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WBR2D模组规格书

更新时间:2020-07-13 01:05:26下载pdf

产品概述

WBR2D是由涂鸦智能开发的一款低功耗嵌入式Wi-Fi+BLE模块。它由一个高集成度的无线射频芯片RTL8720DN和少量外围器件构成,内置了Wi-Fi网络协议栈和BLE网络协议以及丰富的库函数。WBR2D内嵌低功耗的32位CPU,512KB SRAM和加挂4MByte的FLASH以及丰富的外设资源。 WBR2D是一个RTOS平台,集成了所有Wi-Fi MAC以及TCP/IP协议的函数库。用户可以基于这些开发满足自己需求的嵌入式Wi-Fi产品。 WBR2D功能框图如图1所示: WBR2D模组规格书

特性

  • 内置低功耗 32 位 CPU,可以兼作应用处理器
  • 主频最高可支持 200MHz
  • 工作电压:3.3±0.3V
  • 外设:5×GPIOs,1×UART(用户),1×ADC
  • Wi-Fi 连通性
    • 802.11a/ b/g/n 1x1,2.4G&5G
    • 通道1-14@2.4GHz;36-177@5G
    • 支持WPA/WPA2 安全模式
    • 802.11b模式下最大+17dBm的输出功率;802.11a模式下最大+15dbm
    • 支持STA/AP/STA+AP工作模式
    • 支持SmartConfig和AP两种配网方式(包括Android和IOS设备)
    • 板载PCB天线,天线增益2dBi@2.4G;2.6dBi@5G
    • 工作温度:-20℃ to 85℃
  • BLE连通性
    • 支持BLE(V5.0)
    • 最高可达到+9dbm输出功率
    • PCB天线,天线增益2dBi@2.4G,和WiFi共用天线
    • 工作温度:-20℃ to 85℃

应用领域

  • 智能楼宇
  • 智慧家居/家电
  • 智能插座、智慧灯
  • 工业无线控制
  • 婴儿监控器
  • 网络摄像头
  • 智能公交

版本更新说明

序号更新日期更新内容更新后版本
12019-10-10新建文档V1.0.0
22019-12-16修改排版V1.0.1
32019-12-31增加蓝牙信息V1.0.2
42020-6-18增加复位IC以及GPIO毛刺处理指导V1.0.3

WBR2D标签信息

WBR2D模组规格书 - P/N:模块型号: - Model:产品物料编码:WBR2D - S/N:生产序列号 - CE:CE认证LOGO - RoHS:RoHS认证LOGO

模块接口

尺寸封装

WBR2D尺寸大小:15mm (W)×18mm (L) ×3.5mm (H)。

WBR2D 尺寸图: WBR2D模组规格书 WBR2D模组规格书 备注:公差说明常规外形公差+/-0.3mm;涉及到插件装配的位置公差都缩到±0.1mm,1mm的板厚公差±0.1mm。

引脚定义

WBR2D模组规格书

引脚序号符号IO类型功能
13.3VP模块电源引脚3.3V
2A28I/O通用GPIO引脚,硬件PWM,对应IC的PA28
3GNDP电源参考地
4A26I/O通用GPIO引脚,硬件PWM,对应IC的PA26
5RX/B2I/O用户串口RXD输入引脚
6A25I/O通用GPIO引脚,硬件PWM,对应IC的PA25
7TX/B1I/O用户串口TXD输入引脚
8ADCAIADC输入端口
9A12I/O通用GPIO引脚,硬件PWM,对应IC的PA12
10ENI/O外部使能复位引脚
11A13I/O通用GPIO引脚,硬件PWM,对应IC的PA13

说明:P 表示电源引脚,I/O 表示输入输出引脚,AI表示模拟输入引脚。

测试点定义

引脚序号符号IO类型功能
-TESTI用于模块生产测试

说明:测试引脚不推荐使用。

电气参数

绝对电气参数

参数描述最小值最大值单位
Ts存储温度-2085
VBAT供电电压3.03.6V
静电释放电压(人体模型)TAMB-25℃-2KV
静电释放电压(机器模型)TAMB-25℃-0.5KV

正常工作条件

参数描述最小值典型值最大值单位
Ta工作温度-20-85
VBAT供电电压3.03.33.6V
VILIO低电平输入-0.3-VCC*0.25V
VIHIO高电平输入VCC*0.75-VCCV
VOLIO低电平输出--VCC*0.1V
VoHIO高电平输出VCC*0.8-VCCV
ImaxIO驱动电流--12mA

连续发射和接收时功耗

2.4G发射接收

工作状态模式速率发射功率/接收典型值单位
发射11b11Mbps+18dBm250mA
发射11g54Mbps+17dBm180mA
发射11n-HT20MCS7+16dBm170mA
发射11n-HT40MCS7+16dBm150mA
接收11b11Mbps连续接收70mA
接收11g54Mbps连续接收72mA
接收11n-HT20MCS7连续接收70mA
接收11n-HT40MCS7连续接收73mA

