User Manual
WIFI+BTModul
e
F23BUUM13‐W2
ManualandSpec,revision1.0
ReferenceDocumen
ts
FN‐LINKF23BUUM13‐W2moduleproductspecification
FMAWIFI‐FTSW‐USBschematic
Description
TheFenderFMAWIFI‐FTSW‐USBPCBAssemblyisanI/Oboard(WIFIboard)usedinthefamilyof
FenderModularArchitecture(FMA)products.TheboardhasaUSBportwithamicroABconnector,a
FenderFootswitchportwitha¼”phonejackandawirelessmodule.
CircuitDescription
Referringtotheblockdiagram,therearethreemainsectionsofthecircuit:
FN‐LinkF23BUUM13‐W2module
USBport
Footswitchport
CommunicationwiththeFN‐LinkmoduleisaccomplishedthroughaUSBportfromthe18‐pinmain
boardheader.TheWiFiandBluetoothradiocircuitryiscontainedontheFN‐Linkmodule.Thereisno
antennaonthemodulesotheradiooutputfromthemoduleconnectstoanF‐TypePCBantennaonthe
PCBA.TheFN‐Linkmoduleoperatesfroma3.3Vsu pply source on themainPCBthroughthe18‐pin
header.
TheUSBcircuitonthePCBAconsistsofESDprotectioncomponentsandamicroABUSBconnector.
TheFootswitchcircuitonthePCBAconsistsofESDprotectioncomponentsanda¼”phonejack
connector.
FN‐LinkModuleinstallationandUse
TheFN‐LinkmoduleissolderedtothePCBA.PadsonthePCBAmakecontacttothe3.3Vsupply,USB
portandantenna.Allcommunicationbetweenthehostprocessorandthemoduleisaccomplished
throughthemodulesUSBport.Adescriptionofspecificcommands forBluetoothandWiFidriver
developmentisbeyondthescopeofthisdocumentandcanbefoundindocumentationfromRe altek
fortheRTL8723BUWiFi+BTchipelsewhere.