QOQ-BGM220S2Bluetooth Low Energy wireless radio module

BGM220S Wireless Gecko Bluetooth Module Data Sheet The BGM220S is a module designed and built to meet the per- formance, security, and reliability requirements of battery-powered IoT products running on Bluetooth networks. Based on the EFR32BG22 SoC, the BGM220S enables Bluetooth ® Low Energy connec- tivity while delivering best-in-class RF range and performance, future-proof capability for feature and OTA firmware updates, enhanced security features, and low energy con- sumption. BGM220S modules are a full solution that comes with fully-upgradeable, robust software stacks, world-wide regulatory certifications, advanced development and debugging tools, and support that will minimize and simplify the engineering and development of your end-products helping to accelerate their time-to-market. The BGM220S is intended for a broad range of applications, including: • Asset Tags and Beacons • Portable Medical • Sports, Fitness, and Wellness devices • Connected Home • Industrial and Building Automation • Bluetooth mesh Low Power Nodes KEY FEATURES • Bluetooth 5.2 • Built-in antenna or RF pin • Up to 6 dBm TX power • -98.6 dBm BLE RX sensitivity at 1 Mbps • 32-bit ARM Cortex-M33 core at up to 76.8 MHz • 512/32 kB of Flash/RAM memory • Optimal selection of MCU peripherals • 25 GPIO pins • 6 mm × 6 mm × 1.1 mm Lowest power mode with peripheral operational: EM4—Shutoff EM3—StopEM2—Deep SleepEM1—SleepEM0—Active Timers and Triggers 32-bit bus Peripheral Reflex System Serial Interfaces I/O Ports Analog I/F USART EUART External Interrupts General Purpose I/O Pin Reset Pin Wakeup ADC Energy Management Brown-Out Detector Voltage Regulator Power-On Reset SecurityClock Management HF Crystal Oscillator LF Crystal Oscillator Precision LF RC Oscillator HF RC Oscillator Crypto Acceleration Ultra LF RC Oscillator Core / Memory ARM Cortex TM M33 processor with DSP extensions, FPU and TrustZone ETMDebug InterfaceRAM Memory LDMA Controller Flash Program Memory Real Time Capture Counter Timer/ Counter Low Energy Timer Watchdog Timer Protocol Timer True Random Number Generator Fast Startup RC Oscillator Back-Up Real Time Counter I 2 C PDM DC-DC Converter Temperature Sensor Radio Subsystem RFSENSE w/ OOK Detect RX/TX Frontend with Integrated PA Frequency Synthesizer ARM Cortex TM M0+ Radio Controller CRC BUFC RAM FRC DEMOD AGC IFADC MOD Crystals Antenna Discrete Antenna Matching 38.4 MHz silabs.com | Building a more connected world.Rev. 1.0 1. Feature List •Supported Protocols • Bluetooth Low Energy (Bluetooth 5.2) • Direction finding • 1M, 2M, and LE Coded PHYs • Bluetooth Mesh Low Power Node •Wireless System-on-Chip • 2.4 GHz radio • TX power up to 6 dBm • High-performance 32-bit ARM Cortex-M33 ® with DSP in- struction and floating-point unit for efficient signal process- ing • Up to 512 kB flash program memory • 32 kB RAM data memory • Embedded Trace Macrocell (ETM) for advanced debugging •High Receiver Performance • -106.4 dBm sensitivity (0.1% BER) at 125 kbps GFSK • -102.3 dBm sensitivity (0.1% BER) at 500 kbps GFSK • -98.6 dBm sensitivity (0.1% BER) at 1 Mbps GFSK • -95.9 dBm sensitivity (0.1% BER) at 2 Mbps GFSK •Low-Energy Consumption • 4.2 mA RX current at 1 Mbps GFSK • 4.6 mA TX current at 0 dBm output power • 26 μA/MHz in Active Mode (EM0) • 1.40 μA EM2 DeepSleep current (RTCC running from LFXO, Full RAM retention) • Regulatory Certifications 1 • FCC • CE • IC/ISEDC • MIC/TELEC • KCC •Wide Operating Range • 1.8 to 3.8 V • -40 to +105 °C and -40 to +85 °C Versions Available •Dimensions • 6 mm × 6 mm × 1.1 mm •Security Features • Secure Boot with Root of Trust and Secure Loader (RTSL) • Hardware Cryptographic Acceleration for AES128/256, SHA-1, SHA-2 (up to 256-bit), ECC (up to 256-bit), ECDSA, and ECDH • True Random Number Generator (TRNG) compliant with NIST SP800-90 and AIS-31 • ARM ® TrustZone ® • Secure Debug with lock/unlock •Wide Selection of MCU Peripherals • Analog to Digital Converter (ADC) • 12-bit @ 1 Msps • 16-bit @ 76.9 ksps • 25 General Purpose I/O pins with output state retention and asynchronous interrupts • 8 Channel DMA Controller • 12 Channel Peripheral Reflex System (PRS) • 4 × 16-bit Timer/Counter with 3 Compare/Capture/PWM channels • 1 × 32-bit Timer/Counter with 3 Compare/Capture/PWM channels • 32-bit Real Time Counter • 24-bit Low Energy Timer for waveform generation • 1 × Watchdog Timer • 2 × Universal Synchronous/Asynchronous Receiver/Trans- mitter (UART/SPI/SmartCard (ISO 7816)/IrDA/I 2 S) • 1 × Enhanced Universal Asynchronous Receiver/Transmit- ter (EUART) • 2 × I 2 C interface with SMBus support • Digital microphone interface (PDM) • RFSENSE with selective OOK mode 1.Available at the BGM220S Full-Production release. BGM220S Wireless Gecko Bluetooth Module Data Sheet Feature List silabs.com | Building a more connected world.Rev. 1.0 | 2 2. Ordering Information Table 2.1. Ordering Information Ordering CodeProtocol Stack TX Power Rating Max CPU Speed Anten- na RF Shield Flash (kB) RAM (kB)GPIOTemp Range BGM220SC12WGA2Bluetooth 5.20 dBm38.4 MHzBuilt-inNo3523225-40 to 85 °C BGM220SC22HNA2Bluetooth 5.2 • Direction finding 6 dBm76.8 MHzBuilt-inYes5123225-40 to 105 °C BGM220SC22WGA2Bluetooth 5.26 dBm76.8 MHzBuilt-inYes3523225-40 to 85 °C Note: 1.End-product manufacturers must verify that the module is configured to meet regulatory limits for each region in accordance with the formal certification test reports. 2.Devices are pre-programmed with BGAPI UART DFU bootloader v1.10.2. 3.Throughout this document, the devices in the table above may be referred to by their product family name (e.g. BGM220S), by model name (BGM220S12A for 0 dBm TX power, BGM220S22A for 6 dBm TX power), or by full ordering code. 4.LE Long Range (125 kbps and 500 kbps) PHYs are only supported on part numbers which include direction-finding capability. 5.In accordance with the Bluetooth specification, the module operates over the following frequency range: 2402 - 2480 MHz. The module is also capable of operating in a…

