BT2L-A 模组规格书

更新时间:2024-06-14 08:07:40下载pdf

产品概述

BT2L-A 是由涂鸦智能开发的一款低功耗嵌入式的蓝牙模块。它主要由一个高集成度的蓝牙芯片 TLSR8253F512AT32 和少量的外围电路构成,内置了蓝牙网络通信协议栈和丰富的库函数。BT2L-A 还包含低功耗的 32 位 MCU、蓝牙5.0/2.4G Radio、4Mbits flash、48Kbyte SRAM 和 5 个可复用的 IO 口。

特点

  • 内置低功耗 32 位 MCU,可以兼作应用处理器。
    • 主频支持 48 MHz
  • 工作电压:3.0V-3.6V
  • 外设:5xPWM
  • 蓝牙 LE RF 特性
    • 兼容蓝牙 LE 4.2/5.0
    • 射频数据速率高达 2Mbps
    • TX 发射功率:+10dBm
    • RX 接收灵敏度:-94.5dBm@1Mbps
  • 内嵌硬件 AES 加密
  • 搭配板载 PCB 天线,天线增益 0.89dB
  • 工作温度:-20℃ 到 +105℃

主要应用领域

  • 智能 LED
  • 智能家居
  • 智能低功耗传感器

模块接口

尺寸封装

BT2L-A 共有 1 排引脚,引脚间距 2mm。
BT2L-A 尺寸大小:15±0.35mm (W)×17.4±0.35mm (L) ×2.8±0.15mm(H),其中 PCB 厚度 0.8mm±0.1 mm,如图所示:
BT2L-A 模组规格书BT2L-A 模组规格书

引脚定义

接口引脚定义如下表所示:

序号 符号 IO 类型 功能
1 B5 I/O 普通 IO 口,可做 LED 的驱动 PWM 输出,对应 IC 的 PB<5>
2 C2 I/O 普通 IO 口,可做 LED 的驱动 PWM 输出,对应 IC 的 PC<2>
3 D2 I/O 普通 IO 口,可做 LED 的驱动 PWM 输出,对应 IC 的 PD<2>
4 B4 I/O 普通 IO 口,可做 LED 的驱动 PWM 输出,对应 IC 的 PB<4>
5 C3 I/O 普通 IO 口,可做 LED 的驱动 PWM 输出,对应 IC 的 PC<3>
6 GND P 电源参考地
7 3V3 P 模块电源引脚

说明

  • P 表示电源引脚,I/O 表示输入输出引脚。
  • 如对 PWM 输出控制的灯色有自己的需求,请与我司商务联系。

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 -65 150
VCC 供电电压 -0.3 3.9 V
静电释放电压(人体模型) TAMB-25℃ - 2 KV
静电释放电压(机器模型) TAMB-25℃ - 0.5 KV

工作条件

参数 描述 最小值 典型值 最大值 单位
Ta 工作温度 -40 - 105
VCC 工作电压 3.0 3.3 3.6 V
VIL IO 低电平输入 VSS - VCC*0.3 V
VIH IO 高电平输入 VCC*0.7 - VCC V
VOL IO 低电平输出 VSS - VCC*0.1 V
VOH IO 高电平输出 VCC*0.9 - VCC V

工作模式下功耗

符号 条件 最大值(典型值) 单位
Itx 连续发送,11.5dBm输出功率 22.6 mA
Irx 连续接收 6.5 mA
IDC Mesh 联网工作状态下 Average 值 6.59 mA
IDC Mesh 联网工作状态下 Peak 值 24.9 mA
Ideepsleep1 深度休眠模式(保留16KBRAM) 1.2 μA
Ideepsleep2 深度休眠模式(不保留RAM) 0.4 μA

射频参数

基本射频特性

参数项 详细说明
工作频率 2.4GHz ISM band
无线标准 蓝牙 4.2/5.0
数据传输速率 1Mbps, 2Mbps
天线类型 板载 PCB 天线

RF 输出功率

参数项 最小值 典型值 最大值 单位
RF 平均输出功率 -21 10 11.5 dBm
20dB 调制信号带宽(1M) - 2500 - KHz

RF 接收灵敏度

参数项 最小值 典型值 最大值 单位
RX 灵敏度 1Mbps - -94.5 - dBm
频率偏移误差 1Mbps -250 - +300 KHz
同信道干扰抑制 - - -10 dB

