BiTrend B d™ EssentialSerriesWi-F Fi Module Datashe eet W WT1SBS
Han ngzhou Gubei G Ele ectronics Technology Co., Ltd. Co opyrigh ht Inforrmatio on The information n contained in this docu ument is the e proprietarry informatio on of Hangzzhou Gub bei Electroniics Technolo ogy Co., Ltd d. (hereinaftter referred as BroadLiink). Furtherr, no porttion of this document may m be alterred or edite ed in any forrm or by an ny meanswithout the prior written n consent off BroadLink, the copyrightholder.
Table of Con ntents 1. In ntroduction ................................................................................................................................... 3 ew .............................................................................................................................. 3 1.1 Overvie 1.2 Applications......................................................................................................................... 4 1.3 Key Fea atures .....................................
1. Introd duction n 1.1 1 Overview BiTre end™ Essenttialis the ind dustrial lead ding 2.4Ghz 802.11 b/g//n embedde ed Wi-Fi mo odule whicch delivers unmatched u p performance e and codele ess developm ment in a co ompact pack kage, provviding a quick, easy and d cost effective way forr developerss and manufacturers to add Wi-Fi connectivvity for home e automatio on, lighting control, c energy efficienccy and otherr IOT applications. BiTre end™ Essenttial family co ombines a 2.4Ghz 2 802.
RF receiver RF_IN Base eband RFF_OUTP RFF_OUTN RF transmitter MAC / Packet buffer / security engine UA ART Sysstem co ntrol UART GPIO/LED Figure 1. WT1SBS W blocck diagram 1.2 2 Applica ations Smart hom me appliances Remote Co ontrol Medical/He ealth Care Network co onsumer devvices 1.3 3 Key Features a． Supportt IEEE802.11 1b/g/n Fre equency Ran nge 2.412 GHz - 2.462 2 GHz Wii-Fi Standard d IEEE 802.11 8 b/g/n n Tra ansmitter Po ower 802.11b:17dBm 802.11g:20dBm 802.
h． Peripherals: 1*UART T 5*GPIO O 1*RESE ET i． Dimension 26mm*1 17.7mm*4mm j ESD: 2KV j． k． Absolutte maximum ratings Symbol Descriptio on Min. Max. Units Ts Sto orage tempe erature -40 125 ℃ TAMBIENT T Am mbient Temp perature -10 70 ℃ Vdd Supply volttage 0 3.63 V Vio V Voltage on IO O pin -0.28 3.63 V VESD HBM(human body H model) 2000 V 5w www.ibroadlink k.
2. Product Overview 2.1 1 Producct Picturre 6w www.ibroadlink k.
2.2 2 Block Diagram D m 40MHz OSC Rese et UART PCB Antenna Filter Circuit Balun Circuit MTK7681 802.1 11 b/g/n n S SoC SPI FLASH Multipllex Circuiit GPIO 3. Electriical Cha aracterristics 3.1 1 Absolu ute Maxiimum Ra atings – Voltage e & Currrent Usin ng products above the absolute maximum ratings may ca ause perman nent damag ge to the device. The ese are maxximum rating gs only and d functional operation o of the devicce at ns is not im mplied.
periods may a ect the relia ability of the device. Symbol Rating M MIN TYP M MAX Unit VDD D33 3.3V Supply Voltage V 2..97 3.3 3 3.63 V Sy ymbol Ra atings Ma ax IVDD Total curren nt into VDD power p lines (ssource) 9 90 IVSS Total curren nt out of VSS ground lines (sink) 9 90 Output current sunk by any I/O and control c pin 1 10 Output current source by b any I/Os an nd control pin n 1 10 IIO Unitt mA 3.
