Johnson WLT2564M BT Module User Manual

Johnson Industries (Shanghai) CO., LTD. BT Module Users Manual

Users Manual

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JOHNSONINDUSTRIES(SHANGHAI)CO.,LTD.
2/15/2016 1/9
WLT2564M module manual
TI CC2564 BR/EDR/LE
MVsilicon BM5064
Spec
V2.0
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JOHNSONINDUSTRIES(SHANGHAI)CO.,LTD.
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Index
1Summary........................................................................................................................................3
1.1Functions.............................................................................................................................3
1.2ApplicationField..................................................................................................................3
2Electricalcharacters.......................................................................................................................4
2.1Basiccharacters................................................................................................ .................4
3powersupply..................................................................................................................................5
3.1Modulepowersupply.........................................................................................................5
3.2theuseofaudiopowersupply............................................................................................5 
4moduleplacementandclearancearea..........................................................................................6
4.1 ontheclearanceareainstructions..................................................................................6
4.2ontheclearanceareainstructions......................................................................................6
5Useaudioprecautions....................................................................................................................7
5.1onthesub‐"land"................................................................................................................7
5.2UsedbyMIC_IN...................................................................................................................7
5.2lineout................................................................................................................................7
6PCBDesign.....................................................................................................................................7
7FCC Warning...................................................................................................................................9
8ISED RSS Warning...........................................................................................................................9
6.1Label location.....................................................................................................................7
6.2Example Board...................................................................................................................8
6.3PCB Layout Guide Layout....................................................................................................8
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1Summary
WLT2564MisadualmodeBluetoothmodulewithembeddedBluetopia™protocolstack,support
forallBluetoothprofilesandBLEprofiles. 
WLT2564MisbasedonTICC2564.ItisaBluetoothBR/EDR/BLEsinglechipsolution.CC2564has
best‐in‐classRFperformance(TXpower,RXsensitivity,blocking)andadvancedpower
managementforverylow‐powerapplications. 
WLT2564MhasahighefficiencyaudioSOCinside.ItisBM5064fromMVSiliconwhichintegrates
ARMCortex‐M3MCU,Bluetoothstack,MP3/WMAdecoder,MP2encoder,OTG,SD/MMCcard
controller,AudioDAC,AudioADC,RTCinasinglechip. 
1.1Functions
BluetoothBR/EDR/LE 
SupportallBluetoothprofiles,suchasSPP,SPPLE,HFP,MAP,PXP,A2DP,ANP,HID,AVRCP…
EmbeddedARMCortex‐M3,running@96MHz
Built‐in128KbyteSRAM
SupportbootingfromSPI‐flashandthefirmwarecanbeupdatedthroughSDorUSBdisk
