2.8W Class-D Mono Audio Amp with Class-G Boost And Speaker Sense. PDF
Preview 2.8W Class-D Mono Audio Amp with Class-G Boost And Speaker Sense.
Product Sample & Technical Tools & Support & Folder Buy Documents Software Community TAS2553 SLAS978B–SEPTEMBER2013–REVISEDFEBRUARY2014 TAS2553 2.8-W Class-D Mono Audio Amplifier with Class-G Boost and Speaker Sense 1 Features 3 Description • AnalogorDigitalInputMonoBoostedClass-D The TAS2553 is a high efficiency Class-D audio 1 power amplifier with advanced battery current Amplifier management and an integrated Class-G boost • 2.8Winto8 Ω Loadfrom3.6 VSupply(1% converter. The device constantly measures the THD+N) current and voltage across the load and provides a • Efficiencyof 86%atRatedPower digitalstreamofthisinformation. • I2S,Left-Justified,Right-Justified,DSP,PDM,and The Class-G boost converter generates the Class-D TDM InputandOutputInterface amplifier supply rail. During low Class-D output • InputSample Ratesfrom8kHzto192kHz power, the boost improves efficiency by deactivating andconnectingVBATdirectlytotheClass-Damplifier • HighEfficiencyClass-GBoostConverter supply. When high power audio is required, the boost – AutomaticallyAdjustsClass-D Supply quickly activates to provide significantly louder audio • Built-InSpeakerSense than a stand-alone amplifier connected directly to the battery. – MeasuresSpeakerCurrentandVoltage – MeasuresVBATandVBOOST Voltages The AGC automatically adjusts Class-D gain to reduce battery current at end-of-charge voltages, • Built-InAutomaticGainControl(AGC) preventingoutput clipping, distortionandearlysystem – LimitsBatteryCurrentConsumption shutdown. The fixed gain is adjustable via I2C. The • AdjustableClass-DSwitchingEdge-RateControl gainrangeis-7dBto+24dBin1dBsteps. • PowerSupplies In addition to a differential mono analog input, the – BoostInput:3.0Vto5.5V TAS2553hasbuilt-ina16-bitD/Aconverterusedwith a digital input. Moving the D/A converter from the – Analog:1.65Vto1.95V digital host processor into the integrated amplifier – DigitalI/O:1.5Vto3.6V process provides better dynamic performance at • ThermalandShort-CircuitProtection lowersystemcost. Additionally,sincethePCBrouting • I2CInterfaceforRegisterControl is digital rather than analog, sensitivity to external perturbations such as GSM frame-rate noise is • StereoConfigurationUsingTwoTAS2553s decreasedatthesystemlevel. – I2CAddressSelectTerminal(ADDR) • 2.855mmx2.575mm,0.4mmPitch30-Ball DeviceInformation WCSP ORDERNUMBER PACKAGE BODYSIZE 2 Applications TAS2553YFF WCSP(30) 2.855mmx2.575mm • MobilePhones 2.2 uH • PND VBAT 2SW • PortableAudioDocks 10 nF VREG • Tablets + Audio • GamingDevices Input - VBOOST 22 uF PVDD PDM CLK TAS2553 Ferrite bead MCLK (opt.) OUT+ + I2S To OUT- - Speaker 4 Ferrite bead I2C (opt.) VSENSE+ 3 Enable VSENSE- 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA. TAS2553 SLAS978B–SEPTEMBER2013–REVISEDFEBRUARY2014 www.ti.com Table of Contents 1 Features.................................................................. 1 7.5 RegisterMap...........................................................31 2 Applications........................................................... 