FCC ID: X8WBT840N Bluetooth 5.3 Module

BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 BluNor BT840N and BT840NE are powerful, highly flexible, ultra long range Bluetooth Low Energy (BLE) modules using Nordic nRF52840 SoC and nRF21540 power amplifier. With 64 MHz ARM CortexTM M4F MCU, embedded 2.4GHz multi-protocol transceiver, and various antenna solution. It allows faster time to market with reduced development cost. No external component needed to minimize host PCB area: Both 32 MHz and 32.768 KHz, -40oC to +105oC, 20 PPM crystals are integrated. The N (BT840N) series module is footprint compatible with the Fanstel X series module (BT840X) using a Skyworks PA. The nRF21540 PA can be controlled using commands through SPI interface. BT840NE has both a PCB antenna and an u.FL connector. BT840N, BT840NE, BT840NEE nRF52840 QIAA, 64 MHz Cortex M4F 1MB flash, 256 KB RAM 39 GPIO pins BT840N: a high performance PCB antenna BT840NE: a high performance PCB antenna + an Common Specifications Q D I D : 1 1 9 5 1 7 , 1 8 2 6 2 6 A p p l i c a t i o n E x a m p l e s B L E - L T E M . 2 m o d u l e B L E t o L T E g a t e w a y s u.FL connector. Model Summaries module SoC Size, mm 32M,32.768kHz crystals DCDC inductors,VDD,VDDH BT Antenna Max TX, conducted Max TX, radiated Operating temp. FCC ID ISED ID CE, RCM TELEC Evaluation board Availability BT840N nRF52840 15x29.9x2.0 Integrated Integrated PA+PCB

-40oC to +85oC BT840NE nRF52840 15x29.9x2.0 Integrated Integrated PA+PCB+u.FL

-40oC to +85oC EV-BT840NE EV-BT840NE 1 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 Table Of Contents 1. Introduction ....................................................................................................................................................... 3 BT840N, BT840NE Block Diagram ................................................................................................................... 3 2. Codes Development Using Nordic Tools .......................................................................................................... 5 Over-The-Air DFU ............................................................................................................................................. 5 nRF Connect SDK ............................................................................................................................................ 5 Development Tools ........................................................................................................................................... 5 3. Product Descriptions ......................................................................................................................................... 6 Mechanical Drawings ........................................................................................................................................ 6 Pin Assignments of BT840N ............................................................................................................................. 8 Pin Functions .................................................................................................................................................. 10 Mounting BT840N on the Host PCB ............................................................................................................... 12 Host Board Design for Low Cost or Long Range ............................................................................................ 13 Control Nordic nRF21540 Power Amplifier ..................................................................................................... 14 Setting for BT833N and BT840N ................................................................................................................. 14 4. BT40F Evaluation Board ................................................................................................................................. 14 Nordic Development Tools .............................................................................................................................. 16 Android OS Apps ............................................................................................................................................ 16 iOS Apps ......................................................................................................................................................... 16 EV-BT40NE EvaluationBoard Schematics .................................................................................................... 17 Suggestion for Battery Power Application ....................................................................................................... 19 5. Miscellaneous ................................................................................................................................................. 20 Soldering Temperature-Time Profile for Re-Flow Soldering ........................................................................... 20 Cautions, Design Notes, and Installation Notes .............................................................................................. 20 Packaging and Lot Number ............................................................................................................................ 24 FCC Label ....................................................................................................................................................... 24 Revision History .................................................................................................................................................. 26 Contact Us .......................................................................................................................................................... 27 2 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 1. Introduction A Nordic nRF21540 provide amplification for the transmitter and the receiver of nRF52840. BT840N, BT840NE Block Diagram A Nordic nRF21540 is integrated with an nRF52840 in BT840N, BT840NE, and BT840NEE.This series of modules is referred as BT840N. Three antenna options are available. BT840N with a high performance PCB antenna. BT840NE with a high performance PCB antenna and an u.FL connector for external connector. Specifications:

