2ABRU-BLEM301BDE Bluetooth 5.1 Low Energy Module

BDE-BLEM301 Bluetooth 5.1 LE Module Datasheet [email protected] BDE Technology Inc. 1 / 24 General Description BDE-BLEM301 is a highly integrated Bluetooth 5.1 Low Energy Module based on Dialog ultra-low power DA14531 SoC. It comprises a Cortex® M0+ MCU, on board Flash memory, Bluetooth 5.1 Low Energy radio, a high efficiency PCB antenna, BT 5.1 stack, profiles and applications in a single module. The module can be used with or without an external MCU. It also offers flexible hardware interfaces for sensor applications. It enables ultra-low power connectivity and data transfer for the applications that are sensitive to power consumption, size and cost. Key Features  Bluetooth  Compatible with Bluetooth v5.1, ETSI EN 300 328 and EN 300 440 Class 2 (Europe), FCC CFR47 Part 15 (US)  Supports up to 3 BLE connections  Processing and memories  16 MHz 32-bit Arm® Cortex® M0+ with SWD interface  128 Kbytes internal FLASH  48 Kbytes RAM  144 Kbytes ROM  32 Kbytes OTP  Current Consumption  2 mA RX at VBAT=3V  4 mA TX at VBAT=3V and 0 dBm  1.8 uA at sleep with all RAM retained  Radio  Programmable RF transmit power from -19 to +2.2 dBm  -93 dBm receiver sensitivity  Interfaces  Quadrature decoder with 3 channels  4 channel 11-bit ENOB ADC  2 general purpose timers with PWM capabilities  Built in temperature sensor  9 GPIOs  SPI  2 x UART, 1wire UART support  I2C  Power Management  Operating range (1.8V - 3.3V)  Inrush current control  Other  Real Time Clock  Packaging  12.5 mm x 14.5 mm x 2.1 mm package  Module Software Development Kit  Configurable DSPS  Codeless v2.0  SDK6 support  Module Software Tools  Flash/OTP programmer  SUOTA support  Battery Life Estimation  Data Rate Monitoring  Real-Time Power Profiling  Production Line Testing  Standards Conformance  BQB  ETSI EN 300 328 and EN 300 440 Class 2 (Europe)  FCC CFR47 Part 15 (US)  Compatible with DA14531MOD Applications  Beacons  Remote Controls  Proximity tags  Low Power Sensors  Commissioning/Provisioning  Toys  Serial port transmission  Smart home  Smart meters  Smart medical devices BDE-BLEM301 Bluetooth 5.1 LE Module Datasheet [email protected] BDE Technology Inc. 2 / 24 Contents General Description .................................................................................................................................. 1 Key Features .............................................................................................................................................. 1 Applications ............................................................................................................................................... 1 Contents .................................................................................................................................................... 2 1. References ......................................................................................................................................... 3 2. Block Diagram ................................................................................................................................... 4 3. Pinout ................................................................................................................................................ 5 4. Characteristics ................................................................................................................................... 7 4.1. Absolute Maximum Ratings ................................................................................................. 7 4.2. Recommended Operating Conditions .................................................................................. 7 4.3. Device Characteristics .......................................................................................................... 7 5. Mechanical Specifications ............................................................................................................... 11 5.1. Dimensions ......................................................................................................................... 11 5.2. PCB Footprint ..................................................................................................................... 12 5.3. Marking .............................................................................................................................. 12 6. Packaging Information .................................................................................................................... 13 6.1. Tape & Reel......................................................................................................................... 13 6.2. Labeling .............................................................................................................................. 13 7. Application Information .................................................................................................................. 13 8. Design Guidelines ............................................................................................................................ 14 8.1. Placement........................................................................................................................... 14 8.2. Antenna Graphs .................................................................................................................. 17 8.3. Radiation Pattern ............................................................................................................... 20 9. Soldering ......................................................................................................................................... 22 10. Ordering Information .................................................................................................................. 22 11. Regulatory Information ..........................................................................................................…

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Guangzhou BDE Technology Inc. RE FCC ID: 2ABRU-BLEM301 To the certification reviewer: We are hereby applying for full modular approval of the above-referenced FCC ID, based on compliance with all of the criteria as detailed below. Sincerely, Jacky Tian Part 15 Unlicensed Single Modular Transmitter Approval Justification per 15.212 Requirement per 15.212 reference (i) The radio elements of the modular transmitter must have their own RF shielding. Shielding is provided by a metal cover over the circuitry. (ii) The modular transmitter must have buffered modulation/data inputs (if such inputs are provided. All modulation and data inputs are buffered by circuitry on the transmitter chip. (iii) The modular transmitter must have its own power supply regulation. Power supply regulation is provided by circuitry on the transmitter chip. (iv) The modular transmitter must comply with the antenna and transmission system requirements of §§ 15.203, 15.204(b) and 15.204(c). The antenna is permanently attached. (v) The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing for compliance with Part 15 parameters. Testing was performed with the module extended outside of the host on a special extender board, as shown in the test setup photos. / Testing was performed in a stand-alone configuration as shown in the test setup photos. (vi) The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number. If the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. A sample of the host label is provided as an exhibit, showing the FCC identifier of the module. Guangzhou BDE Technology Inc. (vii) The modular transmitter must comply with any specific rules or operating requirements that ordinarily apply to a complete transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. The module complies fully with the operating requirements of Part 15 section [...] as demonstrated in the test report exhibit. (viii) The modular transmitter must comply with any applicable RF exposure requirements in its final configuration. This module operates under Part 15 section [15.247], which s exempt from RF exposure evaluation owing to the very low operating power:

