TAS5518C

8-ChannelDigitalAudioPWMProcessor

SLES238A–SEPTEMBER2008–REVISEDJULY2009

www.ti.com

5.7Multiple-ByteRead.........................................................................................................66

6Serial-ControlI

CRegisterSummary....................................................................................67

7Serial-ControlInterfaceRegisterDefinitions..........................................................................71

7.1ClockControlRegister(0x00)............................................................................................71

7.2GeneralStatusRegister0(0x01)........................................................................................71

7.3ErrorStatusRegister(0x02)..............................................................................................71

7.4SystemControlRegister1(0x03)........................................................................................72

7.5SystemControlRegister2(0x04)........................................................................................72

7.6ChannelConfigurationControlRegisters(0x05–0x0C)...............................................................72

7.7HeadphoneConfigurationControlRegister(0x0D)....................................................................74

7.8SerialDataInterfaceControlRegister(0x0E)..........................................................................74

7.9SoftMuteRegister(0x0F).................................................................................................75

7.10AutomuteControlRegister(0x14).......................................................................................76

7.11OutputAutomutePWMThresholdandBack-EndResetPeriodRegister(0x15)..................................77

7.12ModulationIndexLimitRegister(0x16).................................................................................78

7.13Bank-SwitchingCommandRegister(0x40).............................................................................78

7.14InputMixerRegisters,Channels1–8(0x41–0x48)....................................................................80

7.15BassManagementRegisters(0x49–0x50).............................................................................83

7.16BiquadFilterRegister(0x51–0x88)......................................................................................83

7.17BassandTrebleBypassRegister,Channels1–8(0x89–0x90).....................................................84

7.18LoudnessRegisters(0x91–0x95)........................................................................................84

7.19DRC1ControlRegisters,Channels1–7(0x96)........................................................................85

7.20DRC2ControlRegister,Channel8(0x97)..............................................................................86

7.21DRC1DataRegisters(0x98–0x9C).....................................................................................86

7.22DRC2DataRegisters(0x9D–0xA1).....................................................................................87

7.23DRCBypassRegisters(0xA2–0xA9)....................................................................................87

7.248×2OutputMixerRegisters(0xAA–0xAF)..............................................................................87

7.258×3OutputMixerRegisters(0xB0–0xB1)..............................................................................88

7.26PSVCVolumeBiquadRegister(0xCF).................................................................................90

7.27Volume,Treble,andBassSlewRatesRegister(0xD0)..............................................................91

7.28VolumeRegisters(0xD1–0xD9)..........................................................................................91

7.29BassFilterSetRegister(0xDA)..........................................................................................93

7.30BassFilterIndexRegister(0xDB).......................................................................................94

7.31TrebleFilterSetRegister(0xDC)........................................................................................95

7.32TrebleFilterIndex(0xDD).................................................................................................96

7.33AMModeRegister(0xDE)................................................................................................96

7.34PSVCRangeRegister(0xDF)............................................................................................98

7.35GeneralControlRegister(0xE0).........................................................................................98

7.36IncrementalMultiple-ByteWriteAppendRegister(0xFE)............................................................98

8TAS5518CExampleApplicationSchematic...........................................................................99

Contents 4SubmitDocumentationFeedback

Not Recommended For New Designs

TAS5518C

8-ChannelDigitalAudioPWMProcessor

www.ti.com

SLES238A–SEPTEMBER2008–REVISEDJULY2009

ListofFigures

1-1TAS5518CFunctionalStructure................................................................................................11

1-2TypicalTAS5518CApplication(DVDReceiver)..............................................................................12

1-3Pass-ThroughOutputMixerTAS5518CChannelConfiguration............................................................13

2-1TAS5518CDAPArchitectureWithI

CRegisters(f

≤96kHz).............................................................21

2-2TAS5518CArchitectureWithI

CRegisters(f

=176.4kHzorf

=192kHz)............................................22

2-3TAS5518CDetailedChannelProcessing......................................................................................23

2-45.23Format........................................................................................................................24

2-5ConversionWeightingFactors—5.23FormattoFloatingPoint.............................................................24

2-6Alignmentof5.23Coefficientin32-BitI

CWord.............................................................................24

2-725.23Format......................................................................................................................25

2-8ConversionWeightingFactors—25.23FormattoFloatingPoint...........................................................25

2-9Alignmentof25.23CoefficientinTwo32-BitI

CWords.....................................................................26

2-10TAS5518CDigitalAudioProcessing...........................................................................................27

2-11InputCrossbarMixer.............................................................................................................27

2-12BiquadFilterStructure............................................................................................................28

2-13AutomuteThreshold..............................................................................................................30

2-14LoudnessCompensationFunctionalBlockDiagram.........................................................................31

2-15LoudnessExamplePlots.........................................................................................................32

2-16DRCPositioninginTAS5518CProcessingFlow.............................................................................33

2-17DynamicRangeCompression(DRC)TransferFunctionStructure........................................................34

2-18OutputMixers......................................................................................................................38

2-19De-EmphasisFilterCharacteristics.............................................................................................39

2-20Power-SupplyandDigitalGains(LinearSpace)..............................................................................40

2-21Power-SupplyandDigitalGains(LogSpace).................................................................................40

2-22BlockDiagramsofTypicalSystemsRequiringTAS5518CAutomaticAMInterference-AvoidanceCircuit...........41

4-1SlaveModeSerialDataInterfaceTiming......................................................................................54

4-2SCLandSDATiming.............................................................................................................55

4-3STARTandSTOPConditionsTiming..........................................................................................56

4-4ResetTiming.......................................................................................................................57

4-5Power-DownTiming..............................................................................................................57

4-6Error-RecoveryTiming...........................................................................................................58

4-7MuteTiming........................................................................................................................58

4-8HP_SELTiming...................................................................................................................59

4-9I

S64-f

Format...................................................................................................................60

4-10Left-Justified64-f

Format.......................................................................................................61

4-11Right-Justified64-f

Format.....................................................................................................62

5-1TypicalI

CSequence.............................................................................................................63

5-2Single-ByteWriteTransfer.......................................................................................................64

5-3Multiple-ByteWriteTransfer.....................................................................................................65

ListofFigures5

Not Recommended For New Designs

TAS5518C

8-ChannelDigitalAudioPWMProcessor

SLES238A–SEPTEMBER2008–REVISEDJULY2009

www.ti.com

5-4Single-ByteReadTransfer.......................................................................................................66

5-5Multiple-ByteReadTransfer.....................................................................................................66

8-1ExampleApplicationSchematic...............................................................................................100

ListofFigures 6SubmitDocumentationFeedback

Not Recommended For New Designs

Part #	TAS5518CPAG
Description	8 CHANNEL DIGITAL AUDIO PWM PROCESSOR
Category	IC
Availability	In Stock
Qty	2

TAS5518CPAG

Related Items

Technical Document