3 Absolu ute maxiimum ra atings – Temperature 3.3 R Ra Symbol Max Unit TSTG Storagettemperature – to+125 –40 ℃ TA Workingtemperature e -10 to+70 ℃ Humidit Non condensin ng, relative hu umidity 90%（RH） 3.4 4Absolutte maxim mum rattings – ESD E S Symbol VESSD(HBM) Ratin ngs Condition ns Class Max Unit Electrostaticc discharge vo oltage (human bod dy model) TA = +25 °C conforming g to JESD22-A114 2 2000 V 4. RF Cha aracterristics 4.
4.2 2 IEEE802.11b Mode M Item Specificatiion Mo odulationType DSSS/CCK K Fre equencyrange e 2412MHz~2462MHz Channel CH1 toCH H11 Datarate 1,2,5.5,11M Mbps TX Characterist C ics Min Typical T Max. Unit Tran nsmitter Output Power 17 11bT Target Power Freq quency Errorr -20 dBm +20 ppm Con nstellation Errror( peak EVM)@ targe et power -17 -10 Typical T Max. Unit 95 -83 dBm -93 -80 dBm 5.
+20 ppm 6Mb bps -5 dB 9Mb bps -8 dB 12M Mbps -10 dB 18M Mbps -13 dB 24M Mbps -16 dB 36M Mbps -19 dB 48M Mbp -22 dB 54M Mbps -25 dB @11 1MHz 20 dBr @20 0MHz -28 dBr @30 0MHz -40 dBr Max.
TX Characterist C ics Min Typical Max. Unitt Tran nsmitter Output Power dBm 18 11n HT20 Target Powe er +20 ppm m M MCS0 -5 dB M MCS1 -10 dB M MCS2 -13 dB M MCS3 -16 dB M MCS4 -19 dB M MCS5 -22 dB M MCS6 -25 dB M MCS7 -28 dB @1 11MHz 20 dBr @2 20MHz -28 dBr @3 30MHz -40 dBr Max.
4.5 5 IEEE802.11n 40 0Mhz Ba andwidtth Mode e Item Specifica ation ModulationType OFDM Frequencyra ange 2422MHz~2452MHz Channel CH3 toCH H9 Datarate MCS0/1/2 2/3/4/5/6/7 TX Characterist C ics Min Typical Max. Unitt Tran nsmitter Output Power dBm 18 11n HT20 Target Powe er +20 ppm m M MCS0 -5 dB M MCS1 -10 dB M MCS2 -13 dB M MCS3 -16 dB M MCS4 -19 dB M MCS5 -22 dB M MCS6 -25 dB M MCS7 -28 dB @1 11MHz 20 dBr @2 20MHz -28 dBr @3 30MHz -40 dBr Max.
M MCS7 -69 Ma aximum Input Level (FER≦ ≦10%) -20 -64 dBm dBm MCS6 6 (FER≦10%)) dBm m MCS7 7 (FER≦10%)) dBm m M Maximum InputLevel (FER R≦10%) dBm m 5. Mecha anical Charact C teristiccs Figure2.WT1SBBStopview(M Metricunits) 14w www.ibroadlink k.
anten nna Shielding Case Figure3.WT1SSBSsideview((Metricunitss) 6. Module Interrfaces 6.1 1 PIN Lay yout WT1 1SBS has one group of pins2X7. p The e layout of PINs P are show wn in the fig gure below. 15w www.ibroadlink k.
8 7 9 6 10 5 11 4 12 13 14 3 3 2 3 1 3 Figure6.WTT1SBSpin-outt 6.2 2 PIN De efinition ns PIN N Assignme ent PIN PIN NAM ME N NOTE Pin1 1 GND Pin2 2 VCC 3 3.
7. Refere ence De esign Pe eripheral MCU WIFI MO ODULE ddition to th he standard serial port，the periphe eral MCU alsso need to provide two GPIO G In ad pinss to connectt with the GP PIO4 pin and d the RST pin of the WIFFI module re espectively,w when the WIFI modu ule works prroperly,the GPIO4 G pin will keep outputting o m message of dog feed ding,if the peripheral p M MCU did no ot receive th he message e,the module e will reset and restart through pulling dow wn the RST pin p by the otther GPIO piin.
