1Introduction
1.1Features
TAS5518C
8-ChannelDigitalAudioPWMProcessor
www.ti.com
SLES238A–SEPTEMBER2008–REVISEDJULY2009
•L,R,andC
•GeneralFeatures
•LS,RS
–AutomatedOperationWithanEasy-to-Use
•LR,RR
ControlInterface
•Sub
–I
2
CSerial-ControlSlaveInterface
–ConfigurableLoudnessCompensation
–IntegratedAMInterference-Avoidance
Circuitry
–TwoDynamicRangeCompressorsWith
TwoThresholds,TwoOffsets,andThree
–Single,3.3-VPowerSupply
Slopes
–64-PinTQFPPackage
–SevenBiquadsPerChannel
–5-VTolerantInputs
–Full8×8InputCrossbarMixer.Each
•AudioInput/Output
Signal-ProcessingChannelInputCanBe
–AutomaticMaster-Clock-Rateand
AnyRatiooftheEightInputChannels.
Data-Sample-RateDetection
–8×2OutputMixer,Channels1–6.Each
–EightSerialAudioInputChannels
OutputIsaMixofAnyTwo
–EightPWMAudioOutputChannels
Signal-ProcessedChannels.ItIs
ConfigurableasSixChannelsWithStereo
RecommendedtoUsethePass-Through
LineoutorEightChannels
outputMixerConfiguration.
–LineOutputIsaPWMOutputtoDrivean
–8×3OutputMixer,Channels7and8.Each
ExternalDifferential-InputOperational
OutputIsaMixofAnyThree
Amplifier
Signal-ProcessedChannels.ItIs
–HeadphonePWMOutputtoDrivean
RecommendedtoUsethePass-Through
ExternalDifferentialAmplifierLikethe
OutputMixerConfiguration.
TPA112
–ThreeCoefficientSetsStoredontheDevice
–PWMOutputsSupportSingle-Endedand
CanBeSelectedManuallyorAutomatically
Bridge-TiedLoads
(BasedonSpecificDataRates).
–32-,38-,44.1-,48-,88.2-,96-,176.4-,and
–DCBlockingFilters
192-kHzSamplingRates
–AbletoSupportaVarietyofBass
–DataFormats:16-,20-,or24-Bit
ManagementAlgorithms
Left-Justified,I
2
S,orRight-JustifiedInput
•PWMProcessing
Data
–32-BitProcessingPWMArchitectureWith
–64-f
S
Bit-ClockRate
40BitsofPrecision
–128-,192-,256-,384-,512-,and768-f
S
–8×OversamplingWithFifth-OrderNoise
MasterClockRates(UptoaMaximumof
Shapingat32kHz–48kHz,4×
50MHz)
Oversamplingat88.2kHzand96kHz,and
•AudioProcessing
2×Oversamplingat176.4kHzand192kHz
–48-BitProcessingArchitectureWith76Bits
–>110-dBDynamicRange
ofPrecisionforMostAudio-Processing
–THD+N<0.1%
Features
–20-Hz–20-kHz,FlatNoiseFloorfor44.1-,
–VolumeControlRange36dBto–127dB
48-,88.2-,96-,176.4-,and192-kHzData
•MasterVolumeControlRangeof18dB
Rates
to–100dB
–DigitalDe-Emphasisfor32-,44.1-,and
•EightIndividualChannelVolumeControl
48-kHzDataRates
Rangesof18dBto–127dB
–FlexibleAutomuteLogicWith
–ProgrammableSoftVolumeandMute
ProgrammableThresholdandDurationfor
UpdateRates
Noise-FreeOperation
–FourBassandTrebleToneControlsWith
–IntelligentAMInterference-Avoidance
±18-dBRange,SelectableCorner
SystemProvidesClearAMReception
Frequencies,andSecond-OrderSlopes
–Power-SupplyVolumeControl(PSVC)
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas
Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdocument.
MatlabisatrademarkofMathWorks,Inc.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2008–2009,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Not Recommended For New Designs
