includesadigitalattenuatorfunction.Theattenuationlevelcanbesetfrom0dBto–63dBin0.5-dBsteps.Changesinattenuationlevelsaremadebyincrementingordecrementingbyonestep(0.5dB)forevery8/fStimeintervaluntiltheprogrammedattenuatorsettingisreached.Alternatively,theattenuationlevelcanbesettoinfiniteattenuation,ormute.Theattenuationleveliscalculatedusingthefollowingformula:

Attenuationlevel(dB)=0.5(ATx[7:0]DEC–255)WhereATx[7:0]DEC=0through255.

ForATx[7:0]DEC=0through128,theattenuatorissettoinfiniteattenuation.Thefollowingtableshowsattenuationlevelsforvarioussettings.

ATx[7:0]11111111b11111110b11111101b

:10000011b10000010b10000001b10000000b

:00000000b

DECIMALVALUE

2552253:131130129128:0

ATTENUATORLEVELSETTING0dB,noattenuation(default)

–0.5dB–1dB:–62dB–62.5dB–63dBMute:Mute

22SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

B15

REGISTER7REGISTER18

R/WR/WB14B13B12B11B10B9B8B7RSVRSV

B6RSVRSV

B5MUT6RSV

B4MUT5RSV

B3MUT4RSV

B2MUT3RSV

B1MUT2MUT8

B0MUT1MUT7

IDX6IDX5IDX4IDX3IDX2IDX1IDX0IDX6IDX5IDX4IDX3IDX2IDX1IDX0

R/W–Read/WriteModeSelect

WhenR/W=0,awriteoperationisperformed.WhenR/W=1,areadoperationisperformed.Defaultvalue:0

MUTx–SoftMuteControl

Wherex=1through8,correspondingtotheDACoutputVOUTx.Thesebitsareread/write.Defaultvalue:0

MUTx=0MUTx=1

Mutedisabled(default)Muteenabled

Themutebits,MUT1throughMUT8,areusedtoenableordisablethesoftmutefunctionforthecorrespondingDACoutputs,VOUT1throughVOUT8.Thesoftmutefunctionisincorporatedintothedigitalattenuators.Whenmuteisdisabled(MUTx=0),theattenuatorandDACoperatenormally.WhenmuteisenabledbysettingMUTx=1,thedigitalattenuatorforthecorrespondingoutputisdecreasedfromthecurrentsettingtotheinfiniteattenuationsetting,oneattenuatorstep(0.5dB)atatime.Thisprovidesaquiet,pop-freemutingoftheDACoutput.Onreturningfromsoftmute,bysettingMUTx=0,theattenuatorisincreasedonestepatatimetothepreviouslyprogrammedattenuationlevel.

B15

REGISTER8REGISTER19

R/WR/WB14

B13

B12

B11

B10

B7RSVRSV

B6RSVRSV

B5DAC6RSV

B4DAC5RSV

B3DAC4RSV

B2DAC3RSV

B1DAC2DAC8

B0DAC1DAC7

IDX6IDX5IDX4IDX3IDX2IDX1IDX0IDX6IDX5IDX4IDX3IDX2IDX1IDX0

R/W–Read/WriteModeSelect

WhenR/W=0,awriteoperationisperformed.WhenR/W=1,areadoperationisperformed.Defaultvalue:0

DACx–DACOperationControl

Wherex=1through8,correspondingtotheDACoutputVOUTx.Thesebitsareread/write.Defaultvalue:0

DACx=0DACx=1

DACoperationenabled(default)DACoperationdisabled

TheDACoperationcontrolsareusedtoenableanddisabletheDACoutputs,VOUT1throughVOUT8.WhenDACx=0,theoutputamplifierinputisconnectedtotheDACoutput.WhenDACx=1,theoutputamplifierinputisswitchedtothedccommon-modevoltage(VCOM),equaltoVCC/2.

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comB15

REGISTER9

R/WB14B13B12B11B10B9B8B7RSV

B6RSV

B5FLT

B4CLKD

B3CLKE

B2FMT2

B1FMT1

B0FMT0

IDX6IDX5IDX4IDX3IDX2IDX1IDX0

R/W–Read/WriteModeSelect

WhenR/W=0,awriteoperationisperformed.WhenR/W=1,areadoperationisperformed.Defaultvalue:0

FLT–DigitalFilterRolloffControlThisbitisread/write.Defaultvalue:0

FLT=0FLT=1

Sharprolloff(default)Slowrolloff

TheFLTbitallowsuserstoselectthedigitalfilterrolloffthatisbestsuitedtotheirapplication.Twofilterrolloffselectionsareavailable:sharporslow.ThefilterresponsesfortheseselectionsareshownintheTypicalPerformanceCurvessectionofthisdatasheet.CLKD–SCKOFrequencySelectionThisbitisread/write.Defaultvalue:0

CLKD=0CLKD=1

Full-rate,fSCKO=fSCKI(default)Half-rate,fSCKO=fSCKI/2

TheCLKDbitisusedtodeterminetheclockfrequencyatthesystemclockoutputpin,SCKO.CLKE–SCKOOutputEnableThisbitisread/write.Defaultvalue:0

CLKE=0CLKE=1

SCKOenabled(default)SCKOdisabled

TheCLKEbitisusedtoenableordisablethesystemclockoutputpin,SCKO.WhenSCKOisenabled,itoutputseitherafull-orhalf-rateclock,basedonthesettingoftheCLKDbit.WhenSCKOisdisabled,itissettoaLOWlevel.

24SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

FMT[2:0]–AudioInterfaceDataFormatThesebitsareread/write.Defaultvalue:000b

FMT[2:0]000001010011100101110111

AudioDataFormatSelection

24-bitstandardformat,right-justifieddata(default)20-bitstandardformat,right-justifieddata18-bitstandardformat,right-justifieddata16-bitstandardformat,right-justifieddataI2Sformat,16bitto24bit

Left-justifiedformat,16bitto24bitReservedReserved

TheFMT[2:0]bitsareusedtoselectthedataformatfortheserialaudiointerface.

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comB15

REGISTER10

R/WB14B13B12B11B10B9B8B7RSV

B6ZREV

B5DREV

B4DMF1

B3DMF0

B2DMC

B1DMC

B0DMC

IDX6IDX5IDX4IDX3IDX2IDX1IDX0

R/W–Read/WriteModeSelect

WhenR/W=0,awriteoperationisperformed.WhenR/W=1,areadoperationisperformed.Defaultvalue:0

ZREV–Zero-FlagPolaritySelectDefaultvalue:0

ZREV=0ZREV=1

Zero-flagpinsHIGHatazerodetect(default)Zero-flagpinsLOWatazerodetect

TheZREVbitallowstheusertoselectthepolarityofzero-flagpins.DREV–OutputPhaseSelectDefaultvalue:0

DREV=0DREV=1

Normaloutput(default)Invertedoutput

TheDREVbitallowstheusertoselectthephaseofanalogoutputsignal.DMF[1:0]–SamplingFrequencySelectionfortheDe-EmphasisFunctionThesebitsareread/write.Defaultvalue:00b

DMF[1:0]00011011

De-EmphasisSampleRateSelection44.1kHz(default)48kHz32kHzReserved

TheDMF[1:0]bitsareusedtoselectthesamplingfrequencyusedforthedigitalde-emphasisfunctionwhenitisenabled.Thede-emphasiscurvesareshownintheTypicalPerformanceCurvessectionofthisdatasheet.Theprecedingtableshowstheavailablesamplingfrequencies.DMC–DigitalDe-Emphasis,All-ChannelFunctionControlThisbitisread/write.Defaultvalue:0

DMC=0DMC=1

De-emphasisdisabledforallchannels(default)De-emphasisenabledforallchannels

TheDMCbitsareusedtoenableordisablethede-emphasisfunctionforallchannels.ThethreeDMCbitsareORedtogether.SettinganyoneDMCbit,anycombinationoftwoDMCbits,orallthreeDMCbitsto1enablesdigitalde-emphasisforallchannels.SettingallthreeDMCbitsto0disablesdigitalde-emphasisforallchannels.

26SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

B15

REGISTER11

R/WB14B13B12B11B10B9B8B7INC

B6REG6

B5REG5

B4REG4

B3REG3

B2REG2

B1REG1

B0REG0

IDX6IDX5IDX4IDX3IDX2IDX1IDX0

R/W–Read/WriteModeSelect

WhenR/W=0,awriteoperationisperformed.WhenR/W=1,areadoperationisperformed.Defaultvalue:0

INC–Auto-IncrementReadControlThisbitisread/write.Defaultvalue:0

INC=0INC=1

Auto-incrementreaddisabled(default)Auto-incrementreadenabled

TheINCbitisusedtoenableordisabletheauto-incrementreadfeatureoftheserialcontrolinterface.SeetheSerialControlInterfacesectionofthisdatasheetfordetailsregardingauto-incrementreadoperation.REG[6:0]–ReadRegisterIndexThesebitsareread/write.Defaultvalue:01h

TheREG[6:0]bitsareusedtosettheindexoftheregistertobereadwhenperformingthesingle-registerreadoperation.Inthecaseofanauto-incrementreadoperation,theREG[6:0]bitsindicatetheindexofthelastregistertobereadintheauto-incrementreadsequence.Forexample,ifregisters1through6aretobereadduringanauto-incrementreadoperation,theREG[6:0]bitswouldbesetto06h.SeetheSerialControlInterfacesectionofthisdatasheetfordetailsregardingthesingle-registerandauto-incrementreadoperations.

