Datasheet

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USBINTERFACE
A
PCM2900
PCM2902
SLES035EMARCH2007REVISEDMARCH2008
ControldataandaudiodataaretransferredtothePCM2900/2902viaD+(pin1)andD–(pin2).Alldatato/from
thePCM2900/2902istransferredatfullspeed.Thedevicedescriptorcontainstheinformationdescribedin
Table1.Thedevicedescriptorcanbemodifiedonrequest;contactaTexasInstrumentsrepresentativefor
details.
Table1.DeviceDescription
USBrevision1.1compliant
Deviceclass0x00(device-definedinterfacelevel)
Devicesubclass0x00(notspecified)
Deviceprotocol0x00(notspecified)
Maxpacketsizeforend-point08bytes
VendorID0x08BB(defaultvalue,canbemodified)
ProductID0x2900/0x2902(defaultvalue,canbemodified)
Devicereleasenumber1.0(0x0100)
Numberofconfigurations1
VendorstringsString#1(seeTable3)
ProductstringsString#2(seeTable3)
SerialnumberNotsupported
TheconfigurationdescriptorcontainstheinformationdescribedinTable2.Theconfigurationdescriptorcanbe
modifiedonrequest;contactaTexasInstrumentsrepresentativefordetails.
Table2.ConfigurationDescriptor
InterfaceFourinterfaces
0x80(Buspowered,noremote
Powerattribute
wakeup)
0x32(100mA.Defaultvalue,canbe
Maxpower
modified)
ThestringdescriptorcontainstheinformationdescribedinTable3.Thestringdescriptorcanbemodifiedon
request;contactaTexasInstrumentsrepresentativefordetails.
Table3.StringDescriptor
#00x0409
#1Burr-BrownfromTI(defaultvalue,canbemodified)
#2USBaudiocodec(defaultvalue,canbemodified)
DEVICECONFIGURATION
Figure31illustratestheUSBaudiofunctiontopology.ThePCM2900/2902hasfourinterfaces.Eachinterfaceis
constructedbyalternativesettings.
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ProductFolderLink(s):PCM2900PCM2902
Not Recommended for New Designs