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3.4GAINJumpers
3.5DataFormatJumpers
3.6CONFIGJumpers
JumpersandControlUtilities
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GAIN0andGAIN1jumpersenabletheusertochangethegainofthedevice.Itisimportanttoassert
RESET(S2labeledMASTERRESET)aftereachgainchangeinorderforthedevicetorecognizethenew
gainconfiguration.ThetruthtableisshownbelowandalsoitismarkedontheEVMboard.However,the
gainsettingsareWRONGontheEVMsilkscreen.RefertoTable3forthecorrectgainsettings.
Table3.TAS5704GainConfiguration
JumperGAIN1JumperGAIN0GAIN(dB)
ShuntIN=0ShuntOUT=1
00–3
013
109
1112
FM0,FM1,andFM2areusedtochangethedataformatbywhichTAS5704operates.FMT0andFMT1
jumpersassociatedwithDIR9001inSPDIFinterfaceenablestheusertochangethedataformatof
DIR9001sothatthedataformatisinsyncwithTAS5704dataformat.BothTAS5704andDIR9001are
setbydefaulttooperateat24-bitI2Sformat.ItisimportanttoassertRESETaftereachformatchangein
orderforthedevicetorecognizetheformatchange.Thetruthtablesbelowindicatethejumper
configurationandthedataformatofTAS5704andDIR9001(SPDIF).
Table4.TAS5704DataFormat
FM2
(1)
FM1
(1)
FM0
(1)
DATAFORMAT
00016BITRJ
00118BITRJ
01020BITRJ
01124BITRJ
10016-24BITI2S(Default)
10116–24bitRJ
110RESERVED
111TESTMODE
(1)
SHUNTIN=0,SHUNTOUT=1(seeschematicsfordetails)
Table5.DIR9001SPDIFOutputDataFormat
FMT1
(1)
FMT0
(1)
DATAFORMAT
0016BIT
0124BITRJ
1024BITLJ
1124BITI2S(Default)
(1)
SHUNTIN=0,SHUNTOUT=1(Seeschematicfordetails)
CFG1andCFG2jumpersareusedtoselecttheoutputconfigurationbetweensingle-endedoutputsand
bridge-tiedoutputsoracombinationofthetwooptions.SeeTable6forsummaryofpossiblesettings.
TA5704EVM4-ChannelDigitalAudioPowerAmplifierwithHardwareControl 12SLOU224–April2008
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