Global Intelligent Platform Product Manual WBR3 Datasheet Tuya WBR3 Wi-Fi and Bluetooth Version: 2.0.0 Date: 2019-10-21 No.: 0000000001 1. Product Overview WBR3 is a low-power embedded Wi-Fi and Bluetooth module that Tuya has developed. It consists of a highly integrated RF chip (RTL8720CF) with an embedded Wi-Fi network protocol stack and robust library functions.
WBR3 Datasheet 1.1 Features Embedded low-power KM4 MCU, which can also function as an application processor Clock rate: 100 MHz Working voltage: 3.0 V to 3.6 V Peripherals: nine GPIOs, one universal asynchronous receiver/transmitter (UART), and one Log_TX pin Wi-Fi connectivity 802.11b/g/n20 Channels 1 to 14 at 2.4 GHz Compatible with Bluetooth low energy (BLE) 4.2(Up to +9dBm EIPR output power) WPA and WPA2 security modes Up to +20 dBm EIRP output power in 802.
WBR3 Datasheet Change History No. 1 Date 2019-10-21 Change Description This is the first release. 3 Version After Change 2.0.
WBR3 Datasheet Contents 1. Product Overview........................................................................................................................ 1 1.1 Features.............................................................................................................................. 2 1.2 Applications........................................................................................................................ 2 2 Module Interfaces..............................................
WBR3 Datasheet Tables Table 2-1 WBR3 interface pins...................................................................................................... 6 Table 3-1 Absolute electrical parameters..................................................................................... 8 Table 3-2 Normal electrical conditions..........................................................................................8 Table 3-3 Power consumption during constant transmission.........................................
WBR3 Datasheet 2 Module Interfaces 2.1 Dimensions and Footprint WBR3 has two rows of 16 pins (2 x 8) with a 2 mm pin spacing. The WBR3 dimensions (H x W x D) are 2.9±0.15 mm x 16±0.35 mm x 24±0.35 mm. Figure 2-1 shows the WBR3 front and rear views. Figure 2-1 WBR3 front and rear views 2.2 Interface Pin Definition Table 2-1 WBR3 interface pins Pin No.
WBR3 Datasheet Pin No. Symbol I/O Type Function connected to pin 21 on the internal IC 3 EN I/O Enable pin, which is active at a high level (The pin has been pulled up and is externally controllable.
WBR3 Datasheet 3 Electrical Parameters 3.1 Absolute Electrical Parameters Table 3-1 Absolute electrical parameters Parameter Description Minimum Value Maximum Value Unit Ts Storage temperature –40 105 °C VDD Power supply voltage –0.3 3.6 V Static electricity voltage (human body model) Tamb = 25°C N/A 2 kV Static electricity voltage (machine model) Tamb = 25°C N/A 0.5 kV 3.
WBR3 Datasheet Parameter Description Minimum Value Typical Value Maximum Value Unit output Imax I/O drive current N/A N/A 16 mA Cpad Input pin capacitance N/A 2 N/A pF 3.3 RF Current Consumption Table 3-3 Power consumption during constant transmission Symbol Mode Power Typical Value Peak Value Unit IRF 802.11b 17 dBm 217 268 mA IRF 11 Mbit/s 18 dBm 231 283 mA IRF 802.11g 15 dBm 159 188 mA IRF 54 Mbit/s 17.5 dBm 177 213 mA IRF 802.
WBR3 Datasheet 3.4 Working Current Table 3-5 WBR3 working current Working Mode Working Status (Ta = 25°C) Typical Value Peak Value Unit EZ The module is in EZ mode, and the Wi-Fi indicator blinks quickly. 75 324 mA Connected and idle The module is connected to the network, and the Wi-Fi indicator is steady on. 64 314 mA Connected and operating The module is connected to the network, and the Wi-Fi indicator is steady on.
WBR3 Datasheet 4.2 TX Performance Table 4-2 Performance during constant transmission Parameter Minimum Value Typical Value Maximum Value Unit Average RF output power, 802.11b CCK mode 1 Mbit/s N/A 17.5 N/A dBm Average RF output power, 802.11g OFDM mode 54 Mbit/s N/A 14.5 N/A dBm Average RF output power, 802.11n OFDM mode MCS7 N/A 13.5 N/A dBm –20 N/A +20 ppm EVM under 802.11b CCK, 11 Mbit/s, 17.5 dBm –10 dB EVM under 802.11g OFDM, 54 Mbit/s, 14.5 dBm –29 dB EVM under 802.
WBR3 Datasheet 5 Antenna Information 5.1 Antenna Type WBR3 uses an onboard PCB antenna with a gain of 2.5 dBi. 5.2 Antenna Interference Reduction To ensure optimal Wi-Fi performance when the Wi-Fi module uses an onboard PCB antenna, it is recommended that the antenna be at least 15 mm away from other metal parts. 6 Packaging Information and Production Instructions 6.1 Mechanical Dimensions The PCB dimensions (H x W x D) are 0.8±0.1 mm x 16±0.35 mm x 24±0.35 mm.
WBR3 Datasheet Figure 6-1 WBR3 mechanical dimensions Figure 6-2 Side view Note: The default dimensional tolerance is ±0.35 mm. If a customer has other requirements, clearly specify them in the datasheet after communication.
WBR3 Datasheet 6.
WBR3 Datasheet Figure 6-4 Layout of the PCB to which WBR3 applies 6.3 Production Instructions 1. Use an SMT placement machine to mount the stamp hole module that Tuya produces onto the PCB within 24 hours after the module is unpacked and the firmware is burned. If not, vacuum pack the module again. Bake the module before mounting it onto the PCB. (1) SMT placement equipment i. Reflow soldering machine ii. Automated optical inspection (AOI) equipment iii.
WBR3 Datasheet 2. ii. Anti-static heat-resistant trays iii. Anti-static heat-resistant gloves Storage conditions for a delivered module are as follows: (1) The moisture-proof bag is placed in an environment where the temperature is below 30°C and the relative humidity is lower than 70%. (2) The shelf life of a dry-packaged product is six months from the date when the product is packaged and sealed. (3) The package contains a humidity indicator card (HIC). Figure 6-5 HIC for WBR3 3.
WBR3 Datasheet exposed to the air for over three months, they will be oxidized severely and dry joints or solder skips may occur. Tuya is not liable for such problems and consequences. 6. Before SMT placement, take electrostatic discharge (ESD) protective measures. 7. To reduce the reflow defect rate, draw 10% of the products for visual inspection and AOI before first SMT placement to determine a proper oven temperature and component placement method.
WBR3 Datasheet 6.
WBR3 Datasheet 7 MOQ and Packing Information 19
WBR3 Datasheet 8 Appendix: Statement Federal Communications Commission (FCC) Declaration of Conformity 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.
WBR3 Datasheet 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.