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comB15

REGISTER12

R/WB14B13B12B11B10B9B8B7B6B5B4B3B2B1B0

IDX6IDX5IDX4IDX3IDX2IDX1IDX0OVERGPOEGPO6GPO5GPO4GPO3GPO2GPO1

R/W–Read/WriteModeSelect

WhenR/W=0,awriteoperationisperformed.WhenR/W=1,areadoperationisperformed.Defaultvalue:0

OVER–OversamplingRateControlThisbitisread/write.Defaultvalue:0

Systemclockrate=256fS,384fS,512fS,or768fS:

OVER=0OVER=1

×oversampling(default)128×oversampling

Systemclockrate=128fSor192fS:

OVER=0OVER=1

32×oversampling(default)×oversampling

TheOVERbitisusedtocontroltheoversamplingrateofthedelta-sigmaDACs.TheOVER=1settingisrecommendedwhentheoversamplingrateis192kHz(systemclockrateis128fSor192fS).GPOE–General-PurposeOutputEnableThisbitisread/write.Defaultvalue:0

GPOE=0GPOE=1

General-purposeoutputsdisabled(default)

Pinsdefaulttozero-flagfunction(ZERO1throughZERO6).

General-purposeoutputsenabled

DatawrittentoGPO1throughGPO6appearsatthecorrespondingpins.

GPOx–General-PurposeLogicOutput

Where:x=1through6,correspondingpinsGPO1throughGPO6.Thesebitsareread/write.Defaultvalue:0

GPOx=0GPOx=1

SetGPOxto0(default)SetGPOxto1

Thegeneral-purposeoutputpins,GPO1throughGPO6,areenabledbysettingGPOE=1.Thesepinsareusedasgeneral-purposeoutputsforcontrollinguser-definedlogicfunctions.Whengeneral-purposeoutputsaredisabled(GPOE=0),theydefaulttothezero-flagfunction,ZERO1throughZERO6.

28SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

ANALOGOUTPUTS

ThePCM1609Aincludeseightindependentoutputchannels,VOUT1throughVOUT8.Theseareunbalancedoutputs,eachcapableofdriving3.1Vp-ptypicalintoa5-k?acloadwithVCC=5V.TheinternaloutputamplifiersforVOUT1throughVOUT8aredcbiasedtothecommon-mode(orbipolarzero)voltage,equaltoVCC/2.TheoutputamplifiersincludeanRCcontinuous-timefilter,whichhelpstoreducetheout-of-bandnoiseenergypresentattheDACoutputsduetothenoise-shapingcharacteristicsofthePCM1609Adelta-sigmaDACs.ThefrequencyresponseofthisfilterisshowninFigure28.Byitself,thisfilterisnotenoughtoattenuatetheout-of-bandnoisetoanacceptablelevelformostapplications.Anexternallow-passfilterisrequiredtoprovidesufficientout-of-bandnoiserejection.FurtherdiscussionofDACpost-filtercircuitsisprovidedintheApplicationInformationsectionofthisdatasheet.

200?20Level ? dB?40?60?80?1001101001k10k100k1M10MG019f ? Frequency ? HzFigure28.Output-FilterFrequencyResponse

VCOMOUTPUT

Oneunbufferedcommon-modevoltageoutputpin,VCOM(pin15),isbroughtoutfordecouplingpurposes.ThispinisnominallybiasedtoadcvoltagelevelequaltoVCC/2.Ifthispinistobeusedtobiasexternalcircuitry,avoltagefollowerisrequiredforbufferingpurposes.Figure29showsanexampleofusingtheVCOMpinforexternalbiasingapplications.

PCM1609A4VCOM15+3–OPA3371VBIAS++VCC210 μFS00-04Figure29.BiasingExternalCircuitsUsingVCOMPin

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comZEROFLAG

ZERO-DETECTCONDITION

Zerodetectionforeachoutputchannelisindependentfromtheothers.Ifthedataforagivenchannelremainsata0levelfor1024sampleperiods(orLRCKclockperiods),azero-detectconditionexistsforthatchannel.

ZEROOUTPUTFLAGS

Giventhatazero-detectconditionexistsforoneormorechannels,thezero-flagpinsforthosechannelsaresettoalogic-1state.Eachchannel,ZERO1throughZERO6(pins1through6),ZERO7(pin30),andZERO8(pin32),haszero-flagpins.Inaddition,alleightzeroflagsarelogicallyANDedtogether,andtheresultisprovidedattheZEROApin(pin48),whichissettoalogic-1statewhenallchannelsindicateazero-detectcondition.Thezero-flagpinscanbeusedtooperateexternalmutecircuits.ZERO1throughZERO6canbeusedasstatusindicatorsforamicrocontroller,audiosignalprocessor,orotherdigitallycontrolledfunction.

Theactivepolarityofthezero-flagoutputcanbeinvertedbysettingto1theZREVbitofcontrolregister10.Theresetdefaultisactive-highoutput,orZREV=0.

30SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

APPLICATIONINFORMATION

CONNECTIONDIAGRAMS

Abasicconnectiondiagramwiththenecessarypower-supplybypassinganddecouplingcomponentsisshowninFigure30.TIrecommendsusingthecomponentvaluesshowninFigure30foralldesigns.