Built‐inMP2/MP3/WMA/FLAC(8/16/24bit)/WAV(IMA‐ADPCMandrawPCM)decoderand
MP2encoder
Embedded20‐bitAudioDACand16‐bitAudioADC
Built‐inCaplessEarphonedriver
Built‐inMICamplifyblockwithAGC
Supportaudioinput
Onboard2.4GHzantenna，supportexternalantennaoptional
SupportAT+CommandSetforConfiguration
Singlepowersupply:3.35V~4.2V
Smallestsize:18x35mm
FlexibleSoftwarePlatform,customizedsoftwareservice
1.2ApplicationField
BluetoothSpeaker
TruewirelessstereoAudiosystem
Bluetoothhandsfree
Fitness
WirelessPOS
Portableprinter
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2Electricalcharacters
2.1Basiccharacters
AbsoluteMaximumRatings Min Max Unit
PowersupplyVoltage(LDOIN) –0.5 +5.5 V
VoltageofI/Opins –0.5 +3.6 V
StorageTemperature –55 +125 °C
Table1. AbsoluteMaximumRatings
RecommendedOperatingConditions Min TYP Max Unit
PowersupplyVoltage(LDOIN) 3.35 4.2 V
VoltageofI/Opins 3.03.3 3.6 V
OperatingTemperature ‐30 25 75 °C
Table2. RecommendWorkingCondition
WirelessStandard BluetoothBR/EDR/LE
Frequency2.402GHz～2.480GHz
Max TXpower9dBm
Antennainternal：ceramicantenna Highgainasexternalantenna
Table3.Bluetoothfeatures
I/O pins Test Conditions Min Max Unit
Logic input low, VIL0 0.75V
Logic input high, VIH2.1 3.6V
Logic output low, VOL 6mA 0 0.6V
Logic output high, VOH 6mA 2.7 3.3V
Table4.DCCharacteristicsofI/Opins
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3powersupply
3.1modulepowersupply
Powersupplyinputpin20(LDO_IN);pin21(POWER_ON)toenablethepower,thisfeature
temporarilycannotbeused,needtobepulledhigh;supplyvoltagerangeof3.35~4.2V,
Recommendedbypasscapacitor10uF,0.1uFcombinationfilter(ifyouusetheaudiofunction,
powersupplyprogramseethenextsection).Pin10,18,22,26,40,47,48arethemodule's"ground",
wherepin10isanalogaudioground,directlywiththe"ground"whennotusingaudio.
WLT2564Mmodulepin13(3.3V),45(3.3V)3.3Voutputpinforthemodule(externalpower
supplycannotbecutfromtheexternalpowersupply),youcanusethisoutputpowertodo
somesimplepull‐up,DriveLEDindicator.Thispowersupplyoutputcurrentisonly100mA,notas
ahigh‐powerdevicepowersupply
3.2Theuseofaudiopowersupply
WLT2564Mmodulewithaudioplayback,voicecallsandotherfunctions;
 DuetotheworkingmechanismofBluetooth,willcausethesupplycurrentfluctuations,ifyou
needtousetheaudiofunction,theneedtominimizetheimpactofpowersupplyripple;module
powersupplyisrecommendedtodothefollowing.
1. Themodulepowersupplyandaudioamplificationcircuitseparatepowersupply.
2. Powersupply"RC"filterafterthesupplymodule,thepowersupplycircuitinseriesresistance
of10ohmresistor,theresistancepowershouldbegreaterthan0.1W.
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4moduleplacementandclearancearea
   WLT2564MfortheRFmodule,itslayoutinthePCBlayoutandcopperroutingwillaffectitsRF
performance,thefollowingspecificdetailsofseveralcases.
4.1Descriptionofplacement
Moduleplacementcanberoughlydividedintothefollowingthreecases
 1"placedinthePCBboardcorner,inthiscase,themoduleantennaonbothsideswithout
obstacles,thebestperformance.
   2"placedinthePCBboardedge,inwhichcase,themoduleantennaunilateralobstacle,
betterperformance.
   3"placedinsidethePCBboard,inwhichcase,thereareobstaclesaroundthemodule
antenna,RFperformanceispoor,
Willaffectitscommunicationdistanceandcommunicationspeed.
4.2ontheclearanceareainstructions
 WLT2564Mmoduleantennatobedonebelowtheclearancearea,theclearanceareashould
nothaveanylayerofcopperandtraces,thereshouldnotbecopperstudscrewsandothermetal
objects.
 1"Clearanceareashouldnothaveanymetalobjects,themodulefromtheheadroomedge
shouldbegreaterthan10mm,iftheboardedgeofthedevice,theboardedgeallthebetterasa
clearancearea,
 Iftheclearanceareaunderthehollow,thatisremovedundertheclearanceareaFR4sheet
performancebetter.
  2"Accordingtotheuseoftheenvironment,ifthemoduleantennapartoftheprobeoutofthe
PCBboard,thebetter.
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5Useaudioprecautions
Useofaudiofeatures(includingmusicplaybackandvoicecalls)onthemoduleperformance
requirementsarehigher.Usethefollowingissuesneedattention.Powersupplyonthesecond
chapterhasbeenintroduced,nottoemphasizehere.
