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 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 V1.2 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. The information provided herein is believed to be reliable. But production testing may not include testing of all parameters. Pairlink reserves the right to change information at any time without notification.
- 1 -
www.pairlink.com.cn All rights reserved Suzhou Pairlink Network Technology Ltd. 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.Peripheral Interface ..................................................................................................... - 4 -
3.Hardware Design and PCB layout ................................................................................ - 5 -
3.1.Pin assignment and Pin description .......................................................................... - 5 -
3.2.Reference Design .............................................................................................. - 6 -
3.3.Appearance and Dimensions ............................................................................ - 7 -
3.4.Module Layout Guideline .................................................................................. - 8 -
4.Welding Declaration ..................................................................................................... - 9 -
5.Federal Communications Commission (FCC) Interference Statement ...................... - 10 -
- 2 -
www.pairlink.com.cn All rights reserved Suzhou Pairlink Network Technology Ltd. Buffalo-DS531-B User Guide 1.Electrical Specifications 1.1.Absolute Ratings Parameter Power Supply(V) Storage temperature() Working temperature() ESD HBM ESD CDM Min.
-0.3V
-40
-40
-4KV
-500V Specification Max.
+3.6V
+125
+85
+4KV
+500V 1.2.Recommended Operating Conditions Parameter Specification Min. Typical Max. Power Supply(V) 1.8 Communication level(V) Working temperature()
-40 Consume TX Current
(mA) RX Current
(mA) Sleep Current
(uA) TX Power(dBm)
-19.5 Receive Sensitivity(dBm) 3.3 3.3 20 2 3.6
+85 3.5 2.2
+2.5
-94 Burn the module permanently if it exceeds +3.6V Human Body Model Charged Device Model Unit Note Can't communicate with 5V TTL level directly Industry Standard TX Power=+2.5dBm Software off period 1Mbps 1Mbps
- 3 -
www.pairlink.com.cn All rights reserved Suzhou Pairlink Network Technology Ltd. Buffalo-DS531-B User Guide 1.3.Physical Parameters Parameter Performance Note Distance Buffalo-DS531-B 30m Crystal Protocol Package IC Core OTP RAM ROM 32MHz Bluetooth 5.1 Patch DA14531-00000FX2 ARM Cortex-M0 32KB 48KB 144KB Data Transfer (BLE) Environment: Sunny and open Airspeed: 1Mbps Buffalo-DS531-B with PCB antenna Industry Standard Supported data rates: 1 Mbps Refer to section 4.3 PackageFCGQFN24 One-Time-Programmable EEPROM Buffalo-DS531-B:2Kbit Dimensions(mm) 16.3*12.0*2.4 Type:P24C02A L*W*H Antenna Type Buffalo-DS531-B On-board PCB antenna Antenna Gain
+0dbi On-board PCB antenna 2.Peripheral Interface 2 x UARTs (one with flow control) 1 x SPI interface with master configurable 1 x I2Cs interface 12 x GPIOs 4 x 10-bit ADC input 8 x PWMs interface 2 x general purpose timer
- 4 -
www.pairlink.com.cn All rights reserved Suzhou Pairlink Network Technology Ltd. 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 Power Supply Connect to Ground GPIO:P0_0 Reset signal (active high). INPUT/OUTPUT with selectable pull up/down resistor. General purpose I/O port bit or alternate function retention nodes. Contain mechanism during power down. state 1,15,16 8 6 2 3 4 5 7 9 10 11 12 13 14 VBAT GND P0_0 Reset P0_6 ADC2 P0_2 SWCLK ADC1 P0_10 SWDIO P0_11 P0_1 ADC0 P0_3 P0_9 BLE_RX P0_8 BLE_TX P0_5 P0_4 P0_7 ADC3 P P DIO DI DIO AI DIO DIO AI DIO DIO DIO DIO AI DIO DIO DIO DIO DIO DIO AI DIO AI I-PD I-PD I-PD I-PD I-PD I-PD I-PD I-PD I-PD I-PD I-PD I-PD I-PD Note: GPIO has integrated pull-up and pull-down resistors
- 5 -
www.pairlink.com.cn All rights reserved Suzhou Pairlink Network Technology Ltd. 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. 3:PIN6(P0_0/RESET) multiplexing module RESET, software can be configured as RESET function, internal pull-down by default.If need to configure the RESET function, must consult Pairlink for recommendations. 4:The Buffalo-DS531-B is TTL level, and the uart port can communicate directly with the 3.3V MCU. 5:Support GPIO super multiplexing function, WAKE_UP / UART / SPI / IIC / PWM / and other functions can be arbitrarily configured on GPIO. 6:Reserve P1 burning interface if the PCB board has enough space. 7:The application diagram is shown below.
- 6 -
www.pairlink.com.cn All rights reserved Suzhou Pairlink Network Technology Ltd. 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
- 7 -
www.pairlink.com.cn All rights reserved Suzhou Pairlink Network Technology Ltd. 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
- 8 -
www.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
- 9 -
www.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. This equipment generate, 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 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. 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. 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.