5G发射接收

工作状态模式速率发射功率/接收典型值单位
发射11a54Mbps+15dBm300mA
发射11n-HT20MCS7+15dBm230mA
发射11n-HT40MCS7+14dBm220mA
接收11a54Mbps连续接收71mA
接收11n-HT20MCS7连续接收72mA
接收11n-HT40MCS7连续接收76mA

工作电流

工作模式工作状态,Ta=25℃平均值最大值(典型值)单位
快连配网状态模块处于快连配网状态,Wi-Fi指示灯快闪57184mA
热点配网状态模块处在热点配网状态,Wi-Fi指示灯慢闪203392mA
网络连接状态模块处于联网工作状态,Wi-Fi指示灯常亮5598mA
断网状态模块处于断网工作状态, Wi-Fi 指示灯常灭5359mA

射频参数

基本射频特性

参数项详细说明
工作频率2.412~2.484GHz; 5.180~5.885GHz
Wi-Fi标准IEEE 802.11a/b/g/n(通道1-14;通道36-177)
数据传输速率11b:1,2,5.5, 11 (Mbps); 11a/g:6,9,12,18,24,36,48,54(Mbps); 11n: HT20 MCS07; HT40 MCS07
天线类型PCB天线,天线增益2dBi@2.4G;2.6dBi@5G

发射性能

2.4G-TX连续发送性能

参数项最小值典型值最大值单位
RF平均输出功率,802.11b CCK Mode 11M-17-dBm
RF平均输出功率,802.11g OFDM Mode 54M-16-dBm
RF平均输出功率,802.11n HT20 Mode MCS7-15-dBm
RF平均输出功率,802.11n HT40 Mode MCS7-14-dBm
频率误差-10-10ppm

5G-TX连续发送性能

参数项最小值典型值最大值单位
RF平均输出功率,802.11aOFDM Mode 54M-14-dBm
RF平均输出功率,802.11n HT20 Mode MCS7-13-dBm
RF平均输出功率,802.11n HT40 Mode MCS7-12-dBm
频率误差-10-10ppm

接收性能

RX灵敏度

参数项最小值典型值最大值单位
PER<8%,RX灵敏度,802.11b DSSS Mode 11M--91-dBm
PER<10%,RX灵敏度,802.11a/g OFDM Mode 54 M--75-dBm
PER<10%,RX灵敏度,802.11n OFDM Mode HT20-MCS7--72-dBm

天线信息

天线类型

只有 PCB 板载天线接入方式。

降低天线干扰

在Wi-Fi模块上使用PCB板载天线时,为确保Wi-Fi性能的最优化,建议模块天线部分和其他金属件距离至少在15mm以上。 用户PCB板在天线区域勿走线甚至覆铜,以免影响天线性能。布局要点是:确保印制天线正下方或者正上方没有基板介质;确保印制天线的周围远离金属铜皮,这样可以最大程度上保证天线的辐射效果。 WBR2D模组规格书 模块的PCB板载天线区域参考“机械尺寸图”。

上电时序和复位

上电时序

RTL8720DN 芯片对上电时序有要求,建议3.3V电压从0V爬升到3.3V的时间在40mS之内. WBR2D模组规格书

SymbolParameterMinimumTypicalMaximumUnit
TPRDY3.3V ready time0.6 40mS
CHIP_ENCHIP_EN ready time0.6 40mS

复位

模块的底板设计时,模块的CHIP_EN脚预留复位IC,推荐IC型号为贝岭BL8506-27CRO,SOT23封装,参考电路如下(R30预留,可不贴).

WBR2D模组规格书

GPIO引脚处理

模块个别引脚(PA12,PA13,PA15,PA25,PA28,PA26)在芯片没完全工作前会有瞬时高电平脉冲,芯片工作以后就一切正常了。对于这些引脚,如果直接用做驱动光源或继电器使用时,为了避免上电瞬间毛刺的影响可以做如下参考处理。 在引脚的输出端口下拉1K电阻,然后串联一个二极管,此时经过二极管后GPIO的电压会下降到2.7V左右。红色框代表客户底板上原有的驱动管,二极管D1和下拉1K需要新加。 若是直接驱动灯类,则在MOS管的栅极下拉10K电阻,若非直接驱动灯类且等到模组正式起来后才发出PWM信号,则不用加下拉电阻和二极管。 若是驱动继电器,可以根据实际情况把二极管换成0欧姆。 WBR2D模组规格书

