Texas Instruments PCM1796 TV Cables User Manual


 
1.3SystemRequirements
1.4ElectrostaticDischargeWarning
1.5FunctionControlforDAIInterfaceFormat
1.6ResetOperation
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SystemRequirements
TheDEM-DSD1796/PCM1795/PCM1796/PCM1798EVMhasthefollowingrequirements:
±15-VanalogpowersupplyatAVCC+,AVCC–,andGND
5-VDACpowersupplyatVCCandGND
S/PDIFinput(samplingratef
S
isupto96kHz)connectedatthecoaxialoropticalconnector
RCAanalogoutputconnectedatCN103(Lch)andCN104(Rch);analogfull-scaleoutputlevelis4.5
V
RMS
.
PCconnectedtoprinterconnectorCN003fordemonstrationsoftwareoperation(ifnecessary)
Appropriatetestmodule:
DEM-PCM1795:forPCM1795
DEM-PCM1796:forPCM1796
DEM-DSD1796:forDSD1796
DEM-PCM1798:forPCM1798
ManyofthecomponentsontheDEM-DSD1796/PCM1795/PCM1796/PCM1798EVMaresusceptibleto
damagebyelectrostaticdischarge(ESD).CustomersareadvisedtoobserveproperESDhandling
precautionswhenunpackingandhandlingtheEVM,includingtheuseofagroundedwriststrapatan
approvedESDworkstation.
CAUTION
FailuretoobserveESDhandlingproceduresmayresultindamagetoEVM
components.
SW001,SW002,andSW003areswitchesforcontrollingtheaudiointerfaceformatoftheDAIreceiver
CS8414.ThedefaultaudiointerfaceformatoftheDSD1796/PCM1795/PCM1796/PCM1798isI
2
S™
format.Table1-1liststhedigitalaudioreceiverconfigurationparameters.
Table1-1.DigitalAudioReceiverConfiguration
ReceiverOutputData
SW001SW002SW003Format
LLL16-to24-bitleft–justified
LHL16-to24-bitl2S
16-bitright-justified(or
HLH
standard)
18-bitright-justified(or
LHH
standard)
PressingtheSW004pushbuttoninitiatesaresetoperationoftheCS8414.
SLEU057ASeptember2004RevisedMay2009Description9
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