nRF52840 QIAA, ARM Cortex M4F, 64 MHz ARM TrustZone Cryptocell-310 co-processor nRF21540 power amplifier. Complete RF solution with integrated antenna BLE 5 data rate: 2Mbps, 1Mbps, 500kbps, 125kbps. IEEE 802.15.4 data rate: 250 Kbps 2.4 GHz proprietary data rate: 2 Mbps, 1 Mbps DC-DC converter, inductors on board. Serial Wire Debug (SWD) Nordic SoftDevice Ready Over-the-Air (OTA) firmware update Flash/RAM: 1MB/256KB. 39 General purpose I/O pins USB 2.0 full speed (12 Mbps) controller QSPI 32 MHz interface High speed 32 MHz SPI Type 2 NFC-A tag with wake-on field, Touch-to-pair support 3 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 Programmable peripheral interconnect (PPI) 12 bit/200 Ksps ADC, 8 configurable channels with programmable gain 64 level comparator 15 level comparator with wake-up from OFF. 4x4-channel pulse width modulator (PWM) Audio peripherals: I2S, digital microphone interface (PDM) 5 x 32 bit timers with counter mode Up to 4x SPI masters/3x SPI slaves Up to 2x I2C compatible 2-wire masters/slaves 2x UART (CTS/RTS) Quadrature Demodulator (QDEC) 3x real time counters (RTC) 128-bit AES HW encryption SoC Receiver Sensitivity: -96 dBm at 1Mbps SoC TX power: programmable +8dBm to -20dBm. Hybrid pins: 16 castellated and 45 LGA. Operation voltage: 3.3V, regulated. Current consumption: to be measured. Operation temperature: - 4 0 C t o + 8 5 C Q D I D : 1 0 8 6 2 1 , 1 8 2 6 2 6 4 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 2. Codes Development Using Nordic Tools Development tools from Nordic and other third party development tools recommended by Nordic should be used. Over-The-Air DFU All modules are supported by an Over-The-Air Device Firmware Upgrade (OTA DFU) feature. This allows for in the field updates of application software and SoftDevice. nRF Connect SDK nRF Connect SDK is a scalable and unified software development kit for building products based on all our nRF52, nRF53 and nRF91 Series wireless devices. It offers developers an extensible framework for building size-optimized software for memory-constrained devices as well as powerful and complex software for more advanced devices and applications. It integrates the Zephyr RTOS and a wide range of samples, application protocols, protocol stacks, libraries and hardware drivers. For developing Bluetooth Low Energy, Thread and Zigbee products, the nRF Connect SDK contains all needed software, including protocol stacks. For developing cellular IoT products it contains everything except the LTE modem firmware that must be downloaded separately from the nRF9160 SiP product page. See the cellular IoT software for more details. nRF Connect SDK also offers an unique integration of HomeKit Accessory Development Kit for developing products using both HomeKit over Thread and HomeKit over Bluetooth Low Energy. It is a highly optimized solution that enables battery-powered products with both the HomeKit Accessory Protocol (HAP) and application firmware running on a single chip. MFi licensees can get access to the HomeKit repository by contacting us via Nordic DevZone private ticket. nRF Connect SDK offers a single code base for all our devices and software components. It simplifies porting modules, libraries and drivers from one application to another, thus reducing development time. By enabling developers to pick and choose the essential software components for their application, high memory efficiency is guaranteed. nRF Connect SDK is publicly hosted on GitHub, offers source code management with Git and has free SEGGER Embedded Studio IDE support. Nordic runs continuous integration tests on the nRF Connect SDK code to ensure robust and secure production quality code. Development Tools Nordic Semiconductor provides a complete range of hardware and software development tools for the nRF53 Series devices. nRF53 DK board is recommended for firmware development. Nordic software development tools can be downloaded. 5 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 3. Product Descriptions Mechanical Drawings Two types of pins are available to meet different application requirements. 16 castellated pins for application needing limited number of IOs. SMT equipment is not required for soldering castellated pins. 45 LGA (Land Grid Array) pins to access all 48 GPIOs of nRF52840 when needed. The following is BT840N mechanical drawings, top view. 6 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 The following is BT840NE mechanical drawing, top view. 7 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 Pin Assignments of BT840N The followings are pin assignment of BT840N. Pin functions are in a table in next section. Please refer to Nordic nRF5340 Product Specifications for detailed descriptions and features supported. Pin assignments are below. Firmware configuration is required to upgrade module on the PCB. 8 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 9 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 Pin Functions BT840N/NE uses 9 GPIO pins to control the power amplifier, nRF21540. These 9 pins in red color are also available for external connection. Please avoid possible signal conflict if you use them for other IO functions. BT840N pin#