MLPLL170xSCKO3MCMDMicrocontrollerZERO7, 8DATA4+5V Power Supply10 μFRegulator36ML35MC34MDI33MDO32ZERO831DATA430ZERO729NC28VCC127AGND126VCC225AGND2RST37RST38SCKI39SCKOVCC324AGND323VCC422AGND421VOUT820PCM1609AAGND619VCC518AGND517VOUT716VCOMZERO1/GPO1ZERO2/GPO2ZERO3/GPO3ZERO4/GPO4ZERO5/GPO5ZERO6/GPO6BCKLRCK40BCK41LRCK42TEST43VDDLPFVOUT810 μFDATA1DATA2DATA3ZEROA44DGND45DATA146DATA247DATA348ZEROA10 μFLPFVOUT715LPFLPFVOUT1VOUT2VOUT114VOUT213VOUT6VOUT5VOUT4VOUT3NCNC1234567101112LPFLPFLPFZERO1?6LPFVOUT3VOUT4VOUT5VOUT6S0090-03Figure30.BasicConnectionDiagram

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comDown Mix+5V Analog+3.3V for VDDREG1117+3.3V10 μFOutputLow-PassFilters(4)10 μF10 μF10 μF10 μF10 μF10 μF+10 μF10 μF10 μF2423222120191817161514AGND3AGND4AGND6AGND5VCC3VCC4VOUT8VCC5VOUT7VOUT10.1 μFVOUT2VCOM13252627ANALOG SECTION282930Zero-FlagPCM1609A3132Zero-Flag33343536ZEROADATA1DATA2373839404142434447DATA3DGNDSCKOLRCKTESTSCKIBCKRSTVDD481MLZERO1/GPO12MCZERO2/GPO23MDIZERO3/GPO34MDOZERO4/GPO45ZERO8ZERO5/GPO56DATA4ZERO6/GPO67ZERO7NC8NCNC9VCC1VOUT610AGND1VOUT511VCC2VOUT412AGND2VOUT3+3.3Vfor VDDRS(3)RSRSC11+10 μFRSRSRSDIGITAL SECTIONBufferSCKO3(2)(1)(2)(3)(4)

SerialcontrolandresetfunctionscanbeprovidedbyDSP/decoderGPIOpins.Actualclockoutputusedisdeterminedbytheapplication.RS=22?to100?

SeetheApplicationInformationsectionofthisdatasheetformoreinformation

Figure31.TypicalApplicationDiagram

32SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

27MHzMaster ClockAudio DSPorDecoderPLL170xμC/μP(1)XT1Copyright?2005–2008,TexasInstrumentsIncorporated

RSZero Flag orGeneral?PurposeOutputsfor Mute Circuits,Microcontroller, orDSP/DecoderC100.1 μFS0091-03RL+SUB+CTR+RSRF+LS++LF+++Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

AtypicalapplicationdiagramisshowninFigure31.TheREG1117-3.3fromTIisusedtogenerate3.3VforVDDfromthe5-Vanalogpowersupply.ThePLL170xfromTIisusedtogeneratethesystemclockinputatSCKI,aswellasgeneratingtheclockfortheaudiosignalprocessor.

Seriesresistors(22?to100?)arerecommendedforSCKI,LRCK,BCK,DATA1,DATA2,DATA3,andDATA4.TheseriesresistorcombineswiththestrayPCBanddeviceinputcapacitancetoformalow-passfilter,whichremoveshigh-frequencynoisefromthedigitalsignal,thusreducinghigh-frequencyemission.

POWERSUPPLIESANDGROUNDING

ThePCM1609Arequiresa5-Vanalogsupplyanda3.3-Vdigitalsupply.The5-VsupplyisusedtopowertheDACanalogandoutputfiltercircuitry,whereasthe3.3-Vsupplyisusedtopowerthedigitalfilterandserialinterfacecircuitry.Forbestperformance,the3.3-Vsupplyshouldbederivedfromthe5-Vsupplyusingalinearregulator(seeFigure31).Twocapacitorsarerequiredforsupplybypassing(seeFigure30).ThesecapacitorsshouldbelocatedascloseaspossibletothePCM1609Apackage.The10-μFcapacitorsshouldbetantalumoraluminumelectrolytic,whereasthe0.1-μFcapacitorsareceramic(X7Rtypeisrecommendedforsurface-mountapplications).

DACOUTPUTFILTERCIRCUITS

Delta-sigmaDACsusenoise-shapingtechniquestoimprovein-bandsignal-to-noiseratio(SNR)performanceattheexpenseofgeneratingincreasedout-of-bandnoiseabovetheNyquistfrequency,orfS/2.Theout-of-bandnoisemustbelow-passfilteredinordertoprovideoptimalconverterperformance.Thisisaccomplishedbyacombinationofon-chipandexternallow-passfiltering.