External Photos TOP VIEW OF EUT BOTTOM VIEW OF EUT FRONT VIEW OF EUT BACK VIEW OF EUT LEFT VIEW OF EUT RIGHT VIEW OF EUT

FCC ID Label Location FCC ID:2ABRU-BLEM301

Internal Photos VIEW OF EUT (open) VIEW OF EUT (Local) Antenna

Guangzhou BDE Technology Inc. Declaration concerning Antenna Specification It is hereby declared that the product Model No.: BDE-BLEM301 FCC ID: 2ABRU-BLEM301 fulfills the requirement in FCC test relating to the antenna type. The device specified above confirms to the FCC recommendations for internal antenna type(s) described below: Type of antenna: PCB Antenna Gain of the antenna: 2.9 dBi Frequency range: 2402-2480 MHz The mounting of the antenna is fixed to the radio module and no other antenna should be used. Company name: Guangzhou BDE Technology Inc. Address: B2-403, ChuangYi Building, 162 Science Avenue, Huangpu District, Guangzhou, China Place: Guangzhou Date: 2020-11-18 Signature:

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description BDE Bluetooth 5.1 Low Energy Module Model Name BDE-BLEM301 FCC ID 2ABRU-BLEM301 2. EVALUATION METHOD According to 447498 D01 General RF Exposure Guidance v05 The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. Where f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation 3. CALCULATION BLE: P t = 1.611dBm=1.45mW The value of the Maximum output power P t is referred to the test report of the CFR47 §15.247. The result for RF exposure evaluation SAR=(1.45mW /5mm) .[√2.480GHz)]= 0.46<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. 4. CONCLUSION The SAR evaluation is not required.

Page 1 of 49 FCC Test Report Report No.: AGC02390200502FE02 FCC ID : 2ABRU-BLEM301 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : BDE Bluetooth 5.1 Low Energy Module BRAND NAME : BDE MODEL NAME : BDE-BLEM301 APPLICANT : Guangzhou BDE Technology Inc. DATE OF ISSUE : Nov. 17, 2020 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC02390200502FE02 Page 2 of 49 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Nov. 17, 2020 Valid Initial Release Report No.: AGC02390200502FE02 Page 3 of 49 TABLE OF CONTENTS 1. VERIFICATION OF COMPLIANCE ............................................................................................................... 5 2. GENERAL INFORMATION ............................................................................................................................ 6 2.1. PRODUCT DESCRIPTION ...................................................................................................................... 6 2.2. TABLE OF CARRIER FREQUENCYS ..................................................................................................... 6 2.3. RELATED SUBMITTAL(S)/GRANT(S) .................................................................................................... 7 2.4. TEST METHODOLOGY ........................................................................................................................... 7 2.5. SPECIAL ACCESSORIES ....................................................................................................................... 7 2.6. EQUIPMENT MODIFICATIONS .............................................................................................................. 7 2.7. ANTENNA REQUIREMENT ..................................................................................................................... 7 3. MEASUREMENT UNCERTAINTY ................................................................................................................. 8 4. DESCRIPTION OF TEST MODES ................................................................................................................. 9 5. SYSTEM TEST CONFIGURATION ............................................................................................................. 10 5.1. CONFIGURATION OF TESTED SYSTEM ............................................................................................. 10 5.2. EQUIPMENT USED IN TESTED SYSTEM ............................................................................................ 10 5.3. SUMMARY OF TEST RESULTS ............................................................................................................ 10 6. TEST FACILITY ........................................................................................................................................... 11 7. PEAK OUTPUT POWER ............................................................................................................................. 13 7.1. MEASUREMENT PROCEDURE ........................................................................................................... 13 7.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................. 13 7.3. LIMITS AND MEASUREMENT RESULT ............................................................................................... 14 8. 6 DB BANDWIDTH ...................................................................................................................................... 16 8.1. MEASUREMENT PROCEDURE ........................................................................................................... 16 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................. 16 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................. 16 9. CONDUCTED SPURIOUS EMISSION ........................................................................................................ 18 9.1. MEASUREMENT PROCEDURE ........................................................................................................... 18 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................. 18 9.3. MEASUREMENT EQUIPMENT USED .................................................................................................. 18 9.4. LIMITS AND MEASUREMENT RESULT ............................................................................................... 18 10. MAXIMUM CONDUCTED OUTPUT POWER SPECTRAL DENSITY ....................................................... 26 10.1. MEASUREMENT PROCEDURE ......................................................................................................... 26 10.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................ 26 10.3. MEASUREMENT EQUIPMENT USED ................................................................................................ 26 10.4. LIMITS AND MEASUREMENT RESULT ............................................................................................. 26 11. RADIATED EMISSION ............................................................................................................................... 28 11.1. MEASUREMENT PROCEDURE ......................................................................................................... 28 11.2. TEST SETUP ....................................................................................................................................... 29 11.3. LIMITS AND MEASUREMENT RESULT ............................................................................................. 30 11.4. TEST RESULT ............................................................................................…

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Test Setup Photos RADIATED EMISSION TEST SETUP BELOW 1GHZ RADIATED EMISSION TEST SETUP ABOVE 1GHZ Line CONDUCTED EMISSION TEST SETUP CONDUCTED EMISSION TEST SETUP