52840 pin#

1 G1 2 H2 3 D2 4 F2 5 A12 6 B13 7 L24 8 J24 9 B1 10 B7 11 T2 12 AD22 13 AD8 14 AC13 15 AA24 16 AC24 Z0 Z1 Z2 Z3 Z4 Z5 Z6 A0 A1 A2 A3 A4 A5 A6 B0 B1 B2 B19 B17 A16 B15 A14 A20 R24 B11 A10 J1 K2 M2 P2 AC21 B9 pin name P0.26/SDA P0.27/SCL NC NC P0.02/AIN0 P0.03/AIN1 P0.09/NFC1 P0.10/NFC2 VDD GND P0.11 P1.00 P0.13 P0.18/RESET SWDCLK SWDIO P1.11 P1.12 P1.13 P1.14 P1.15 P1.10 P1.06 GND P0.28/AIN4 P0.29/AIN5 P0.04/AIN2 P0.05/AIN3 P0.07 P1.08 GND P0.25 P0.30/AIN6 Descriptions GPIO, configured as I2C SDA on EV board GPIO, configured as I2C SCL on EV board NC, 32.768 KHz crystal embedded. NC, 32.768 KHz crystal embedded. GPIO, Analog input GPIO, Analog input GPIO, NFC antenna connection GPIO, NFC antenna connection DC supply 1.7V to 3.6V Ground GPIO GPIO GPIO; BT40N, BT-COEX-SATUS0 GPIO, reset with internal pull up, active low. Serial Wire Debug clock input Serial Wire Debug I/O GPIO, LTE-RXD for BT840N in Fanstel app. GPIO, LTE-TXD for BT840N in Fanstel app. GPIO, LTE-CTS for BT840N in Fanstel app. GPIO, LTE-RTS for BT840N in Fanstel app. GPIO. GPIO Connected to nRF21540 SCK pin internally. Ground GPIO, Analog input; Flash-WP in Fanstel app. GPIO, Analog input; Flash-CS in Fanstel app. GPIO, BT840N analog input; Flash- /HOLD in Fanstel app. GPIO, BT840N, analog input; QSPI Data3 in Fanstel app. GPIO, DIO1 in Fanstel LoRa app. Connected to nRF21540 MOSI pin internally. Ground GPIO; BUSY in Fanstel LoRa app. GPIO, BT840N, analog input; QSPI clock in Fanstel app. 10 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 B3 B4 B5 B6 C0 C1 C2 C3 C4 C5 C6 D0 D1 D2 D3 D4 D5 D6 E0 E1 E2 E3 E4 E5 E6 F0 F1 F2 F3 F4 F5 F6 A8 L1 N1 V23 AD20 AD18 AD12 AD10 W24 U24 AC19 AC15 AC11 AC9 Y23 T23 P23 AD16 AC17 R1 AD6 AD4 U1 P0.31/AIN7 P0.06 P0.08 P1.03 GND P0.24 P0.22 P0.17 P0.15 P1.02 P1.04 GND P0.23 P0.19 P0.16 P0.14 P1.01 P1.05 P1.07 P0.20 P0.21 P1.09 D+

D-

P0.12 Y2 AB2 AD2 VDDH DCCH VBUS GPIO, BT840N, analog input; QSPI Data1 in Fanstel app. GPIO, GPIO, GPIO Ground GPIO Connected to nRF21540 TX_EN pin internally. GPIO GPIO GPIO Connected to nRF21540 MISO pin internally Ground Connected to nRF21540 PDN pin internally. Connected to nRF21540 RX_EN pin internally. GPIO GPIO GPIO GPIO Connected to nRF21540 MODE internally. Connected to nRF21540 ANT-SEL internally. Connected to nRF21540 CSN pin internally. GPIO USB D+

USB D-

GPIO Ground pad Ground pad Ground pad Ground pad GPIO High Voltage Power Supply, 2.5V to 5.5V BT840F, DCDC converter output; BT40F, No connect, L,C circuit embedded. 5V DC power for USB 3.3V regulator 11 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 Mounting BT840N on the Host PCB The following figure shows recommended mounting of BT840N module on the host PCB. For the best Bluetooth range performance, the antenna area of module shall extend 9.8 mm outside the edge of host PCB board, or 9.8 mm outside the edge of a ground plane. The next choice is to place a module on a corner of host PCB, the antenna area shall extend 9.8 mm from the edge of ground plane. Ground plane shall be at least 5 mm from the edge of the antenna area of module. We dont recommend mounting BT840N module in the middle of a host PCB. For the best Bluetooth range performance, keep all external metal at least 30mm from the antenna area. 12 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 Host Board Design for Low Cost or Long Range A host board can be designed to accommodate these modules with nRF21540 PA. They are referred as BT840N. Our suggestions for host PCB design:

Use a 4 or more layers PCB. Use library component from EV-BT840NE Gerber files. They can be downloaded from http://www.fanstel.com/download-document/. It has 16 castellated pins plus 45 LGA pins. As much ground plane under BT40N, on top side of host PCB as possible. Use EV-BT40F Gerber files as an example. 13 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 Control Nordic nRF21540 Power Amplifier BT840N and BT840NE uses nRF21540 power amplifier. Nordic online document https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/ug_radio_fem.html?highlight=sky66112#ug-

radio-fem-skyworks https://infocenter.nordicsemi.com/pdf/nRF21540_PS_v1.2.pdf The nRF21540 device is a range extender that you can use with nRF52 Series devices. For more information about nRF21540, see the nRF21540 documentation. Setting for BT833N and BT840N Set up the FCC IC TX power for BT833N, BT840N SDK V.2.0.0 prj.conf

#TX POWER For BT833N(nrf52833+nrf21540) FCC IC CONFIG_BT_CTLR_TX_PWR_DYNAMIC_CONTROL=y CONFIG_BT_CTLR_TX_PWR_PLUS_3=y

#TX POWER For BT840N(nrf52840+nrf21540) FCC IC CONFIG_BT_CTLR_TX_PWR_DYNAMIC_CONTROL=y CONFIG_BT_CTLR_TX_PWR_PLUS_4=y 4. BT40F Evaluation Board An evaluation board consists of the followings:

Mini USB cable Evaluation board 10-conductor cable for connection to Nordic nRF53 DK (DK is not included) 14 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 The EV board can be programmed by using a Nordic nRF53 DK board, connected as below. (Photo to be updated) 15 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 Nordic Development Tools A Nordic nRF5340 DK is recommended for programming this evaluation board. Visit Nordic website for nRR5340 DK description and product brief. Many application examples can be downloaded from Nordic website. Some firmware, Android OS, and iOS app codes can be downloaded from Bluetooth 5 Codes section of this Fanstel webpage. http://www.fanstel.com/download-document/