Figure32andFigure33showtherecommendedexternallow-passactivefiltercircuitsfordual-andsingle-supplyapplications.Thesecircuitsaresecond-orderButterworthfiltersusingthemultiplefeedback(MFB)circuitarrangement,whichreducessensitivitytopassivecomponentvariationsoverfrequencyandtemperature.FormoreinformationregardingMFBactivefilterdesign,seetheFilterPro?MFBandSallen-KeyLow-PassFilterDesignProgramapplicationreport(literaturenumberSBFA001)availablefromtheTIwebsite(www.ti.com).BecausetheoverallsystemperformanceisdefinedbythequalityoftheDACsandtheirassociatedanalogoutputcircuitry,high-qualityaudiooperationalamplifiersarerecommendedfortheactivefilters.TheOPA2134andOPA2353dualoperationalamplifiersfromTIareshowninFigure32andFigure33,andarerecommendedforusewiththePCM1609A.

R2R1VINC2AV+*R2R1R3C123–OPA21341R4VOUT+S0053-02Figure32.Dual-SupplyFilterCircuit

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comAV+*R2R1R2R1VINPCM1609AC2R3C123–OPA21341R4VOUT+VCOM+C310 μF+OPA337?To AdditionalLow-PassFilter CircuitsS0056-04Figure33.Single-SupplyFilterCircuit

PCBLAYOUTGUIDELINES

AtypicalPCBfloorplanforthePCM1609AisshowninFigure34.Agroundplaneisrecommended,withtheanaloganddigitalsectionsbeingisolatedfromoneanotherusingasplitorcutinthecircuitboard.ThePCM1609AshouldbeorientedwiththedigitalI/Opinsfacingthegroundplanesplit/cuttoallowforshort,directconnectionstothedigitalaudiointerfaceandcontrolsignalsoriginatingfromthedigitalsectionoftheboard.

Digital Power+VDDGNDAnalog PowerAGND+5VA+VS?VSREGVCCDigital LogicandAudioProcessorVDDDGNDPCM1609AAGNDAnalogGroundOutputCircuitsDigitalGroundDigital SectionAnalog SectionReturn Path for Digital SignalsB0031-05Figure34.RecommendedPCBLayout

34SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

Separatepowersuppliesarerecommendedforthedigitalandanalogsectionsoftheboard.ThispreventstheswitchingnoisepresentonthedigitalsupplyfromcontaminatingtheanalogpowersupplyanddegradingthedynamicperformanceoftheDACs.Incaseswhereacommon5-Vsupplymustbeusedfortheanaloganddigitalsections,aninductance(RFchoke,ferritebead)shouldbeplacedbetweentheanaloganddigital5-Vsupplyconnectionstoavoidcouplingofthedigitalswitchingnoiseintotheanalogcircuitry.Figure35showstherecommendedapproachforsingle-supplyapplications.

RF Choke or Ferrite BeadPower Supplies+5VAGND+VS?VSREGVDDDigital LogicandAudioProcessorVDDVCCDGNDPCM1609AAGNDOutputCircuitsDigital SectionAnalog SectionCommonGroundB0032-05Figure35.Single-SupplyPCBLayout

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comTHEORYOFOPERATION

TheDACsectionofthePCM1609Aisbasedonamultibitdelta-sigmaarchitecture.Thisarchitectureusesafourth-ordernoiseshaperandan8-levelamplitudequantizer,followedbyananaloglow-passfilter.Ablockdiagramofthedelta-sigmamodulatorisshowninFigure36.Thisarchitecturehastheadvantageofstabilityandimprovedjittertolerance,whencomparedtotraditional1-bit(2-level)delta-sigmadesigns.

?+IN8 fS++?Z–1++Z–1++Z–1++Z–1+8-Level QuantizerOUT fS+++B0008-03Figure36.Eight-LevelDelta-SigmaModulator

Thecombinedoversamplingrateofthedigitalinterpolationfilterandthedelta-sigmamodulatoris32fS,fS,or128fS.Thetotaloversamplingrateisdeterminedbythedesiredsamplingfrequency.IffS≤96kHz,theOVERbitinregister12canbesettoanoversamplingrateoffSor128fS.IffS>96kHz,theOVERbitcanbeusedtosettheoversamplingrateto32fSorfS.Figure37showstheout-of-bandquantizationnoiseplotsforboththe×and128×oversamplingscenarios.Noticethatthe128×oversamplingplotshowssignificantlyimprovedout-of-bandnoiseperformance,allowingforasimplifiedlow-passfiltertobeusedattheoutputoftheDAC.

36SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

QUANTIZATIONNOISESPECTRUM

(×OVERSAMPLING)

0?20?400?20?40QUANTIZATIONNOISESPECTRUM

(128×OVERSAMPLING)

Amplitude ? dB?80?100?120?140?160?180012345678G021Amplitude ? dB?60?60?80?100?120?140?160?180012345678G022Frequency [fS]Frequency [fS]Figure37.QuantizationNoiseSpectrum

Figure38illustratesthesimulatedjittersensitivityofthePCM1609A.Toachievebestperformance,thesystemclockjittershouldbelessthan300ps.ThisiseasilyachievedusingaqualityclockgenerationIC,suchasthePLL170xfromTI.

