User's Manual

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W
LAN/BT System Integration Manual
34 VCC_1V8 PO 1.8Vmonitoringoutput
26 VCC_VIO_X1 PI 1.8/3.3VHostInterface
Supply
ForSDIO,UARTinterface
9 VCC_VIO_X2 PI 3.3VDigitalInterface
supply
ForPCMinterface
1,3,
8,
10,
16,
18,
21,
22,
25,
27,
28,
30,
31,
35,
42
GND P Ground
Table1‐2PinOutDefinition

1.6Powermanagement
Modulesupply(VCC_3V3)
802.11b/g+BluetoothmodulesmustbesuppliedthroughVCC_3V3pinbyaDCpowersupply.Voltages
mustbestable,duetothesurgingconsumptionprofileoftheWiFi/BTsystem.

Name Description Remarks
VCC_3V3 ModuleSupply Cleanandstablesupplyisrequired:lowrippleandlow
voltagedropmustbeguaranteed.Voltageprovidedhasto
bealwaysabovetheminimumlimitoftheoperatingrange.
ConsiderthattherearelargecurrentspikeinWIFIorBT
connectedmode.
VCC_IO_X1,
VCC_IO_X2
I/OSupply Cleanandstablesupplyisrequired:lowrippleandlow
voltagedropmustbeguaranteed.Voltageprovidedhasto
bealwaysabovetheminimumlimitoftheoperatingrange.
GND Ground GNDpinsareinternallyconnectedbutgood(low
impedance)externalgroundcanimproveRF
performances.AllGNDpinsmustbeexternallyconnected
toground.
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