www.德州仪器.com
TPA3008D2
SLOS435A–MAY2004–REVISEDJULY2004
TERMINALFUNCTIONS
pinnamepinnumberi/odescription
agnd26,30-analoggroundfordigital/analogcellsincore
AV
CC
33-高-voltageanalogpowersupply,notconnectedinternallytopvccrorpvccl
5-vregulatedoutputforusebyinternalcellsandgain0,gain1pinsonly.不
AV
DD
29O
specifiedfordrivingotherexternalcircuitry.
AV
DD
ref7o5-vreferenceoutput—connecttogainsettingresistorordirectlytogain0,gain1.
bsln13-bootstrapi/oforleftchannel,negativehigh-sidefet
bslp24-bootstrapi/oforleftchannel,positivehigh-sidefet
bsrn48-bootstrapi/oforrightchannel,negativehigh-sidefet
bsrp37-bootstrapi/oforrightchannel,positivehigh-sidefet
cosc28i/oi/oforcharge/dischargingcurrentsontocapacitorforrampgenerator.
短的-circuitdetectfaultoutput.
故障=高,短的-circuitdetected.
FAULT11O
故障=低,normaloperation.
statusisresetwhenpoweriscycledorshutdowniscycled.
gain09igainselectleastsignificantbit.ttllogiclevelswithcompliancetoav
DD
.
gain110igainselectmostsignificantbit.ttllogiclevelswithcompliancetoav
DD
.
LINN6INegativeaudioinputforleftchannel
LINP5IPositiveaudioinputforleftchannel
loutn16,17oclass-d1/2-h-bridgenegativeoutputforleftchannel
loutp20,21oclass-d1/2-h-bridgepositiveoutputforleftchannel
8,12,31,32,
nc-nointernalconnection
34,35
pgndl18,19-powergroundforleftchannelh-桥
pgndr42,43-powergroundforrightchannelh-桥
powersupplyforleftchannelh-桥(internallyconnectedtopins22and23),不
pvccl14,15-
connectedtoPVCCRorAV
CC
.
powersupplyforleftchannelh-桥(internallyconnectedtopins14and15),不
pvccl22,23-
connectedtoPVCCRorAV
CC
.
powersupplyforrightchannelh-桥(internallyconnectedtopins46and47),
pvccr38,39-
notconnectedtoPVCCLorAV
CC
.
powersupplyforrightchannelh-桥(internallyconnectedtopins38and39),
pvccr46,47-
notconnectedtoPVCCLorAV
CC
.
RINP3IPositiveaudioinputforrightchannel
RINN2INegativeaudioinputforrightchannel
rosc27i/oi/ocurrentsettingresistorforrampgenerator.
routn44,45oclass-d1/2-h-bridgenegativeoutputforrightchannel
routp40,41oclass-d1/2-h-bridgepositiveoutputforrightchannel
shutdownsignalforic(低=关闭,高=运算的).ttllogiclevelswith
SHUTDOWN1I
compliancetoV
CC
.
vclampl25-internallygeneratedvoltagesupplyforleftchannelbootstrapcapacitors.
vclampr36-internallygeneratedvoltagesupplyforrightchannelbootstrapcapacitors.
v2p54o2.5-vreferenceforanalogcells.
connecttoagndandpgnd—shouldbethecenterpointforbothgrounds.内部的
thermalpad--
resistiveconnectiontoagnd.
6
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