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2.2PSUControlInterface(J902)
1
2
3
5
4
(PCBconnectortopview)
2.3LoudspeakerConnectors(J101…J107)
PSUControlInterface(J902)
Table2-2.J901PinDescription
PINNO.NET-NAMEATSCHEMATICSDESCRIPTION
1PVDDOutput-stagepowersupply
2SYSTEMSystempowersupply
3GNDGround
4GNDGround
Table2-3.J900PinDescription
PINNO.NET-NAMEATSCHEMATICSDESCRIPTION
1PVDDExtraoutput-stagepowersupply
2PVDDExtraoutput-stagepowersupply
3GNDExtraground
4GNDExtraground
Thisinterfaceisusedforonboardsensingofoutputsupplyvoltageandforthepowersupplyvolume
control(PSVC)signal.
Figure2-3.J902PinNumbers
Table2-4.J902PinDescription
PINNO.NET-NAMEATSCHEMATICSDESCRIPTION
1—Reservedforfutureuse
2PVDDSenseofoutputpowersupply
3GNDGround
4RESETSystemreset(bidirectional)
5PSVCPowersupplyvolumecontrolsignal
CAUTION
Bothpositiveandnegativespeakeroutputsarefloatingandmaynotbe
connectedtoground(e.g.,throughanoscilloscope).
SystemInterfaces 10SLEU071–June2006
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