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SILICON LABS Agency Authorization Letter Attn: To Whom it May Concern / Application Examiner / Review Engineer / Officer in Charge Re: Authority to Act as Agent for FCC application Dear Madam or Sir, We, Silicon Laboratories Finland Oy, a corporation branch validly organized and existing under the laws of Finland, having its principal place of business at Alberga Business Park, Bertel Jungin aukio 3, 02600 Espoo, Finland hereby authorize the following person: Andrea Hsia Supervisor of Bureau Veritas Consumer Products Services (H.K.) Ltd. Taoyuan Branch (BV CPS Taoyuan) of Taiwan to act on our behalf as our agent in all manners relating to the Federal Communication Commission (“FCC”) application for equipment authorization in connection with our Bluetooth Low Energy wireless radio modules with model names of BGM22OS22A and BGX22OS22A, having FCC ID: QOQ-BGM22OS2. Our authorization extends to any communication needed with the TCB and FCC, and includes signing of all documents relating to this matters. Any and all acts carried out on our behalf by Andrea Hsia, Supervisor of BV CPS Taoyuan, within the scope of the powers granted herein, shall have the same effect as acts of our own. Should there be any query regarding this authorization, please do not hesitate to contact the undersigned. Thank you for your attention to this matter. Place and date of issue (of this letter): Espoo, 17 August 2020 Authorized Contact: Enrico Taddeo Job Title: Senior Applications and Certifications Engineer eMail: [email protected] Silicon Laboratories Finland Oy Alberga Business Park, Bertel Jungin aukio 3 Fl-02600 Espoo, Finland Phone: ÷358 9 435 5060 www.silabs.com

