Hangzhou Gubei Electronics Technology 3301-SBSL Users manual
BiTrend™ EssentialSeriesWi-Fi Module
Datasheet
WT1SBSL
Hangzhou Gubei Electronics Technology Co., Ltd.
V 1.0.0
22/01/2016
1stissue of preliminary document
Copyright Information
The information contained in this document is the proprietary information of Hangzhou Gubei
Electronics Technology Co., Ltd. (hereinafter referred as BroadLink). Further, no portion of this
document may be altered or edited in any form or by any meanswithout the prior written
consent of BroadLink, the copyrightholder.
Further BroadLink reserves the right to make modifications, additions anddeletions to this
document due to typographical errors, inaccurate information, orimprovements to products
mentioned in the document at any time and without notice. Such changes will, nevertheless be
incorporated into new editions of this document or published as errata sheet.
Version History
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Table of Contents
1. Introduction ................................................................................................................................. 3
1.1 Overview ............................................................................................................................ 3
1.2 Applications ....................................................................................................................... 4
1.3 Key Features ...................................................................................................................... 4
2. Product Overview ....................................................................................................................... 5
2.1 Product Picture ................................................................................................................. 5
3. Electrical Characteristics ............................................................................................................. 6
3.1 Absolute Maximum Ratings – Voltage & Current ........................................................ 6
3.2Current consumption ........................................................................................................ 7
3.3 Absolute maximum ratings – Temperature ................................................................... 7
3.4Absolute maximum ratings – ESD ................................................................................... 7
4. RF Characteristics ........................................................................................................................ 8
4.1Basic Characteristics .......................................................................................................... 8
4.2 IEEE802.11b Mode ............................................................................................................ 8
4.3 IEEE802.11g Mode ............................................................................................................ 9
4.4 IEEE802.11n 20Mhz Bandwidth Mode ......................................................................... 10
4.5 IEEE802.11n 40Mhz Bandwidth Mode ......................................................................... 11
5. Mechanical Characteristics ...................................................................................................... 12
6. Module Interfaces ..................................................................................................................... 13
6.1 PIN Layout ....................................................................................................................... 13
6.2 PIN Definitions ................................................................................................................ 14
7. Reference Design ...................................................................................................................... 15
8.1 Antenna Selection .......................................................................................................... 16
8.2 Minimizing Radio Interference ..................................................................................... 17
8.3 Specification of On-Board Antenna ............................................................................. 18
Appendix A Glossary（Quentin respible） ............................................................................... 19
Appendix B Reference paper（Quentin respible） .................................................................. 21
Contact Us ..................................................................................................................................... 22
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1. Introduction
RF
receiver
RF
transmitter
Baseband
MAC /
Packet
buffer /
security
engine
UART
System
control
RF_IN
RF_OUTP
RF_OUTN
UART
GPIO/LED
1.1 Overview
BiTrend™ Essentialis the industrial leading 2.4Ghz 802.11 b/g/n embedded Wi-Fi module which
delivers unmatched performance and codeless development in a compact package, providing
a quick, easy and cost effective way for developers and manufacturers to add Wi-Fi connectivity
for home automation, lighting control, energy efficiency and other IOT applications.
BiTrend™ Essential family combines a 2.4Ghz 802.11 b/g/n radio transceiver with a 32-bit
microprocessor and embedded with MAC, baseband processing and optimized Wi-Fi network
stack. It is an ideal solution for developers and manufacturers with limited RF and embedded
programming expertise as it significantly reduces RF design time and removes the burden of
testing and certification.
Benefitted from BroadLink’s turn-key solution, BiTrend™ Essential is an ideal solution for
developers with limited Wi-Fi or RF expertise or for those seeking faster time to market. It
reduces RF design time and removes the burden of testing and certification. BiTrend™ Essential
is fully compliant with IEEE 802.11 b/g/n standard and certified with CE, FCC and RoHS.
BiTrend™ Essential is a highly integrated Wi-Fi SoC(system on Chip) single chip, which
supportsIEEE802.11b/g/n single stream, providing GPIO for intelligent control, and UART
interfaces for device communication.
BiTrend™ Essential has 8Mbits flash and integrates power amplifier, low noise amplifier, and RF
switch to reduce the module size and RF design capability required. And also integrate power
manage unit for single 3.3V power source for cost effective design.
BiTrend™ Essential embedded 32-bit RISC MCU for 802.11b/g/n drivers, supplicant, TCP/IP
protocol stack, and networking applications, can be operated in station mode and softAP mode.
The WT1SBSL is an ideal solution for embedded device to enable networking service with
minimized design effort.
Figure 1. WT1SBSL block diagram
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1.2 Applications
Frequency Range
Wi-Fi Standard
IEEE 802.11 b/g/n
Transmitter Power
MIN Receiver Sensitivity
802.11b<-78dBm
802.11g<-68dBm
802.11n<-66dBm
Data rate
11M@802.11b, 54M@802.11g, MCS7@802.11n
Security
Encryption Standard：WEP/WEPA/WPA2
EncryptionAlgorithm：WEP64/WEP128/TKIP/AES
Wi-Fi Modes
STA/AP
Antenna type
PCB printed ANT
Smart home appliances
Remote Control
Medical/Health Care
Network consumer devices
1.3 Key Features
a． Support IEEE802.11b/g/n
2.412 GHz - 2. 462GHz
802.11b:17dBm±0.5
802.11g:18dBm±0.5
802.11n:16dBm±0.5
b． Support UARTtransparent transfer
c． Support STA\AP
d． Patent SmartConfig™ technology
e． Support IPv4, TCP/UDP/ DNS/DHCP
f． PCB printed antenna
g． Power source: 3.3V
h． Peripherals:
1*UART
5*GPIO
1*RESET
i． Dimension 31mm*17.7mm*3.6mm
j． ESD: 2KV
k． Absolute maximum ratings
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Symbol
Description
Min.
Max.
Units
Ts
Storage temperature
-40
125 ℃ TAMBIENT
Ambient Temperature
-10
70
℃
Vdd
Supply voltage
0
3.63 V Vio
Voltage on IO pin
-0.28
3.63 V VESD
HBM(human body model)
2000
V
2. Product Overview
2.1 Product Picture
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3. Electrical Characteristics
3.1 Absolute Maximum Ratings – Voltage & Current
Using products above the absolute maximum ratings may cause permanent damage to the
device. These are maximum ratings only and functional operation of the device at these
conditions is not implied. Exposure to maximum rating conditions for extended periods may
affect the reliability of the device.
Symbol Rating MIN TYP MAX Unit
VDD33 3.3V Supply Voltage 2.97 3.3 3.63 V
Symbol Ra
I
VDD
I
VSS
Total current into VDD power lines (source)
Total current out of VSS ground lines (sink)
Output current sunk by any I/O and control pin
I
IO
Output current source by any I/Os and control pin
ting
s
Max Unit
90
90
mA
10
10
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