JITTERDEPENDENCE(×OVERSAMPLING)

125120Dynamic Range ? dB11511010510095900100200300Jitter ? ps400500600G020Figure38.JitterSensitivity

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609ASLES145B–AUGUST2005–REVISEDMARCH2008

www.ti.comKEYPERFORMANCEPARAMETERSANDMEASUREMENT

ThissectionprovidesinformationonhowtomeasurekeydynamicperformanceparametersforthePCM1609A.Inallcases,aSystemTwo?CascadeaudiomeasurementsystembyAudioPrecision?orequivalentisusedtoperformthetesting.

TOTALHARMONICDISTORTION+NOISE(THD+N)

THD+NisasignificantfeatureofmeritforaudioDACs,becauseittakesintoaccountbothharmonicdistortionandallnoisesourceswithinaspecifiedmeasurementbandwidth.ThetruermsvalueofthedistortionandnoiseisreferredtoasTHD+N.ThetestsetupforTHD+NmeasurementsisshowninFigure39.Evaluation BoardDEM-DAI1609AS/PDIFReceiver2nd-OrderLow-PassFilterf–3 dB = kHzPCM1609ADigitalGeneratorS/PDIFOutput100% Full-Scale24-Bit, 1-kHzSine WaveAnalyzerandDisplayrms ModeBand LimitNotch FilterHPF = 22 Hz(1)fC = 1 kHz(1)LPF = 30 kHzOption = 20-kHz Apogee Filter(2)B0062-03(1)(2)

ThereislittledifferenceinmeasuredTHD+Nwhenusingthevarioussettingsforthesefilters.RequiredforTHD+Ntest

Figure39.TestSetupforTHD+NMeasurements

ForPCM1609ADACs,THD+Nismeasuredwithafull-scale1-kHzdigitalsinewaveastheteststimulusattheinputoftheDAC.Thedigitalgeneratorissettoa24-bitaudiowordlengthandasamplingfrequencyof44.1kHzor96kHz.ThedigitalgeneratoroutputistakenfromtheunbalancedS/PDIFconnectorofthemeasurementsystem.TheS/PDIFdataistransmittedviacoaxialcabletothedigitalaudioreceiverontheDEM-DAI1602demonstrationboard.Thereceiveristhenconfiguredtooutput24-bitdataineitherI2Sorleft-justifieddataformat.TheDACaudiointerfaceformatisprogrammedtomatchthereceiveroutputformat.TheanalogoutputisthentakenfromtheDACpostfilterandconnectedtotheanaloganalyzerinputofthemeasurementsystem.Theanaloginputisbandlimited,usingfiltersresidentintheanalyzer.TheresultingTHD+Nismeasuredbytheanalyzeranddisplayedbythemeasurementsystem.

DYNAMICRANGE

DynamicrangeisspecifiedasA-weightedTHD+Nmeasuredwitha–60-dBFS1-kHzdigitalsine-wavestimulusattheinputoftheDAC.ThismeasurementisdesignedtogiveagoodindicationofhowtheDACperforms,givenalow-levelinputsignal.

ThemeasurementsetupforthedynamicrangemeasurementisshowninFigure40,andissimilartotheTHD+Ntestsetupdiscussedpreviously.Thedifferencesincludetheband-limitfilterselection,theadditionalA-weightingfilter,andthe–60-dBFSinputlevel.

38SubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

Not Recommended For New Designs

PCM1609Awww.ti.comSLES145B–AUGUST2005–REVISEDMARCH2008

Evaluation BoardDEM-DAI1609AS/PDIFReceiver2nd-OrderLow-PassFilterf–3 dB = kHzPCM1609A(1)S/PDIFOutputDigitalGenerator0% Full-Scale,Dither Off (SNR)–60 dB FS,1-kHz Sine Wave(Dynamic Range)AnalyzerandDisplayrms ModeA-WeightFilter(1)Band LimitNotch FilterHPF = 22 HzfC = 1 kHzLPF = 22 kHzOption = A-Weighting(2)B0063-03(1)(2)

Infinite-zero-detectmutedisabled

ResultswithoutA-weightingareapproximately3dBworse.

Figure40.TestSetupforDynamicRangeandSNRMeasurements

IDLE-CHANNELSIGNAL-TO-NOISERATIO(SNR)

TheSNRtestprovidesameasureofthenoiseoftheDAC.TheinputtotheDACisinall-0sdata,andtheDACinfinite-zero-detectmutefunctionmustbedisabled(defaultconditionatpowerupforthePCM1609A).Thisensuresthatthedelta-sigmamodulatoroutputisconnectedtotheoutputamplifiercircuitsothatidletones(ifpresent)canbeobservedattheoutput.Theditherfunctionofthedigitalsignalgeneratormustalsobedisabledtoensureanall-0sdatastreamattheinputoftheDAC.