- 10 -
www.pairlink.com.cn All rights reserved Suzhou Pairlink Network Technology Ltd. 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. The OEM integrator has to be aware no to provide information to the end user regarding how to install or remove this RF module in the user manual of the end product with integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual. That separate approval is required for all other operating configurations, including portable configurations with respect to Part 2.1093 and different antenna configurations. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled This product may not be collocated or operated in conjunction with any other antenna or RF exposure warning environment. transmitter. This equipment must be installed and operated in accordance with provided instructions and the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be collocated or operating in conjunction with any other antenna or transmitter.
- 11 -
www.pairlink.com.cn All rights reserved Suzhou Pairlink Network Technology Ltd. Buffalo-DS531-B User Guide Industry Canada (IC) CAN ICES-3 (B)/NMB-3(B) This device complies with Industry Canadas 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. aux deux conditions suivantes:
Cetappareilestconforme la norme RSS d'Industrie Canada. Son fonctionnementestsujet
(1) ledispositif ne doit pas produire de brouillageprjudiciable, et
(2) cedispositifdoit accepter tout brouillagereu, y compris un brouillage susceptible de provoquer un fonctionnementindsirable. IMPORTANT NOTE:
Radiation Exposure Statement:
20cm between the radiator and your body. Dclarationd'exposition aux radiations:
This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance Cetquipementestconforme aux limitesd'exposition aux rayonnements IC tablies pour unenvironnement non contrl. Cetquipementdoittreinstalletutilis avec un minimum de 20cm de distance entre la source de rayonnement et votre corps. OEM Integration Instructions This device is intended only for OEM integrators under the following conditions The module can be used to installation in other host, and the transmitter module may not be co-located with any other transmit or antenna. The module shall be only used with the integral antenna(s) that has been originally tested and certified with this module. As long as 3 conditions above are met, further transmitter test will not be required. However, the
- 12 -
www.pairlink.com.cn All rights reserved Suzhou Pairlink Network Technology Ltd. OEM integrator is still responsible for testing their end-product for any additional compliance requirement with this module installed (for example,digital device emission, Buffalo-DS531-B User Guide PC peripheral requirements, etc.) IMPORTANT NOTE In the event that these conditions cannot be met (for example certain laptop configuration or co-location with another transmitter), then the FCC authorization for this module in combination with the host equipment is no longer considered valid and the FCC ID of the module cannot be used on the final product. In these and circumstance, the OEM integrator will be responsible for re-evaluating. The end product (including the transmitter) and obtaining a separate FCC authorization. The final end product must be labeled in a visible area with the following:
Contains Transmitter Module FCC ID:2AQV6BDS531. Antenna Specification:
Antenna Type Manufacturer Frequency Range Maximum Peak
(MHz) Antenna Gain(dBi) PCB Antenna N/A 2402 - 2480
-0.41dBi
- 13 -
www.pairlink.com.cn All rights reserved Suzhou Pairlink Network Technology Ltd. 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. Ce Module sans fil (IC:24210-BDS531) a t approuv par industrie Canada pour fonctionner avec les types dantennes numrs ci-dessous avec le gain maximal autoris indiqu. Les types dantenne non inclus dans cette liste, ayant un gain suprieur au gain maximum indiqu pour ce type, sont strictement interdits pour lutilisation avec ce dispositif. The Host Marketing Name (HMN) must be displayed (according to e-labelling requirements) or indicated at any location on the exterior of the host product or product packaging or product literature, which shall be available with the host product or online. Le nom de commercialisation de lhte (HMN) doit tre affich (conformment aux exigences dtiquetage lectronique) ou indiqu tout endroit lextrieur du produit hte ou de lemballage du produit ou de la documentation de produit, qui doit tre disponible avec le produit hte ou en ligne. The host product shall be properly labelled to identify the modules within the host product. The Innovation, Science and Economic Development Canada certification label of a module shall be clearly visible at all times when installed in the host product; otherwise, the host product must be labelled to display the Innovation, Science and Economic Development Canada certification number for the module, preceded by the word Contains or similar wording expressing the same meaning, as follows: Contains IC:24210-BDS531 Le produit hte doit tre correctement tiquet pour identifier les modules du produit hte. Le label de certification Innovation, Science et dveloppement conomique Canada dun
- 14 -
www.pairlink.com.cn All rights reserved Suzhou Pairlink Network Technology Ltd. module doit tre clairement visible tout moment lorsquil est install dans le produit hte;
Dans le cas contraire, le produit hte doit porter le numro de certification Innovation, Science et dveloppement conomique Canada pour le module, prcd du mot
"contient" ou dune formulation similaire exprimant la mme signification, Contient Buffalo-DS531-B User Guide IC:24210-BDS531 . Antenna Specification:
Antenna Type Manufacturer Frequency Range Maximum Peak
(MHz) Antenna Gain(dBi) PCB Antenna N/A 2402 - 2480
-0.41dBi
- 15 -
www.pairlink.com.cn All rights reserved Suzhou Pairlink Network Technology Ltd.