BT40 firmware can be used in all nRF5340 modules without power amplifier, e.g., BT40F and BT40E. Android OS Apps The following Android OS apps are available for download from Google Play Store:

BlueNor nrf5x: to use with Bluetooth 5 stacks, AT commands, or Slave firmware. Master firmware does not connect to a smartphone. Source codes can be downloaded from http://www.fanstel.com/download-document/

BlueNor Mesh: to use with BlueNor mesh firmware to send command to any node in a mesh. Node number is displayed when acknowledgement is received. Source codes will be uploaded to Fanstel website when supporting Bluetooth 5. iOS Apps The following iOS apps can be downloaded from Apple APP Store. BlueNor Mesh: to use with BlueNor mesh firmware to send command to any node in a mesh. Node number is displayed when acknowledgement is received. BlueNor nrf5x firmware, apps, and source codes will be uploaded when ready. 16 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 EV-BT40NE EvaluationBoard Schematics Evaluation board EV-BT840F schematics and Gerber files is available at Fanstel website. 17 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 Evaluation board can be used as a reference design for using modules. EV-BT40F is designed for the BT40F with 61 pins. soldering pads can also be This EV board BT40E, and used for BT40, modules. BT40X 18 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 Suggestion for Battery Power Application Standby current consumption is important for battery-powered product. To reduce host board area, the followings are embedded in modules:

32 MHz, 20PPM main crystal and load capacitors. 32.768 KHz, 20PPM sleep crystal and load capacitors. Inductors and capacitors required for VDD power supply DC to DC converter. Inductors and capacitors required for VDDH power supply DC to DC converter. The external sleep crystal shall be used for a precise sleep clock frequency. DCDC converter shall be enabled to reduce power consumption. 19 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 5. Miscellaneous Soldering Temperature-Time Profile for Re-Flow Soldering Maximum number of cycles for re-flow is 2. No opposite side re-flow is allowed due to module weight. Cautions, Design Notes, and Installation Notes Failure to follow the guidelines set forth in this document may result in degrading of the products functions and damage to the product. Design Notes

(1) Follow the conditions written in this specification, especially the control signals of this module.

(2) The supply voltage has to be free of AC ripple voltage (for example from a battery or a low noise regulator output). For noisy supply voltages, provide a decoupling circuit (for example a ferrite in series connection and a bypass capacitor to ground of at least 47uF directly at the module).

(3) This product should not be mechanically stressed when installed.

(4) Keep this product away from heat. Heat is the major cause of decreasing the life of these products.

(5) Avoid assembly and use of the target equipment in conditions where the products' temperature may exceed the maximum tolerance.

(6) The supply voltage should not be exceedingly high or reversed. It should not carry noise and/or spikes. 20 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023

(7) this product away from other high frequency circuits. Notes on Antenna and PCB Layout

(1) Dont use a module with internal antenna inside a metal case.

(2) For PCB layout:

Avoid running any signal line below module whenever possible, No ground plane below antenna, If possible, cut-off the portion of main board PCB below antenna. Installation Notes

(1) Reflow soldering is possible twice based on the time-temperature profile in this data sheets. Set up the temperature at the soldering portion of this product according to this reflow profile.

(2) Carefully position the products so that their heat will not burn into printed circuit boards or affect the other components that are susceptible to heat.

(3) Carefully locate these products so that their temperatures will not increase due to the effects of heat generated by neighboring components.

(4) If a vinyl-covered wire comes into contact with the products, then the cover will melt and generate toxic gas, damaging the insulation. Never allow contact between the cover and these products to occur.

(5) This product should not be mechanically stressed or vibrated when reflowed.

(6) If you want to repair your board by hand soldering, please keep the conditions of this chapter.

(7) Do not wash this product.

(8) Refer to the recommended pattern when designing a board.

(9) Pressing on parts of the metal cover or fastening objects to the metal will cause damage to the unit. Usage Condition Notes

(1)Take measures to protect the unit against static electricity. If pulses or other transient loads (a large load applied in a short time) are applied to the products, check and evaluate their operation before assembly on the final products.

(2)Do not use dropped products.

(3)Do not touch, damage or soil the pins.

(4) Follow the recommended condition ratings about the power supply applied to this product.

(5)Electrode peeling strength: Do not add pressure of more than 4.9N when soldered on PCB

(6) Pressing on parts of the metal cover or fastening objects to the metal cover will cause damage. 21 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023

(7) These products are intended for general purpose and standard use in general electronic equipment, such as home appliances, office equipment, information and communication equipment. Storage Notes

(1)The module should not be stressed mechanically during storage.

(2)Do not store these products in the following conditions or the performance characteristics of the product, such as RF performance will be adversely affected:

Storage in salty air or in an environment with a high concentration of corrosive gas. Storage in direct sunlight Storage in an environment where the temperature may be outside the range specified. Storage of the products for more than one year after the date of delivery storage period.