8. Antenn naChara acteristics 8.1 1 Antenn na Selection The WT1SBS supports on-b board PCB printed anten nna.When th he Operating g Frequencyis betw ween 2.4G~2 2.5GH, S11 of o antenna port p is less than-10dB an nd peak gain nis about 1.1 1dBi. Figure 7. Antenna radiation pattern p simulation F Figure 8. Antenna port S1 11simulation curve In practical use, WT1SB BS is welded d on user’s boardand b vallue of S11 ha as some changes. 18w www.ibroadlink k.
8.2 2 Minimizing Ra adio Inte erference Whe en integratin ng the Wi-Fii module witth on board PCB printed d antenna, m make sure the thre ee points bellow: 1. The T area un nder the antenna end of the mod dule should be keep cclear of metallic com mponents, co onnectors, vias, traces and other ma aterials that can interferre with the radio r sign nal. 2. Th he area arou und the ante enna end the e module prrotrudes at le east 10mm ffrom the mo other board PCB and any metal enclosure. 3.
8.3 3 Specifiication of o On-Bo oard Anttenna Op peratingFrequ uency 2.4G G~2.5GHz VSW WR(max) 2 Pea ak Gain 1.1dBi AntennaType PIFA A 20w www.ibroadlink k.
Ap ppendix A ADC C AESS ANTT AP BPSSK Analogg‐to ‐Digital Converter Advanced Encrypttion Standaard Antenn na Wireleess Access Point P Binaryy Phase Shiftt Keying DBP PSK DC Differe ential binary phase shift keying Direct Current CCK K CDM M Compllementary Code C Keyingg Chargee Device Mo odel DHC CP Dynam mic Host Con nfiguration Protocol P CMO OS Compllementary Metal M Oxide e Semicondu uctor DNS S DQP PSK DSS SS DTIM EMS SP ESD D EVM M FCC C FER R GND D GPIO HBM M IEEE E IO IOT IPv4 4 LED D LVT
RC RF RISC C RoH HS RX SDIO O SoC C SPD DT SPI STA A TCP P TKIP P TX IP RT UAR UDP P UFL L Resista ance- capacitance Radio Frequency F Reduce ed Instructio on Set Comp puter Restriction of Haza ardous Substances Receive er Serial Digital D Inputt/Output System m on Chip Single--Pole Double e-Throw Serial Peripheral P In nterface Spanniing Tree Algorithm Transfe er Control Prrotocol Tempo oral Key Integ grity Protoco ol Transm mitter Interne et Protocol Universsal Asynchro onous Receivver/Transmittter User
Ap ppendix B [1] IEEE 802.11b/g/n- pu ublished IEE EE 802.11-2 2007wirelesss networking standard and pub blished IEEE 802.11-2012 standard for Informa ation technology - Cla ause 19 off the pub blishedIEEE 802.11-200 07 standard, and Clause C 19 of the published IEEE 802.11-2012 sta andard. FC CC WARNING GS： Any Changes orr modification ns not expresssly approve ed by the partty responsible for compliance e the equipm ment.
FCC C Radiation n Exposure e Statemen nt: Thiss equipment complies witth FCC radia ation exposurre limits set forth f for an u uncontrolled enviironment. Th his equipmen nt should be installed i and d operated with minimum distance 20cm betw ween the radiator& your body. b This tra ansmitter mu ust not be co o-located or o operating in conjjunction with any other an ntenna or tra ansmitter.
or operating in conjunction c w any other antenna orr transmitter. with Co ontact Us Han ngzhou Gu ubei Electronics Tecchnology Co., C Ltd. Roo om 106, Build ding 1, No. 611 6 Jianghong Road, Bin njiang, Hang gzhou, Zhejiang, P.R.Chin na T: +86-571-851 159281 F: +86-57 71-86631817 7 ntl@broadlin nk.com.cn W: www.ibroadlink.co om.cn E: in 25w www.ibroadlink k.
