Buffalo-DS531-B User Guide Buffalo-DS531-B User Guide Project:Buffalo-DS531 Bluetooth 5.1 BLE module Module name: Buffalo-DS531-B Designed:Suzhou Pairlink Network Technology Ltd. Version V1.0 V1.1 V1.2 Note Create 1:Update Module Appearance 2:Add FCC&IC Statement Modify FCC&IC Statement Date 2021/12/17 2022/06/24 2022/06/30 This document contains information that is proprietary to Pairlink . This document is commercially confidential and must NOT be disclosed to third parties without prior consent.
Buffalo-DS531-B User Guide Contents 1.Electrical Specifications................................................................................................ - 3 1.1.Absolute Ratings ............................................................................................... - 3 1.2.Recommended Operating Conditions............................................................... - 3 1.3.Physical Parameters .......................................................................................... - 4 2.
Buffalo-DS531-B User Guide 1.Electrical Specifications 1.1.Absolute Ratings Parameter Specification Unit Min. Max. Power Supply(V) -0.3V +3.6V Storage temperature(℃) -40 +125 Working temperature(℃) -40 +85 ESD HBM -4KV +4KV Human Body Model ESD CDM -500V +500V Charged Device Model Burn the module permanently if it exceeds +3.6V 1.2.Recommended Operating Conditions Parameter Power Supply(V) Specification Min. Typical Max. 1.8 3.3 3.
Buffalo-DS531-B User Guide 1.3.Physical Parameters Parameter Performance Note Distance Buffalo-DS531-B Crystal 32MHz Industry Standard Protocol Bluetooth 5.1 Supported data rates: 1 Mbps Package Patch Refer to section 4.3 IC DA14531-00000FX2 Package:FCGQFN24 Core ARM Cortex-M0 OTP 32KB RAM 48KB ROM 144KB EEPROM Buffalo-DS531-B:2Kbit Type:P24C02A Dimensions(mm) 16.3*12.0*2.
Buffalo-DS531-B User Guide 3.Hardware Design and PCB layout 3.1.Pin assignment and Pin description Buffalo-DS531-B Pin definition can refer to Figure 1. Table 1: Module Pin Description Pin Number Pin Name I/O RESET STATE Alternate Function Description 8 VBAT P Power Supply 1,15,16 GND P Connect to Ground P0_0 DIO I-PD GPIO:P0_0 Reset DI I-PD Reset signal (active high).
Buffalo-DS531-B User Guide 3.2.Reference Design The latest schematic and design examples, bill of material, and layout file are available from original developer . Contact us for details. Figure 1: Module Reference Design Circuit Description 1:VBAT supply voltage value is 1.80V-3.60V. 2:PIN10 (P0_9 / UART_RX), PIN11(P0.8 / UART_TX) is configured as the module's UART interface by default.
Buffalo-DS531-B User Guide 3.3.Appearance and Dimensions Figure 2 shows the size of the module.The components and prominent structure are not allowed put in this size range(16.3mm*12.0mm*2.4mm). The following land pattern size is recommended for user board design. However, user can modify it according PCB soldering conditions. Sufficient examination is necessary if use the modified land pattern. Figure 2: Mechanical Information -7www.pairlink.com.
Buffalo-DS531-B User Guide 3.4.Module Layout Guideline The layout on user PCB should be designed according to the following guideline. When the module is placed on the PCB, it must be ensured that the RF antenna area (2 times the width of the module) is hollow or suspended, and there must be no traces, vias or copper. Figure 3: Module Placement -8www.pairlink.com.cn All rights reserved Suzhou Pairlink Network Technology Ltd.
Buffalo-DS531-B User Guide 4.Welding Declaration The Buffalo-DS531-B module only supports one reflow soldering. Our company is not responsible for the module failure caused by multiple reflow soldering. Figure 4:Reflow Soldering Temperature Figure 5:Reflow Soldering Curve -9www.pairlink.com.cn All rights reserved Suzhou Pairlink Network Technology Ltd.
Buffalo-DS531-B User Guide 5.Federal Communications Commission (FCC) Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
Buffalo-DS531-B User Guide The module is limited to OEM installation only. This product is mounted inside of the end product only by professional installers OEM. They use this module with changing the power and control signal setting by software of end product within the scope of this application. End user cannot change this setting.
Buffalo-DS531-B User Guide Industry Canada (IC) CAN ICES-3 (B)/NMB-3(B) This device complies with Industry Canada’s licence-exempt RSSs. 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. Cetappareilestconforme à la norme RSS d'Industrie Canada.
Buffalo-DS531-B User Guide OEM integrator is still responsible for testing their end-product for any additional compliance requirement with this module installed (for example,digital device emission, PC peripheral requirements, etc.
Buffalo-DS531-B User Guide IMPORTANT NOTE: This Wireless Module (IC:24210-BDS531) has been approved by Industry Canada to operate with the antenna types listed below with the maximum permissible gain indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device.
Buffalo-DS531-B User Guide module doit être clairement visible à tout moment lorsqu’il est installé dans le produit hôte; Dans le cas contraire, le produit hôte doit porter le numéro de certification Innovation, Science et développement économique Canada pour le module, précédé du mot "contient" ou d’une formulation similaire exprimant la même signification, Contient IC:24210-BDS531 . Antenna Specification: Antenna Type PCB Antenna Frequency Range Maximum Peak (MHz) Antenna Gain(dBi) 2402 - 2480 -0.