(3) Keep this product away from water, poisonous gas and corrosive gas.

(4) This product should not be stressed or shocked when transported.

(5) Follow the specification when stacking packed crates (max. 10). Safety Conditions These specifications are intended to preserve the quality assurance of products and individual components. Before use, check and evaluate the operation when mounted on your products. Abide by these specifications, without deviation when using the products. These products may short-circuit. If electrical shocks, smoke, fire, and/or accidents involving human life are anticipated when a short circuit occurs, then provide the following failsafe functions, as a minimum.

(1)Ensure the safety of the whole system by installing a protection circuit and a protection device.

(2)Ensure the safety of the whole system by installing a redundant circuit or another system to prevent a dual fault causing an unsafe status. Other Cautions

(1)This specification sheet is copyrighted. Reproduction of this data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices.

(2)Do not use the products for other purposes than those listed.

(3)Be sure to provide an appropriate failsafe function on your product to prevent an additional damage that may be caused by the abnormal function or the failure of the product.

(4)This product has been manufactured without any ozone chemical controlled under the Montreal Protocol.

(5)These products are not intended for other uses, other than under the special conditions shown below. Before using these products under such special conditions, check their performance and 22 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 reliability under the said special conditions carefully to determine whether or not they can be used in such a manner. In liquid, such as water, salt water, oil, alkali, or organic solvent, or in places where liquid may splash. In direct sunlight, outdoors, or in a dusty environment In an environment where condensation occurs. In an environment with a high concentration of harmful gas.

(6) If an abnormal voltage is applied due to a problem occurring in other components or circuits, replace these products with new products because they may not be able to provide normal performance even if their electronic characteristics and appearances appear satisfactory.

(7) When you have any question or uncertainty, contact Fanstel. 23 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 Packaging and Lot Number Production modules are delivered in reel, 1000 modules in each reel. Lot number for modules made after May 2019, can be used to track silicon version of SoC, module PCB version, and production test code version. FCC LABEL The Original Equipment Manufacturer (OEM) must ensure that the OEM modular transmitter must be labeled with its own FCC ID number. This includes a clearly visible label on the outside of the final product enclosure that displays the contents shown below. If the FCC ID is not visible when the equipment is installed inside another device, then the outside of the device into which the equipment is installed must also display a label referring to the enclosed equipment The end product with this module may subject to perform FCC part 15 unintentional emission test requirement and be properly authorized. This device is intended for OEM integrator only. 24 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 25 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 Revision History Aug. 2023, Ver. 0.90: Initial draft release. 26 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 Contact Us United States:

Fanstel Corp. 7466 E. Monte Ctisto Ave. Scottsdale AZ 85260 Tel. 1 480-948-4928 Fax. 1-480-948-5459 Email: module@fanstel.com Website: www.fanstel.com Taiwan:

Fanstel Corp. 10F-10, 79 Xintai Wu Road Xizhu, New Taipei City, Taiwan 22101 79 10 10, 22101 Tel. 886-2-2698-9328 Fax. 886-2-2698-4813 Email: tp@fanstel.com Website: www.fanstel.com China:

Fanstel Technologies Corp. 11 Jiale Street Ping-Dih, Long-Gang, Shen Zhen, GD 518117

() 11 Tel. 86-755-8409-0928 Fax. 86-755-8409-0973 QQ. 3076221086 Email: sz@fanstel.com Website: www.fanstel.com 27 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 Federal Communications Commission (FCC) Statement You are cautioned that changes or modifications not expressly approved by the part responsible for compliance could void the users authority to operate the equipment. This equipment has been tested and found to comply with 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. 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 of the device. FCC RF Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific operating instructions for satisfying RF exposure compliance. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. RF exposure warning This equipment must be installed and operated in accordance with provided instructions and the antenna(s) usedfor this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and mustnot be co-located or operating in conjunction with any other antenna or transmitter. End-users and installers mustbe provide with antenna installation instructions and transmitter operating conditions for satisfying RF exposurecompliance. 28 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 Industry Canada (IC) Statement This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. RF exposure warning This equipment must be installed and operated in accordance with provided instructions and the antenna(s) usedfor this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and mustnot be co-located or operating in conjunction with any other antenna or transmitter. End-users and installers mustbe provide with antenna installation instructions and transmitter operating conditions for satisfying RF exposurecompliance. Canada, avis dIndustry Canada (IC) Le prsent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorise aux deux conditions suivantes:

(1) l'appareil ne doit pas produire de brouillage, et

(2) l'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. Informations concernant l'exposition aux frquences radio (RF) Cet quipement est conforme avec l'exposition aux radiations IC dfinies pour un environnement noncontrl. Cet quipement doit tre install et utilis une distance minimum de 20 cm entre le radiateuret votre corps. Cet metteur ne doit pas tre co-localises ou oprant en conjonction avec une autreantenne ou transmetteur. Les utilisateurs finaux et les installateurs doivent tre informs des instructions d'installation de l'antenne et des conditions de fonctionnement de l'metteur afin de satisfaire la conformit d'exposition RF. Note: The end product shall has the words Contains Transmitter Module FCC ID: X8WBT840Ncontient IC: 4100A-BT840N 29 BLE 5.3 Modules with nRF21540 PA, BT840N/NE Draft Ver 0.90, Aug. 2023 Information for the OEM and Integrators The following statement must be included with all versions of this document supplied to an OEM or integrator, but should not be distributed to the end user.