ThemeasurementsetupforSNRisidenticaltothatusedfordynamicrange,withtheexceptionoftheinputsignallevel(seethenotesinFigure40).Copyright?2005–2008,TexasInstrumentsIncorporatedSubmitDocumentationFeedback

ProductFolderLink(s):PCM1609A

PACKAGE OPTION ADDENDUM

www.ti.com

24-Apr-2015

PACKAGING INFORMATION

Orderable DevicePCM1609APTPCM1609APTR (1)

Status(1)Package TypePackagePinsPackageDrawingQtyLQFPLQFPPTPT48482501000Eco Plan(2)Lead/Ball Finish(6)MSL Peak Temp(3)Op Temp (°C)-25 to 85-25 to 85Device Marking(4/5)SamplesNRNDNRNDGreen (RoHS& no Sb/Br)Green (RoHS& no Sb/Br)CU NIPDAUCU NIPDAULevel-1-260C-UNLIMLevel-1-260C-UNLIMPCM1609APCM1609A The marketing status values are defined as follows:ACTIVE: Product device recommended for new designs.

LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.

NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.PREVIEW: Device has been announced but is not in production. Samples may or may not be available.OBSOLETE: TI has discontinued the production of the device.

(2)

Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availabilityinformation and additional product content details.

TBD: The Pb-Free/Green conversion plan has not been defined.

Pb-Free (RoHS): TI's terms \"Lead-Free\" or \"Pb-Free\" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement thatlead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.

Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used betweenthe die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.

Green (RoHS & no Sb/Br): TI defines \"Green\" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weightin homogeneous material)

(3)

MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.

(4)

(5)

Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a \"~\" will appear on a device. If a line is indented then it is a continuationof the previous line and the two combined represent the entire Device Marking for that device.

(6)

Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finishvalue exceeds the maximum column width.

Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on informationprovided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken andcontinues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.

Addendum-Page 1

PACKAGE OPTION ADDENDUM

www.ti.com

24-Apr-2015

In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.

Addendum-Page 2

PACKAGEMATERIALSINFORMATION

www.ti.com

14-Jul-2012

TAPEANDREELINFORMATION

*Alldimensionsarenominal

Device

PackagePackagePinsTypeDrawingLQFP

SPQ

ReelReelA0DiameterWidth(mm)(mm)W1(mm)330.0

16.4

9.6

B0(mm)9.6

K0(mm)1.9

P1(mm)12.0

WPin1(mm)Quadrant16.0

PCM1609APTR1000

PackMaterials-Page1

PACKAGEMATERIALSINFORMATION

www.ti.com

14-Jul-2012

*Alldimensionsarenominal

DevicePCM1609APTR

PackageType

LQFP

PackageDrawing

Pins48

SPQ1000

Length(mm)

367.0

Width(mm)367.0

Height(mm)

38.0

PackMaterials-Page2

MTQF003A – OCTOBER 1994 – REVISED DECEMBER 1996 MECHANICAL DATA PT (S-PQFP-G48) 0,270,173625PLASTIC QUAD FLATPACK0,500,08M372448130,13 NOM15,50 TYP7,20SQ6,809,20SQ8,801,451,350,05 MINGage Plane0,250°–7°12Seating Plane1,60 MAX0,100,750,4040052/C 11/96NOTES:A.B.C.D.All linear dimensions are in millimeters.This drawing is subject to change without notice.Falls within JEDEC MS-026This may also be a thermally enhanced plastic package with leads conected to the die pads.POST OFFICE BOX 655303 DALLAS, TEXAS 75265?1IMPORTANTNOTICE

TexasInstrumentsIncorporatedanditssubsidiaries(TI)reservetherighttomakecorrections,enhancements,improvementsandotherchangestoitssemiconductorproductsandservicesperJESD46,latestissue,andtodiscontinueanyproductorserviceperJESD48,latestissue.Buyersshouldobtainthelatestrelevantinformationbeforeplacingordersandshouldverifythatsuchinformationiscurrentandcomplete.Allsemiconductorproducts(alsoreferredtohereinas“components”)aresoldsubjecttoTI’stermsandconditionsofsalesuppliedatthetimeoforderacknowledgment.

TIwarrantsperformanceofitscomponentstothespecificationsapplicableatthetimeofsale,inaccordancewiththewarrantyinTI’stermsandconditionsofsaleofsemiconductorproducts.TestingandotherqualitycontroltechniquesareusedtotheextentTIdeemsnecessarytosupportthiswarranty.Exceptwheremandatedbyapplicablelaw,testingofallparametersofeachcomponentisnotnecessarilyperformed.

TIassumesnoliabilityforapplicationsassistanceorthedesignofBuyers’products.BuyersareresponsiblefortheirproductsandapplicationsusingTIcomponents.TominimizetherisksassociatedwithBuyers’productsandapplications,Buyersshouldprovideadequatedesignandoperatingsafeguards.