1 8 ApplicationsandImplementation...................... 42 3 Description............................................................. 1 8.1 ApplicationInformation............................................42 4 RevisionHistory..................................................... 2 8.2 TypicalApplications................................................42 8.3 Initialization.............................................................46 5 TerminalConfigurationandFunctions................ 3 9 PowerSupplyRecommendations...................... 47 6 Specifications......................................................... 4 9.1 PowerSupplies.......................................................47 6.1 AbsoluteMaximumRatings......................................4 9.2 PowerSupplySequencing......................................47 6.2 HandlingRatings.......................................................4 9.3 BoostSupplyDetails...............................................47 6.3 RecommendedOperatingConditions.......................4 10 Layout................................................................... 48 6.4 ThermalInformation..................................................4 6.5 ElectricalCharacteristics...........................................5 10.1 LayoutGuidelines.................................................48 6.6 TimingRequirements/TimingDiagrams....................8 10.2 LayoutExample....................................................49 6.7 TypicalCharacteristics..............................................9 10.3 PackageDimensions............................................50 7 DetailedDescription............................................ 13 11 DeviceandDocumentationSupport................. 51 7.1 Overview.................................................................13 11.1 Trademarks...........................................................51 7.2 FunctionalBlockDiagram.......................................13 11.2 ElectrostaticDischargeCaution............................51 7.3 FeatureDescription.................................................14 11.3 Glossary................................................................51 7.4 DeviceFunctionalModes........................................20 12 Mechanical,Packaging,andOrderable Information........................................................... 52 4 Revision History ChangesfromRevisionA(October2013)toRevisionB Page • Changeddatasheetformat.................................................................................................................................................... 1 ChangesfromOriginal(September2013)toRevisionA Page • ChangedRegister0x16[3:0]from0111to1000 ................................................................................................................. 