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4.5AudioInterfaceTab
TLV320AIC3007EVMSoftware
www.ti.com
Figure8.AudioInterfaceTab
TheAudioInterfacetab(Figure8)allowsconfigurationoftheaudiodigitaldatainterfacetothe
TLV320AIC3007.
TheinterfacemodecanbeselectedusingtheAudioSerialDataModecontrol—selectingeitherI
2
S
mode,DSPmode,orRight-orLeft-Justifiedmodes.WordlengthcanbeselectedusingtheAudioSerial
WordLengthcontrol,andthebitclockratecanalsobeselectedusingtheBitClockModeratecontrol.
TheAudioDataWordOffset,usedinTDMmode(seetheproductdatasheet)alsocanbeselectedon
thistab.
AlongthebottomofthistabarecontrolsforchoosingtheBLCKandWCLKasbeingeitherinputsor
outputs.WiththecodecconfiguredinSlavemode,boththeBCLKandWCLKaresettoinputs.Ifthe
codecisinMastermode,thenBCLKandWCLKareconfiguredasoutputs.Additionally,twobuttons
providetheoptionsfor3-statingtheDOUTlinewhennovaliddataisavailableandfortransmittingBLCK
andWCLKwhenthecodecispowereddown.
Re-synchronizationoftheaudiobusisenabledusingthecontrolsinthelowerrightcornerofthisscreen.
Re-synchronizationisdoneifthegroupdelaychangesbymorethan±FS/4fortheADCorDACsample
rates(seetheTLV320AIC3007datasheet).Thechannelscanbesoft-mutedwhendoingthe
Re-synchronizationiftheSoftMutebuttonisenabled.
ThedefaultmodefortheEVMisconfiguredas44.1-kHz,16-bit,I
2
Cwords,andthecodecisaslave
(BCLKandWCLKaresuppliedtothecodecexternally).ForusewiththePCsoftwareandthe
USB-MODEVM,thedefaultsettingsmustbeused;nochangestothesoftwarearerequired.
TLV320AIC3007EVM-K14SLAU286–June2009
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