TIdoesnotwarrantorrepresentthatanylicense,eitherexpressorimplied,isgrantedunderanypatentright,copyright,maskworkright,orotherintellectualpropertyrightrelatingtoanycombination,machine,orprocessinwhichTIcomponentsorservicesareused.InformationpublishedbyTIregardingthird-partyproductsorservicesdoesnotconstitutealicensetousesuchproductsorservicesorawarrantyorendorsementthereof.Useofsuchinformationmayrequirealicensefromathirdpartyunderthepatentsorotherintellectualpropertyofthethirdparty,oralicensefromTIunderthepatentsorotherintellectualpropertyofTI.

ReproductionofsignificantportionsofTIinformationinTIdatabooksordatasheetsispermissibleonlyifreproductioniswithoutalterationandisaccompaniedbyallassociatedwarranties,conditions,limitations,andnotices.TIisnotresponsibleorliableforsuchaltereddocumentation.Informationofthirdpartiesmaybesubjecttoadditionalrestrictions.

ResaleofTIcomponentsorserviceswithstatementsdifferentfromorbeyondtheparametersstatedbyTIforthatcomponentorservicevoidsallexpressandanyimpliedwarrantiesfortheassociatedTIcomponentorserviceandisanunfairanddeceptivebusinesspractice.TIisnotresponsibleorliableforanysuchstatements.

Buyeracknowledgesandagreesthatitissolelyresponsibleforcompliancewithalllegal,regulatoryandsafety-relatedrequirements

concerningitsproducts,andanyuseofTIcomponentsinitsapplications,notwithstandinganyapplications-relatedinformationorsupportthatmaybeprovidedbyTI.Buyerrepresentsandagreesthatithasallthenecessaryexpertisetocreateandimplementsafeguardswhichanticipatedangerousconsequencesoffailures,monitorfailuresandtheirconsequences,lessenthelikelihoodoffailuresthatmightcauseharmandtakeappropriateremedialactions.BuyerwillfullyindemnifyTIanditsrepresentativesagainstanydamagesarisingoutoftheuseofanyTIcomponentsinsafety-criticalapplications.

Insomecases,TIcomponentsmaybepromotedspecificallytofacilitatesafety-relatedapplications.Withsuchcomponents,TI’sgoalistohelpenablecustomerstodesignandcreatetheirownend-productsolutionsthatmeetapplicablefunctionalsafetystandardsandrequirements.Nonetheless,suchcomponentsaresubjecttotheseterms.

NoTIcomponentsareauthorizedforuseinFDAClassIII(orsimilarlife-criticalmedicalequipment)unlessauthorizedofficersofthepartieshaveexecutedaspecialagreementspecificallygoverningsuchuse.

OnlythoseTIcomponentswhichTIhasspecificallydesignatedasmilitarygradeor“enhancedplastic”aredesignedandintendedforuseinmilitary/aerospaceapplicationsorenvironments.BuyeracknowledgesandagreesthatanymilitaryoraerospaceuseofTIcomponentswhichhavenotbeensodesignatedissolelyattheBuyer'srisk,andthatBuyerissolelyresponsibleforcompliancewithalllegalandregulatoryrequirementsinconnectionwithsuchuse.

TIhasspecificallydesignatedcertaincomponentsasmeetingISO/TS16949requirements,mainlyforautomotiveuse.Inanycaseofuseofnon-designatedproducts,TIwillnotberesponsibleforanyfailuretomeetISO/TS16949.ProductsAudioAmplifiersDataConvertersDLP?ProductsDSP

ClocksandTimersInterfaceLogicPowerMgmtMicrocontrollersRFID

OMAPApplicationsProcessorsWirelessConnectivity

www.ti.com/audioamplifier.ti.comdataconverter.ti.comwww.dlp.comdsp.ti.comwww.ti.com/clocksinterface.ti.comlogic.ti.compower.ti.commicrocontroller.ti.comwww.ti-rfid.comwww.ti.com/omap

TIE2ECommunity

e2e.ti.com

www.ti.com/wirelessconnectivity

MailingAddress:TexasInstruments,PostOfficeBox655303,Dallas,Texas75265

Applications

AutomotiveandTransportationCommunicationsandTelecomComputersandPeripheralsConsumerElectronicsEnergyandLightingIndustrialMedicalSecurity

Space,AvionicsandDefenseVideoandImaging

www.ti.com/automotivewww.ti.com/communicationswww.ti.com/computerswww.ti.com/consumer-appswww.ti.com/energywww.ti.com/industrialwww.ti.com/medicalwww.ti.com/security

www.ti.com/space-avionics-defensewww.ti.com/video

因篇幅問題不能全部顯示，請點此查看更多更全內容

查看全文

成熟丰满熟妇高潮XXXXX,人妻无码AV中文系列久久兔费 ,国产精品一国产精品,国精品午夜福利视频不卡麻豆

pcm1609a 數(shù)字解碼芯片特性