40 2 SubmitDocumentationFeedback Copyright©2013–2014,TexasInstrumentsIncorporated ProductFolderLinks:TAS2553 TAS2553 www.ti.com SLAS978B–SEPTEMBER2013–REVISEDFEBRUARY2014 5 Terminal Configuration and Functions 30-BallWCSP YFFPackage (TopView) F5 F4 F3 F2 F1 MCLK BCLK WCLK EN IOVDD E5 E4 E3 E2 E1 SCL IVCLKIN DOUT AIN+ AVDD D5 D4 D3 D2 D1 SDA ADDR DIN AIN- VBAT C5 C4 C3 C2 C1 PGND PGND VREG AGND AGND B5 B4 B3 B2 B1 SW SW VSENSE+ VSENSE- BIAS A5 A4 A3 A2 A1 VBOOST PVDD OUT+ OUT- PGND TerminalFunctions TERMINAL INPUT/OUTPUT/ DESCRIPTION NAME BALLWCSP POWER PGND A1 P Powerground.Connecttohighcurrentgroundplane. OUT– A2 O InvertingClassDoutput. OUT+ A3 O Non-invertingClassDoutput. PVDD A4 P Class-Dpowersupply.ConnectedinternallytoVBOOST–donotdrivethisterminal externally. VBOOST A5 P 7.5Vboostoutput.ConnectedinternallytoPVDD–donotdrivethisterminal externally. BIAS B1 O Mid-railreferenceforClassDchannel. VSENSE– B2 I Invertingvoltagesenseinput. VSENSE+ B3 I Non-invertingvoltagesenseinput. SW B4,B5 I/O Boostswitchterminal. AGND C1,C2 P Analogground.Connecttolownoisegroundplane. VREG C3 O High-sideFETgatedriveboostconverter. PGND C4,C5 P Powerground.Connecttohighcurrentgroundplane. VBAT D1 P Batterypowersupply.Connectto3.0Vto5.5Vbatterysupply. AIN– D2 I Invertinganaloginput. DIN D3 I Audioserialdatainput.FormatisI2S,LJF,RJF,orTDMdata. I2Caddressselectterminal.SetADDR=GNDfordevice7-bitaddress0x40;set ADDR D4 I ADDR=IOVDDfor7-bitaddress0x41. SDA D5 I/O I2Ccontrolbusdata. AVDD E1 P Analoglowvoltagesupplyterminal.Connectto1.65Vto1.95Vsupply. AIN+ E2 I Non-invertinganaloginput. DOUT E3 O SerialI/Vdigitaloutput.FormatisI2S,LJF,RJF,TDM,orundecimatedPDMdata. IVCLKIN E4 I SerialclockinputforundecimatedPDMI/Vdata. SCL E5 I I2Ccontrolbusclock. EN F2 I Deviceenable(HIGH=NormalOperation,LOW=Standby) WCLK F3 I Audioserialwordclock. Copyright©2013–2014,TexasInstrumentsIncorporated SubmitDocumentationFeedback 3 ProductFolderLinks:TAS2553 TAS2553 SLAS978B–SEPTEMBER2013–REVISEDFEBRUARY2014 www.ti.com TerminalFunctions (continued) TERMINAL INPUT/OUTPUT/ DESCRIPTION NAME BALLWCSP POWER BCLK F4 I Audioserialbitclock. MCLK F5 I Externalmasterclock. IOVDD F1 P Supplyfordigitalinputandoutputlevels.Voltagerangeis1.5Vto3.6V. 6 Specifications 6.1 Absolute Maximum Ratings overoperatingfree-airtemperaturerange,T =25°C(unlessotherwisenoted) A MIN MAX UNIT VBAT Batteryvoltage –0.3 6.0 V AVDD Analogsupplyvoltage –0.3 2.5 V IOVDD I/OSupplyvoltage –0.3 3.9 V AIN+,AIN– Analoginputvoltage –0.3 AVDD+0.3 V Digitalinputvoltage –0.3 IOVDD+0.3 V Outputcontinuoustotalpowerdissipation SeeThermalInformation NA 6.2 Handling Ratings PARAMETER DEFINITION MIN MAX UNIT T Storagetemperaturerange –65 150 °C stg HBM 3000 ESD V CDM 1500 6.3 Recommended Operating Conditions overoperatingfree-airtemperaturerange(unlessotherwisenoted) MIN NOM MAX UNIT VBAT Batteryvoltage 3.0 5.5 V AVDD Analogsupplyvoltage 1.65 1.8 1.95 V IOVDD I/Osupplyvoltage 1.5 1.8 3.6 V T Operatingfree-airtemperature –40 85 °C A T Operatingjunctiontemperature –40 150 °C J 6.4 Thermal Information TAS2553 THERMALMETRIC(1) UNIT YFF(30TERMINALS) θ Junction-to-ambientthermalresistance 76.5 JA θ Junction-to-case(top)thermalresistance 0.2 JCtop θ Junction-to-boardthermalresistance 44.0 °C/W JB ψ Junction-to-topcharacterizationparameter 1.6 JT ψ Junction-to-boardcharacterizationparameter 43.4 JB (1) Formoreinformationabouttraditionalandnewthermalmetrics,seetheICPackageThermalMetricsapplicationreport,SPRA953. 