5.1onthesub‐"land"
WLT2564Manalogmodulewillbeseparatedout,theusershouldtrytousetheaudiofunctionto
separateanalogtohelpimprovesoundquality
5.2UsedbyMIC_IN
   WLT2564MmodulesupportsMICIN,forvoicecallsandaudiopickup,theuseofMIC_IN
whenthemicrophoneorthemicrophonetothegroundandtheanalogmodule(AGND)
connected.
 MIC_INpickupamplitudeis50mV,whenuseddirectlytothemicrophoneoutputandMIC_IN
connected,mustnotbeamplifiedmicrophonesignalinputtotheMIC_IN.
5.3LINE_OUT
WLT2564MmoduleLINOUTinterfacecandriveheadphonesorexternalpoweramplifierto
supplyspeakers.Candrive32Europeanheadphones,themaximumoutputpowerof20mW.
 Audiosignallinesneedto"land"package,topreventexternalinterference,avoidparallel
wiringwiththepowercord.
6PCBDesign
6.1Label
WLT2564M module FCC ID:2AKDB-WLT2564M ,please refer the below :
PRODUCT: Buletooth module
MODEL: WLT2564M
FCC ID:2AKDB-WLT2564M
IC :22145-WLT2564M
Figure4.Label
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Figure5.Footprintdimensions
6.3PCBLayoutGuide
Bluetoothworksinafrequencyof2.4GHz,thedesignofPCBandMechanicalshouldbecarefulto
avoidtheimpactofvariousfactorsontheRFperformance.Pleasenotethefollowing:
1. OutercasingsurroundingWLT2564Mmoduleshouldavoidusingmetalmaterials.Ifthe
casingismetal,itisrecommendedtouseanexternal2.4GHzantenna.
2. MetalscrewsshouldbefarawayfromRFpartofmodule.
3. Moduleshouldbeplacedontheedgeofmotherboard,ensuretheantennatowardsoutside.
PleasemakesurethatalllayershavenotraceorcopperundertheAntennaregion.
6.2ExampleBoardLayout
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7FCC Warning:
Any Changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
FCC Radiation Exposure Statement:
To satisfy FCC RF Exposure requirements for this transmission devices, a separation distance
of 20cm or more should be maintained between the antenna of this device and persons during
operation. To ensure compliance, operation at closer than this distance is not recommended.
The antenna(s) used for this transmitter must not be co-located or operating in conjunction
with any other antenna or transmitter.
This device complies with Innovation,Science and Economic Development Canada licence-
exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may
not cause interference, and (2) this device must accept any interference, including interference
that may cause undesired operation of the device.
 Le présent appareil est conforme aux CNR d'ISED applicables aux appareils radio exempts de
licence. L'exploitation est autorisée aux deux conditions suivantes:
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d'en compromettre le fonctionnement.
8ISED RSS Warning:
ISED RF exposure statement :
This equipment complies with ISED RF radiation exposure limits set forth for an uncontrolled
environment .This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.
Cet équipement est conforme aux ISED RF limites d'exposition aux radiations dans un
environnement non contrôlé. Cet émetteur ne doit pas être situé ou opérant en conjonction avec
une autre antenne ou émetteur.
The modular transmitter must be equipped with either a permanently affixed label or must
be capable of electronically displaying its FCC identification number：
If using a permanently affixed label, the modular transmitter must be labeled with its own FCC
identification number. and, if the FCC identification number is not visible when the module is
installed inside another device, then the outside of the device into which the module is installed
must also display a label referring to the enclosed module. This exterior label can use wording
such as the following: “Contains Transmitter Module FCC ID:2AKDB-WLT2564M.” Any similar
wording that expresses the same meaning may be used. The Grantee may either provide such a
label, an example of which must be included in the application for equipment authorization, or,
must provide adequate instructions along with the module which explain this requirement. In
the latter case, a copy of these instructions must be included in the application for equipment
authorization.

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