(1) This device is intended for OEM integrators only.

(2) Please see the full Grant of Equipment document for other restrictions. BT840N: PCB Antenna, 0.88 dBi ; BT840NE: Dipole Antenna, 6dBi Must use the device only in host devices that meet the FCC/ISED RF exposure category of mobile, which means the device is installed and used at distances of at least 20cm from persons. The end user manual shall include FCC Part 15 /ISED RSS GEN compliance statements related to the transmitter as show in this manual. Host manufacturer is responsible for compliance of the host system with module installed with all other applicable requirements for the system such as Part 15 B, ICES 003. Host manufacturer is strongly recommended to confirm compliance with FCC/ISED requirements for the transmitter when the module is installed in the host. Must have on the host device a label showing Contains FCC ID: X8WBT840Ncontient IC: 4100A-BT840N The use condition limitations extend to professional users, then instructions must state that this information also extends to the host manufacturers instruction manual. This module is stand-alone modular. If the end product will involve the Multiple simultaneously transmitting condition or different operational conditions for a stand-alone modular transmitter in a host, host manufacturer have to consult with module manufacturer for the installation method in end system. l'hte doit utiliser l'instrument uniquement dans des dispositifs qui rpondent la fcc / (catgorie d'exposition rf mobile, ce qui signifie le dispositif est install et utilis une distance d'au moins 20 cm de personnes. le manuel de l'utilisateur final doit inclure la partie 15 / (fac rss gen dclarations de conformit relatives l'metteur que de montrer dans ce manuel. le fabricant est responsable de la conformit de l'hte, le systme d'accueil avec le module install avec toutes les autres exigences applicables du systme comme la partie 15 b, ices - 003. accueillir le fabricant est fortement recommand de confirmer la conformit avec les exigences de la fcc /

(metteur lorsque le module est install dans l'hte. le dispositif d'accueil doivent avoir une tiquette indiquant contient FCC ID: X8WBT840Ncontient IC: 4100A-BT840N 30

WARNING:pdfminer.pdfpage:The PDF <_io.BufferedReader name='/Volumes/Scratch/Incoming/eg-scratch/6842692.pdf'> contains a metadata field indicating that it should not allow text extraction. Ignoring this field and proceeding. Use the check_extractable if you want to raise an error in this case FCC ID & IC LABEL FORMAT AND LOCATION Applicant: Fanstel Corporation, Taipei FCC ID: X8WBT840N IC: 4100A-BT840N

Agent letter FCC attestation statement Kiwa RF_753, Issue 2 Page 1 of 2 15-02-2023

[PLACE ON APPLICANT/COMPANY LETTERHEAD]

U.S. Agent Designation for Service of Process

(Applicant and U.S. Agent are Separate Parties) TO:

Kiwa Nederland B.V. Wilmersdorf 50 7327 AC Apeldoorn Postbus 137 7300 AC Apeldoorn Netherlands ATTENTION: FCC Certification Section 2.911(d)(7) Information Designated U.S. Agent Fanstel Corp. 0023143266 Company name:

FRN:

Contact person name: Yuan Fan Street address:

ZIP/City/State Telephone number:

Email address:

Signature:

Date:

7466 E. Monte Cristo Ave. Scottsdale AZ 85260 USA 1 480 948 4928 yfan@fanstel.com 2023/09/25 This letter is to confirm that we (the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-

related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name:

Grantee Code:

Contact person name: Paudy Tung Street address:

Fanstel Corporation, Taipei X8W 10F-10, No. 79, Sec. 1, Hsin Tai Wu Rd., Hsi-

Chih,. ZIP/City/State/Country New Taipei City 221 Taiwan Telephone number:

Email address:

+886-2-2698-9328 paudyt@fanstelsystems.com Agent letter FCC attestation statement Kiwa RF_753, Issue 2 Page 2 of 2 15-02-2023

[PLACE ON APPLICANT/COMPANY LETTERHEAD]

Signature:

Date:

2023/09/25 Revision Record Sheet:

Revision Section Page number Date Remark(s) issued by number 01 02 07-02-2023 1st version RvdM 1 15-05-2023 Added FRN to Agent details RvdM Issued/modified by Function Revision Date

: Richard van der Meer

: Certification assessor

: 02

: 15-02-2023 Verified by Function Date

: Willem Jan Jong

: Team Lead

: 16-02-2023 Released by Function Date of release:

: Axel Gase

: Manager Quality Assurance

: 19-02-2023

Covered list attestation FCC application letter Kiwa RF_755_02 Page 1 of 2 15-02-2023