4 SubmitDocumentationFeedback Copyright©2013–2014,TexasInstrumentsIncorporated ProductFolderLinks:TAS2553 TAS2553 www.ti.com SLAS978B–SEPTEMBER2013–REVISEDFEBRUARY2014 6.5 Electrical Characteristics VBAT=3.6V,AVDD=IOVDD=1.8V,EN=IOVDD,SWS=0,Gain=15dB,ERC=14ns,R =8Ω+33µH,48kHz L sampleratefordigitalinput(unlessotherwisenoted) PARAMETER TESTCONDITIONS MIN TYP MAX UNIT BOOSTCONVERTER Averagevoltage(w/oincludingripple). BoostOutputVoltage Includesloadregulation(0-0.6A)andline 7.5 V regulation(VBAT=3.0–4.8V). BoostConverterSwitchingFrequency 1.8 MHz CLASS-DCHANNEL MaxAnalogInput ForTHD+N<1% 1 V RMS Full-ScaleDACOutput Alldigitalinterfacemodes 1 V RMS LoadResistance(LoadSpec 6 8 Ω Reisistance) Class-DFrequency 764 kHz VBAT=3.0–4.8V,Pout=1W Class-D+BoostEfficiency 67% (sinewave) Class-DOutputCurrentLimit(Short VBOOST=7.5V,OUT–shortedtoVBAT 3.7 A CircuitProtection) orVBOOST VBAT=3.6V,AV=15dB,RL=8Ω, Class-DOutputOffsetVoltagein inputshortedtogroundthroughsingle -7.4 4.6 mV AnalogInputMode capacitor Class-DOutputOffsetVoltagein VBAT=3.6V,AV=15dB,RL=8Ω,0's -9.8 5.6 mV DigitalInputMode data ProgrammableChannelGainRange Typicalvalue,analoganddigitalinput -7 dB (PGA+class-D),minimum ProgrammableChannelGainRange Typicalvalue,analoganddigitalinput 24 dB (PGA+class-D),maximum ProgrammableChannelGainStep Typicalvalue,analoganddigitalinput 1 dB (PGA+class-D) MuteAttenuation Deviceinshutdown,digitalinputonly 103 dB Rippleof200mVpp@217Hz,Gain=15 63 dB,analoganddigitalinput VBATPowerSupplyRejectionRatio Rippleof200mVpp@1kHz,Gain=15 60 dB (PSRR) dB,analoganddigitalinput Rippleof200mVpp@4kHz,Gain=15 60 dB,analoganddigitalinput Rippleof200mVpp@217Hz,Gain=15 69 dB,analoganddigitalinput AVDDPowerSupplyRejectionRatio Rippleof200mVpp@1kHz,Gain=15 67 dB (PSRR) dB,analoganddigitalinput Rippleof200mVpp@4kHz,Gain=15 62 dB,analoganddigitalinput Rippleof200mVpp@217Hz,Gain=15 CommonModeRejectionRatio 59 dB dB,analoginput 1kHz,Po=0.1W,VBAT=3.6V, 0.6% RL=8Ω 1kHz,Po=0.5W,VBAT=3.6V, THD+N RL=8Ω 0.7% 1kHz,Po=1W,VBAT=3.6V,RL=8Ω 0.9% 1kHz,Po=2W,VBAT=3.6V,RL=8Ω 1.3% A-wtFilter,Gain=15dB,DACmodulator 131% OutputIntegratedNoise(20Hz-20kHz) switching µV -8Ω A-wtFilter,Gain=15dB,AnalogIn, 173% Inputsshorted Copyright©2013–2014,TexasInstrumentsIncorporated SubmitDocumentationFeedback 5 ProductFolderLinks:TAS2553 TAS2553 SLAS978B–SEPTEMBER2013–REVISEDFEBRUARY2014 www.ti.com Electrical Characteristics (continued) VBAT=3.6V,AVDD=IOVDD=1.8V,EN=IOVDD,SWS=0,Gain=15dB,ERC=14ns,R =8Ω+33µH,48kHz L sampleratefordigitalinput(unlessotherwisenoted) PARAMETER TESTCONDITIONS MIN TYP MAX UNIT THD+N=1%,VBAT=3.0V 2.8 MaxOutputPower,8-ΩLoad W THD+N=1%,VBAT=3.6V 2.8 OutputImpedanceinShutdown EN=0V 10 kΩ Analog/digitalinputmeasuredfromtime StartupTime whendeviceistakenoutofsoftware 8 mS shutdown Measuredfromtimewhendeviceis ShutdownTime 1 µS programmedinsoftwareshutdownmode INPUTSECTION Full-scaleDACoutput Alldigitalinterfacemodes 1.0 V RMS Maximumanaloginputvoltage 1.0 V RMS Inputimpedance(terminalsAIN+, EN=IOVDD,Amplifieractive 10 R kΩ IN AIN-) EN=0V,Inshutdown 19 CURRENTSENSE Peakcurrentwhichwillgivefullscale CurrentSenseFullScale 1.4 A digitaloutput PEAK CurrentSenseAccuracy I =354mA (1W) 1% OUT RMS CurrentSenseOffset Inputreferred 0.0029 mA CurrentSenseGainError 0.09 dB THD+N Distortion+Noise Po=1.0W(Load=8Ω+33µH) 0.17% VOLTAGESENSE Peakvoltagewhichwillgivefullscale VoltageSenseFullScale 8.5 V digitaloutput PEAK VoltageSenseAccuracy V =2.83Vrms(1W) 2.2% OUT VoltageSenseOffset Inputreferred 1.45 mV VoltageSenseGainError -0.20 dB THD+N Distortion+Noise Po=1.0W(Load=8Ω+33μH) 0.08% INTERFACE F MCLKfrequency 0.512 49.15 MHz MCLK F PDMClock(IVCLK)FrequencyRange 1.636 3.25 MHz PDM PDMClock(IVCLK)DutyCycle PDM 40% 60% DC Range 6 SubmitDocumentationFeedback Copyright©2013–2014,TexasInstrumentsIncorporated ProductFolderLinks:TAS2553 TAS2553 www.ti.com SLAS978B–SEPTEMBER2013–REVISEDFEBRUARY2014 Electrical Characteristics (continued) VBAT=3.6V,AVDD=IOVDD=1.8V,EN=IOVDD,SWS=0,Gain=15dB,ERC=14ns,R =8Ω+33µH,48kHz L sampleratefordigitalinput(unlessotherwisenoted) PARAMETER TESTCONDITIONS MIN TYP MAX UNIT POWERCONSUMPTION FromVBAT,PLLoff,nosignal 7.10 mA PowerConsumptionwithAnalogInput FromAVDD,PLLoff,nosignal 3.73 mA andIVSenseDisabled FromIOVDD,PLLoff,nosignal 0.04 mA FromVBAT,PLLoff,nosignal 7.31 mA PowerConsumptionwithDigitalInput FromAVDD,PLLoff,nosignal 4.05 mA andIVSenseDisabled FromIOVDD,PLLoff,nosignal 0.32 mA FromVBAT,PLLon,nosignal 5.84 mA PowerConsumptionwithAnalogInput FromAVDD,PLLon,nosignal 7.10 mA andIVSenseEnabled FromIOVDD,PLLon,nosignal 0.32 mA FromVBAT,PLLon,nosignal 7.32 mA PowerConsumptionwithDigitalInput FromAVDD,PLLon,nosignal 8.03 mA andIVSenseEnabled FromIOVDD,PLLon,nosignal 0.32 mA FromVBAT,EN=0 0.1 µA PowerConsumptioninHardware FromAVDD,EN=0 0.2 µA Shutdown FromIOVDD,EN=0 0.0 µA FromVBAT 11.4 µA PowerConsumptioninSoftware FromAVDD 9.1 µA Shutdown FromIOVDD 130 µA DIGITALINPUT/OUTPUT 0.7x V High-leveldigitalinputvoltage V IH IOVDD 0.3x V Low-leveldigitalinputvoltage V IL IOVDD 0.9x V High-leveldigitaloutputvoltage V OH IOVDD 0.1x V Low-leveldigitaloutputvoltage V OL IOVDD MISCELLANEOUS AVDDSupplyUnder-voltage Deviceisinresetstate 0.9 V Threshold Devicecomesoutofresetstate 1.4 VBATSupplyUnder-voltage Deviceisinresetstate 1.8 V Threshold Devicecomesoutofresetstate 2.5 Copyright©2013–2014,TexasInstrumentsIncorporated SubmitDocumentationFeedback 7 ProductFolderLinks:TAS2553 TAS2553 SLAS978B–SEPTEMBER2013–REVISEDFEBRUARY2014 www.ti.com 6.6 Timing Requirements/Timing Diagrams ForI2Cinterfacesignalsoverrecommendedoperatingconditions(unlessotherwisenoted).Note:Alltimingspecificationsare measuredatcharacterizationbutnottestedatfinaltest. PARAMETER TESTCONDITIONS MIN TYP MAX UNIT f Frequency,SCL Nowaitstates 400 kHz SCL t Pulseduration,SCLhigh 0.6 µs W(H) t Pulseduration,SCLlow 1.3 µs W(L) t Setuptime,SDAtoSCL 100 ns su1 t Holdtime,SCLtoSDA 10 ns h1 Busfreetimebetweenstopandstart t 1.3 µs (buf) condition t Setuptime,SCLtostartcondition 0.6 µs su2 t Holdtime,startconditiontoSCL 0.6 µs h2 t Setuptime,SCLtostopcondition 0.6 µs su3 tw(H) tw(L) SCL t th1 su1 SDA Figure1. SCLandSDATiming SCL th2 t(buf) tsu2 tsu3 SDA Start Condition Stop Condition Figure2. StartandStopConditionsTiming 8 SubmitDocumentationFeedback Copyright©2013–2014,TexasInstrumentsIncorporated ProductFolderLinks:TAS2553 