天线信息

天线类型

BT2L-A 使用的是板载 PCB 天线,天线增益 0.89dBi。

降低天线干扰

为确保 RF 性能的最优化,建议模块天线部分和其他金属件的距离至少保持 15mm 以上。如果使用环境的天线周边包裹金属材料等,会极大地衰减无线信号,进而恶化射频性能。成品设计时,注意给天线区域预留出足够的空间。

封装信息及生产指导

机械尺寸和背面焊盘尺寸

BT2L-A 模组规格书

说明:默认的模组外形尺寸公差为 ±0.35 mm,关键尺寸公差 ±0.1 mm。

生产指南

  • 涂鸦出厂的邮票口封装模组必须由 SMT 机器贴片,拆开包装后必须在 24 小时内完成焊接。否则,需放置在湿度不超过 10%RH 的干燥柜内,或重新进行真空包装并记录暴露时间,总暴露时间不超过 168 小时。
    • SMT 贴片所需仪器或设备:
      • 贴片机
      • SPI
      • 回流焊
      • 炉温测试仪
      • AOI
    • 烘烤所需仪器或设备:
      • 柜式烘烤箱
      • 防静电耐高温托盘
      • 防静电耐高温手套
  • 涂鸦出厂的模组存储条件如下:
    • 防潮袋必须储存在温度 <40℃、湿度 <90%RH 的环境中。
    • 干燥包装的产品,保质期为从包装密封之日起 12 个月的时间。
    • 密封包装内装有湿度指示卡:
      BT2L-A 模组规格书
  • 涂鸦出厂的模组当出现可能受潮的情况下需要进行烘烤:
    • 拆封前发现真空包装袋破损。
    • 拆封后发现包装袋内没有湿度指示卡。
    • 拆封后如果湿度指示卡读取到 10% 及以上色环变为粉色。
    • 拆封后总暴露时间超过 168 小时。
    • 从首次密封包装之日起超过 12 个月。
  • 烘烤参数如下:
    烘烤参数如下:
    • 烘烤温度:卷盘包装 40℃,小于等于 5%RH。托盘包装 125℃,小于等于 5%RH(耐高温托盘非吸塑盒拖盘)。
    • 烘烤时间:卷盘包装 168 小时,托盘包装 12 小时。
    • 报警温度设定:卷盘包装 50℃,托盘包装 135℃。
    • 自然条件下冷却到 36℃ 以下后,即可进行生产。
    • 若烘烤后暴露时间大于 168 小时没有使用完,请再次进行烘烤。
    • 如果暴露时间超过 168 小时未经过烘烤,不建议使用波峰焊接工艺焊接此批次模组,因模组为 3 级湿敏器件超过允许的暴露时间很可能受潮,进行高温焊接时可能导致器件失效或焊接不良。
  • 在整个生产过程中请对模组进行静电放电(ESD)保护。
  • 为了确保产品合格率,建议使用 SPI 和 AOI 测试设备来监控锡膏印刷和贴装品质。

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℃。以 SAC305 合金焊膏为例,回流焊温度曲线如下图所示:

BT2L-A 模组规格书

曲线图示图标说明:

  • A:温度轴

  • B:时间轴

  • C:合金液相线温度:217-220℃

  • D:升温斜率:1-3℃/s

  • E:恒温时间:60-120s,恒温温度:150-200℃

  • F:液相线以上时间:50-70s

  • G:峰值温度:235-245℃

  • H:降温斜率:1-4℃/s

    说明:以上推荐曲线以 SAC305 合金焊膏为例。其他合金焊膏请按焊膏规格书推荐炉温曲线设置。

存储条件

BT2L-A 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 每盘数量 每箱包装卷盘数(盘)
BT2L-A 4000 载带卷盘 1000 4

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 complyAppth 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-BT2L-A.The final end product must be labeled in a viApple area with the following: “Contains Transmitter Module FCC ID: 2ANDL-BT2L-A”

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

BT2L-A 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

BT2L-A 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.