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5.1AnalogInput
5.2AnalogOutput
5.3DigitalControl
5.4DefaultJumperLocations
6KitOperation
6.1TLV320AIC12KEVMB-K/14KEVMB-KBlockDiagram
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KitOperation
TheanaloginputsourcescanbeapplieddirectlytoJ2(toporbottomside).Theanaloginputsmayalso
beaccessedthroughJ8andscrewterminalsJ9andJ10.
TheanalogoutputsfromtheTLV320AIC12K/14KareavailableonJ1(toporbottom).Theyalsomaybe
accessedthroughJ6andJ7orJ11.NotethattheTLV320AIC14Konlyhasone(differential)outputwhich
canbeaccessedfromJ1orscrewterminalJ6.
ThedigitalcontrolsignalscanbeapplieddirectlytoJ4andJ5(toporbottomside).Themodular
TLV320AIC12KEVMB/14KEVMBcanalsobeconnecteddirectlytotheUSB-MODEVMInterfaceboard
includedaspartoftheTLV320AIC12EVMB-K/14EVMB-K.SeetheproductfolderforthisEVMorthe
TLV320AIC12K/14Kforacurrentlistofcompatibleinterfaceand/oraccessoryboards.
Table5liststhejumpersfoundontheEVMandtheirrespectivefactorydefaultconditions.Pleasenote
thatjumperW5mustbesettoposition1-2(IOVDD=3.3V)whenusingtheUSB-MODEVMforI
2
C
communication.
Table5.ListofJumpers
DEFAULT
JUMPERPOSITIONJUMPERDESCRIPTION
Setsthecodecasmasterorslave.Whensetasmaster(2-3),thecodecprovidesthe
W11-2digitalaudioclocksignals.Whensetasslave(1-2),thecodecreceivesthedigital
audioclocksignals.
UsedforcorrectpolarityforFSD.Instand-alonemaster,FSDmustbepulledhigh
W21-2
(2-3),Instandaloneslave,FSDmustbepulledlow(1-2).
W3InstalledProvidesameansofmeasuringIOVDDcurrent
W4InstalledProvidesameansofmeasuringDVDDcurrent
IOVDDselect.Canbesetto3.3V(1-2)or1.8V(2-3)although3.3Visrequiredwhen
W51-2
usingtheUSB-MODEVMforI
2
Ccommunication.
W6InstalledSelectson-boardEEPROMasfirmwaresource(required)
Wheninstalled,allowstheUSB-MODEVMtohardwareresetthedeviceunderuser
W7Installed
control
W8InstalledProvidesameansofmeasuringAVDDcurrent
W9InstalledProvidesameansofmeasuringDRVDDcurrent
W10InstalledCouplingforOUTP1.Eitherdirectlyorviacapacitor
W111-2SourceforINM1.Setto1-2whenusingexternalcommonmodeforMICIN
W12InstalledDisconnectselectretmicrophone(MK1)
ThissectionprovidesinformationonusingtheTLV320AIC12KEVMB-K/14KEVMB-K,includingsetup,
programinstallation,andprogramusage.
AblockdiagramoftheTLV320AIC12KEVMB-K/14KEVMB-KisshowninFigure1.Theevaluationkit
consistsoftwocircuitboardsconnectedtogether.ThemotherboardisdesignatedastheUSB-MODEVM
Interfaceboard,whilethedaughtercardistheTLV320AIC12KEVMB/14KEVMBdescribedpreviouslyin
thismanual.
SLAU229B–October2007–RevisedAugust2008TLV320AIC12KEVMB-KandTLV320AIC14KEVMB-KUser'sGuide7
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