TAS2553 www.ti.com SLAS978B–SEPTEMBER2013–REVISEDFEBRUARY2014 6.7 Typical Characteristics VBAT=3.6V,AVDD=IOVDD=1.8V,EN=IOVDD,SWS=0,R =8Ω+33µH(unlessotherwisenoted). L 100 100 VBAT = 3.0 V VBAT = 3.0 V VBAT = 3.6 V VBAT = 3.6 V 10 VBAT = 4.2 V 10 VBAT = 4.2 V % VBAT = 5.0 V % VBAT = 5.0 V +N - 1 VBAT = 5.5 V +N - 1 VBAT = 5.5 V D D H H T T 0.1 0.1 0.01 0.01 0.0001 0.001 0.01 0.1 1 0.001 0.01 0.1 1 P - Output Power - W P - Output Power - W O C004 O C024 AGC=OFF,Gain=15dB AGC=OFF,Gain=15dB Figure3.THD+NvsOutputPower(8Ω)forDigitalInput Figure4.THD+NvsOutputPower(6Ω)forDigitalInput 1 100 VBAT = 5.5 V VBAT = 5.5 V VBAT = 5.0 V VBAT = 5.0 V VBAT = 4.2 V 10 VBAT = 4.2 V VBAT = 3.6 V % VBAT = 3.0 V % VBAT = 3.6 V +N - 0.1 + N - 1 VBAT = 3.0 V THD THD 0.1 0.01 0.01 20 200 2000 20000 0.001 0.01 0.1 1 f - Frequency - Hz C005 PO - Output Power - W C006 AGC=OFF,Gain=15dB,Pout=1W AGC=OFF,Gain=15dB,f=1kHz Figure5.THD+NvsFrequency(8Ω)forDigitalInput Figure6.THD+NvsOutputPower(8Ω)forAnalogInput 1 4.0 3.5 W 3.0 % 0.1 er - 2.5 N - Pow D + VBAT = 5.5 V put 2.0 TH 0.01 VVBBAATT == 54..02 VV P - OutO11..05 VBAT = 3.6 V 0.5 THD + N = 1% VBAT = 3.0 V THD + N = 10% 0.001 0.0 20 200 2000 20000 2.5 3 3.5 4 4.5 5 5.5 f - Frequency - Hz V - Supply Voltage - V C007 BAT C008 AGC=OFF,Gain=15dB AGC=OFF,Gain=15dB,f=1kHz Figure7.THD+NvsFrequency(8Ω)forAnalogInput Figure8.OutputPowerfor1%and10%THD+NvsSupply Voltage(8Ω) Copyright©2013–2014,TexasInstrumentsIncorporated SubmitDocumentationFeedback 9 ProductFolderLinks:TAS2553 TAS2553 SLAS978B–SEPTEMBER2013–REVISEDFEBRUARY2014 www.ti.com Typical Characteristics (continued) VBAT=3.6V,AVDD=IOVDD=1.8V,EN=IOVDD,SWS=0,R =8Ω+33µH(unlessotherwisenoted). L 10.000 100 VBAT = 5.5 V APT Transition VBAT = 5.0V Current - A 1.000 VVVBBBAAATTT === 433...260 VVV ncy 6800 Supply 0.100 Efficie 40 VVBBAATT == 55..50 VV - AT 0.010 VBAT = 4.2 V IB 20 VBAT = 3.6 V VBAT = 3.0 V 0.001 0 0.001 0.010 0.100 1.000 0.01 0.1 1 PO - Total Output Power - W C009 PO - Total Output Power - W C010 AGC=OFF,Gain=15dB,f=1kHz AGC=OFF,Gain=15dB,f=1kHz Figure9.VBATAverageSupplyCurrentvsClass-DOutput Figure10.TotalEfficiencyvsOutputPower(8Ω) Power(8Ω) 0.010 0 B VBAT = 5.5 V d 0.008 atio - ±20 VVBBAATT == 54..02 VV A R urrent - 0.006 ejection ±40 VVBBAATT == 33..60 VV C R upply 0.004 Mode ±60 S n 0.002 mo ±80 AGC = ON m o C AGC = OFF 0.000 ±100 3.0 3.5 4.0 4.5 5.0 5.5 20 200 2000 20000 V - Supply Voltage - V f - Frequency - Hz BAT C011 C012 VBAT=3.0,3.6,4.2,5.0,5.5V 20Hzto20kHz,AnalogInput,Gain=15dB Figure11.VBATQuiescentSupplyCurrentvsSupply Figure12.CommonModeRejectionvsFrequency Voltage 0 0 VBAT = 5.5 V VBAT = 5.0 V VBAT = 4.2 V ±20 VBAT = 3.6 V -20 VBAT = 3.0 V B B d d R - ±40 R - -40 R R S S P P ±60 -60 AVDD = 1.8 V ±80 -80 20 200 2000 20000 20 200 2000 20000 f - Frequency - Hz C013 f - Frequency - Hz C014 20Hzto20kHz,DigitalInput,Gain=15dB 20Hzto20kHz,DigitalInput,AVDD=1.8V Figure13.VBATSupplyRippleRejectionvsFrequency Figure14.AVDDSupplyRippleRejectionvsFrequency 10 SubmitDocumentationFeedback Copyright©2013–2014,TexasInstrumentsIncorporated ProductFolderLinks:TAS2553
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