[PLACE COMPANY LOGO HERE OR PUT ON COMPANY LETTERHEAD]

Certification Application Attestation Statements Fanstel Corporation, Taipei>

10F-10, No. 79, Sec. 1, Hsin Tai Wu Rd., Hsi-Chih, 221 New Taipei City, Taiwan Subject: FCC ID: X8WBT840N To Whom It May Concern:

Statement for 47 CFR section 2.911(d)(5)(i)

[Paudy Tung] certifies that as of the date of the application the equipment for which authorization is sought is not covered equipment1 prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, including affiliates or subsidiaries of the named companies, the applicant must include an explanation on why the equipment is not covered equipment. Additional Explanation: <N/A>

Statement for 47 CFR section 2.911(d)(5)(ii)

[Paudy Tung] (the applicant) certifies that, as of the date of the filing of this application, the applicant

- is /

- is not (3) identified on the Covered List as an entity producing covered equipment. Date:

City:

Name(2) :

Function:

Telephone number:

Email address:

2023/05/08 New Taipei City Paudy Tung Engineer

+886-2-26989328 paudyt@fanstelsystems.com Signature:

1 - The Commissions Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commissions website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes covered equipment. https://www.fcc.gov/supplychain/coveredlist .

(2): For FCC it must be the Grantee Code owner or the authorized agent.

(3): double click on the appropriate box and select checked then OK Covered list attestation FCC application letter Kiwa RF_755_02 Page 2 of 2 15-02-2023

[PLACE COMPANY LOGO HERE OR PUT ON COMPANY LETTERHEAD]

Revision Record Sheet:

Revision Section Page Date Remark(s) number number 07-02-2023 1st version 01 02 issued by RvM 1 15-02-2023 Changed Applicant to Company RvdM and added Subject: FCC ID:

Issued/modified by Function Revision Date

: Richard van de Meer

: Certification assessor

: 02

: 15-02-2023 Verified by Function Date

: Willem Jan Jong

: Team Lead

: 16-02-2023 Released by Function Date of release:

: Axel Gase

: Manager Quality Assurance

: 19-02-2023

FCC, Request for non-disclosure RF_501, Issue 10 Date: 02-01-2022 Company Name: Fanstel Corporation, Taipei Address:

City:

Country:

10F-10, No. 79, Sec. 1, Hsin Tai Wu Rd., Hsi-Chih, New Taipei City 221 Taiwan To: Kiwa Netherlands B.V., Dept. FCC TCB Wilmersdorf 50 7327 AC Apeldoorn The Netherlands Subject: Request for confidentiality FCC ID: X8WBT840N Reference number: ######

Dear FCC TCB, 1. Long-Term Confidentiality Pursuant to 47 CFR Section 0.459(a) & (b), we hereby requests non-disclosure and confidential treatment of the following materials submitted in support of FCC certification application:

Bill(s) of Material Block Diagrams Operational Description Schematic Diagrams Tune-up Procedure Above materials contain secrets, proprietary and technical information, which would customarily be guarded from competitors under 47 CFR, section 0.457(d)(2). Disclosure or publication or any portion of this company confidential material to other parties could cause substantial competitive harm and provide unjustified benefits for competitors. 2. Short-Term Confidentiality (STC) Pursuant to Public Notice DA 04-1705 of the Commissions policy, in order to comply with the marketing regulations in 47 CFR 2.803 and the importation rules in 47 CFR 2.1204, applicant hereby requests Short-Term Confidential treatment of the following materials (See notes below):

Internal Photos Users Manual Test Set-up Photos External Photos Justification:

Date: 2023/09/25 Name and signature of applicant: Paudy Tung Engineer Notes:

1) A document or type of document can only have ONE type of confidentiality!

2) Short-Term confidentiality is in principle for 45 days from date of grant; it can be extended max 3 times (total time 180 days max.)!

The planned date should state in the RF731 application form. 3) FCC must be informed when marketing begins earlier. 4) Release takes place automatically thus extension must be requested in time. Telefication does not remind you of this!

5) Request for extension or for release must be received by Kiwa NL B.V. at least 7 days before date of actual marketing or before expiration of the STC period FCC, Request for non-disclosure RF_501, Issue 10 Revision Record Sheet:

Date: 02-01-2023 Page 1 of 1 Revision Section number 10 Page number Date Remark(s) issued by 1 02-01-2023 History sheet added AG Issued/modified by Function Revision Date

: Axel Gase

: Quality Manager

: 10

: 02-01-2023 Verified by Function Date

: Willem Jan Jong

: Team Lead

: 02-01-2023 Released by Function Date of release:

: Axel Gase

: Manager Quality Assurance

: 02-01-2023

RF_160_05 Declaration of Authorisation Date of issue 02-01-2023 Declaration of Authorization We Name:

Address:

City:

Country:

Declare that:

Fanstel Corporation, Taipei 10F-10, No. 79, Sec. 1, Hsin Tai Wu Rd., Hsi-Chih,. New Taipei City 221 Taiwan Name Representative of agent:

Agent Company name:

Address:

City:

Country Jerry Liu. (1) International Standards Laboratory Corp. No. 120, Lane 180, Hsin Ho Rd., Lung-Tan Dist., Tao Yuan City 325. Taiwan is authorized to apply for Certification of the following product(s):

Product description: Bluetooth 5.3 Module Type designation: BT840N; BT840NE Fanstel Trademark:

Validity/ expiry date on our behalf. Date:

City:

Name:

2023/09/25.. New Taipei City .. Paudy Tung .. (2) Function:

Engineer. Signature:

. Notes:

(1): Required for FCC application

(2): For FCC it must be the Grantee Code owner or the authorized agent. Revision Record Sheet:

Revision Section number 02 Page number Date Remark(s) issued by 1 02-01-2023 History sheet added AG Issued/modified by Function Revision Date

: Axel Gase

: Quality Manager

: 02

: 02-01-2023 Verified by Function Date

: Willem Jan Jong

: Team Lead

: 02-01-2023 Released by Function Date of release:

: Axel Gase

: Manager Quality Assurance

: 02-01-2023

RF_734_05 FCC Modular Approval Request Page 1 of 3 28-12-2022 Modular Approval Request FCC (KDB 996369 D01 & Part 15.212) FCC ID: _ X8WBT840N __________________ Items to be covered by Single modular transmitters. 1. The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly. 2. The module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal. 3. The module must contain power supply regulation on the module 4. The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b). 5.The module must demonstrate compliance in a stand-alone configuration. 6.The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (see KDB Publication 784748). 7.The module must comply with all specific rules applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. 8.The module must comply with RF exposure requirements. Answer from applicant The module has a metal shielded. Refer to the external photo of EUT Data to the modulation circuit is buffered as described in the circuit/block diagram -

nRF51540 provided with the application. The module contains its own power supply regulation. Please refer to schematic as nRF5340 and nRF21540 contain power regulation supplied to sub-functionality of the radio Device is equipped with External Antenna with unique non standard antenna port, PCB and Dipole Antenna. Refer to the photo of EUT. The module was tested standalone as shown in test report setup photographs filed with this application. The modular has a permanent fixed label, and below statement was listed in the User Manual;

The host device must be labeled to display the FCC ID of the module Contains FCC ID: X8WBT840N The module comply with all specific rules applicable to the transmitter including all the conditions provided in the integration instructions by the grantee, Refer to test report and user manual The transmitter meets MPE calculation of 47CFR 2.1091 & 47 CFR 1.1307. Refer to MPE Reports and Refer to modular installation manual. RF_734_05 FCC Modular Approval Request Page 2 of 3 28-12-2022 Items to be covered by Split modular transmitters. 1. The modular transmitter must comply with all requirements of a single modular transmitter except for items (1) & (5) of the above single modular approval requirements. Answer from applicant 2. Only the radio front end must be shielded. The physical crystal and tuning capacitors may be located external to the shielded radio elements. The interface between the split sections of the modular system must be digital with a minimum signalling amplitude of 150 mV peak-to-peak. 3. Control information and other data may be exchanged between the transmitter control elements and radio front end. 4. The sections of a split modular transmitter must be tested installed in a host device(s) similar to that which is representative of the platform(s) intended for use. 5. Manufacturers must ensure that only transmitter control elements and radio front end components that have been approved together are capable of operating together. The transmitter module must not operate unless it has verified that the installed transmitter control elements and radio front end have been authorized together. Manufacturers may use means including, but not limited to, coding in hardware and electronic signatures in software to meet these requirements, and must describe the methods in their application for equipment authorization. Note: A limited modular approval (LMA) may be granted for single or split modular transmitters that comply partially with the requirements above. Name and surname of applicant (or authorized representative): __ Paudy Tung /

Enginner________________ Date: ___2023/09/25_________ Signature:

RF_734_05 FCC Modular Approval Request Revision Record Sheet:

Revision Section number Page 3 of 3 28-12-2022 Page number Date Remark(s) issued by 5 1 28-12-2022 History sheet added WJJ Issued/modified by Function Revision Date

: Willem Jan Jong

: Team Lead

: 5

: 28-12-2022 Verified by Function Date

: Axel Gase

: Quality Manager

: 28-12-2022 Released by Function Date of release:

: Axel Gase

: Manager Quality Assurance

: 28-12-2022

Subject: Formal statement regarding the similarities and the differences between the models. Date: 09 / 25 / 2023 Dear Sirs, Fanstel Corporation, located at 10F-10, No. 79, Sec. 1, Hsin Tai Wu Rd., Hsi-Chih, New Taipei City 221 Taiwan, hereby states that the models BT840N and BT840NE are similar in the following aspects same RF module, PCB and Layout. The only difference is the antenna type. module SoC Size, mm BT Antenna BT840N nRF52840 15x29.9x2.0 PA+PCB BT840NE nRF52840 15x29.9x2.0 PA+PCB+u.FL We wish to certify both as a family, using the existing test reports. Best Regards, Signature Paudy Tung Complete name Fanstel Corporation job position Taiwan