封装信息及生产指导

机械尺寸

PCB尺寸大小:15mm (W)×18mm (L) ×3.5mm (H)。 WBR2D模组规格书

侧视图

WBR2D模组规格书

备注:默认的尺寸公差为+/- 0.3mm,关键尺寸如果客户有明确要求,请沟通后在规格书中进行明确的标定。

原理图封装

WBR2D模组规格书

PCB封装图

WBR2D 可选用 直插 WBR2D模组规格书

生产指南

  1. 涂鸦出厂的邮票口封装模块必须由SMT机器贴片,并且拆开包装烧录固件后必须24小时内完成贴片,否则要重新抽真空包装,贴片前要对模块进行烘烤。 A.SMT贴片所需仪器或设备: a)回流焊贴片机; b)AOI检测仪; c)口径6-8mm吸嘴; B.烘烤所需仪器或设备: a)柜式烘烤箱; b)防静电耐高温托盘; c)防静电耐高温手套;
  2. 涂鸦出厂的模块存储条件如下: A.防潮袋必须储存在温度<30℃、湿度<70%RH的环境中。 B.干燥包装的产品,保质期为从包装密封之日起6个月的时间。 C.密封包装内装有湿度指示卡: WBR2D模组规格书

  3. 涂鸦出厂的模块需要烘烤,湿度指示卡及烘烤的几种情况如下所述: A.拆封时如果湿度指示卡读值30%、40%、50%色环均为蓝色,需要对模块进行持续烘烤2小时; B.拆封时如果湿度指示卡读取到30%色环变为粉色,需要对模块进行持续烘烤4小时; C.拆封时如果湿度指示卡读取到30%、40%色环变为粉色,需要对模块进行持续烘烤6小时; D.拆封时如果湿度指示卡读取到30%、40%、50%色环变为粉色,需要对模块进行持续烘烤12小时;

  4. 烘烤参数如下: A.烘烤温度:125±5℃; B.报警温度设定:130℃; C.自然条件下冷却<36℃后,即可进行SMT贴片; D.干燥次数:1次; E.若烘烤后超过12小时没有焊接,请再次进行烘烤;
  5. 如果拆封时间超过3个月,禁止使用SMT工艺焊接此批次模块,因为此PCB为沉金工艺,超过3个月后焊盘氧化严重,SMT贴片时极有可能导致虚焊、漏焊,由此带来的种种问题我司不承担相应责任;
  6. SMT贴片前,请对模块进行ESD(静电放电、静电释放)保护;
  7. 为了确保回流焊合格率,首次贴片请抽取10%产品进行目测、AOI检测,以确保炉温控制、器件吸附方式、摆放方式的合理性;之后的批量生产建议每小时抽取5-10片进行目测、AOI检测。

推荐炉温曲线

请根据回流焊曲线图进行SMT贴片,峰值温度245℃,回流焊温度曲线如下图所示:

WBR2D模组规格书

储存条件

WBR2D模组规格书

模块MOQ与包装信息

产品型号MOQ(pcs)出货包装方式每个卷盘存放模块数(pcs)每箱包装卷盘数(盘)
WBR2D4000载带卷盘10004

附录—声明

FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this 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.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

  • Reorient or relocate the receiving antenna.
  • Increase the separation between the equipment and receiver.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.

Radiation Exposure Statement

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled rolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body.

Important Note

This radio module must not installed to co-locate and operating simultaneously with other radios in host system except in accordance with FCC multi-transmitter product procedures. Additional testing and equipment authorization may be required to operating simultaneously with other radio.

The availability of some specific channels and/or operational frequency bands are country dependent and are firmware programmed at the factory to match the intended destination. The firmware setting is not accessible by the end user.

The host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. The final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed.

The end user manual shall include all required regulatory information/warning as shown in this manual, including: This product must be installed and operated with a minimum distance of 20 cm between the radiator and user body.

This device have got a FCC ID:2ANDL-WBR2D.The final end product must be labeled in a visible area with the following: “Contains Transmitter Module FCC ID: 2ANDL-WBR2D”

This device is intended only for OEM integrators under the following conditions: 1)The antenna must be installed such that 20cm is maintained between the antenna and users, and 2) The transmitter module may not be co-located with any other transmitter or antenna.

As long as 2 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed.

Declaration of Conformity European notice

WBR2D模组规格书

Hereby, Hangzhou Tuya Information Technology Co., Ltd declares that this module product is in compliance with essential requirements and other relevant provisions of Directive 2014/53/EU,2011/65/EU.A copy of the Declaration of conformity can be found at https://www.tuya.com

WBR2D模组规格书

This product must not be disposed of as normal household waste, in accordance with EU directive for waste electrical and electronic equipment (WEEE- 2012/19/EU). Instead,it should be disposed of by returning it to the point of sale, or to a municipal recycling collection point.

The device could be used with a separation distance of 20cm to the human body.

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