SILICON LARS Cover Letter for Confidentiality Exceptional Circumstance to Keep Internal Photos Confidential Federal Communications Commission (Authorization and Evaluation Division) 7435 Oakland Mills Road, Columbia, MD 21046 Attn: To Whom it May Concern I Application Examiner / Review Engineer I Officer in Charge Re: Permanent Confidentiality Request for FCC ID: QOQ-BGM22OS2 concerning the internal photo(s) Dear Madam or Sir, We, Silicon Laboratories Finland Dy, a corporation branch validly organized and existing under the laws of Finland, having its principal place of business at Alberga Business Park, Bertel Jungin aukio 3, 02600 Espoo, Finland, hereby request the authorization to keep the internal photo(s) of our Bluetooth Low Energy wireless radio modules with model names of BGM22OS22A and BGX22OS22A, having FCC ID: QOQ-BGM22OS2, confidential. We have spent substantial effort in developing this product and it is one of the first of its kind in the industry with a unique internal construction. Having the internal photos easily available to other competing manufacturers would negate the advantage we have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Module integrators do not have access to the internal parts of the module: the module is completely molded and removing the molding material mechanically will destroy the module and brake the parts in it. Should there be any query regarding this request, please do not hesitate to contact the undersigned. Thank you for your attention to this matter. Place and date of issue (of this letter): Espoo, August 14, 2020 Authorized Contact: Enrico Taddeo Job Title: Senior Applications and Certifications Engineer eMail: [email protected] Silicon Laboratories Finland Dy Alberga Business Park Bertel Jungin aukio 3 Fl-02600 Espoo, Finland Phone: +358 9 435 5060 www.silabs.com

SILICON LABS Cover Letter for Confidentiality Federal Communications Commission (Authorization and Evaluation Division) 7435 Oakland Mills Road, Columbia, MD 21046 Attn: To Whom it May Concern I Application Examiner! Review Engineer! Officer in Charge Re: Permanent Confidentiality Request for FCC ID: 000-BGM22OS2 Dear Madam or Sir, We, Silicon Laboratories Finland Oy, a corporation branch validly organized and existing under the laws of Finland, having its principal place of business at Alberga Business Park, Bertel Jungin aukio 3, 02600 Espoo, Finland, pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, hereby request the permanent confidential treatment of information as outlined below: Schematics, Block Diagram, Operational Description and Internal Photo(s) The above design material relates to the FCC application for equipment authorization in connection with our Bluetooth Low Energy wireless radio modules with model names of BGM22OS22A and BGX22OS22A, having FCC ID: QOQ-BGM22OS2. The above design material contains trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to our business and provide unjustified benefits to our competitors. We understand that pursuant to Rule 0.457, disclosure of the application and all other accompanying documentation shall not be made before the date of the related Grant release. Should there be any query regarding this authorization, please do not hesitate to contact the undersigned. Thank you for your attention to this matter. Place and date of issue (of this letter): Espoo, August 17, 2020 Authorized Contact: Enrico Taddeo Job Title: Senior Applications and Certifications Engineer eMail: [email protected] Silicon Laboratories Finland Oy Alberga Business Park Bertel Jungin aukio 3 Fl-02600 Espoo, Finland Phone: +358 9 435 5060 www.silabs.com

FCC ID: QOQ-BGM220S2 Report No.: RF190408C21, RF190408C21-1 Modular Approval Request Letter Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch August 24, 2020 Dear Application Examiner, Silicon Laboratories Finland Oy., Zigbee and Bluetooth Low Energy wireless radio modules, FCC ID: QOQ-BGM220S2 would like to have your authorization as a modular approval specific to the mobile RF exposure condition. The requirements of KDB996369 have been met and shown on the following statements. 1. “The modular transmitter must have its own RF shielding.” The radio portion of this module has been shielded, please see exhibition External Photo. 2. “The modular transmitter must have buffered modulation/data inputs.” The EUT has buffered data inputs, it is integrated in chip EFR32BG22. 3. “The modular transmitter must have its own power supply regulation.” The part number of this regulator is EFR32BG22. 4. “The modular transmitter must comply with the antenna requirements of section 15.203 and 15.204(C).” The EUT meets the FCC antenna requirements. The spurious emission, unique antenna connector and photo of antennas are shown in the test report. 5. “The modular transmitter must be tested in a stand-alone configuration” The EUT was tested in a stand-alone configuration via a Fixture Board. Please see section Photographs of Test Configuration in the test report. 6. “The modular transmitter must be labeled with its own FCC ID number.” Please see exhibition Label Sample for the FCC ID of this module. And also in the exhibition Users Manual, there are instructions give to the OEM on how to label the end product. FCC ID: QOQ-BGM220S2 Report No.: RF190408C21, RF190408C21-1 7. “The modular transmitter must comply with any specific rule or operating requirements applicable to the transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements.” The EUT is compliant with all applicable FCC rules. Detail instructions for maintaining compliance are given in the Users Manual. 8. “The modular transmitter must comply with any applicable RF exposure requirements.” The EUT is compliant with all applicable RF exposure requirements. RF Exposure is addressed in the RF exposure exhibition. Please contact me if you have any further questions. Thanks for your attention. Best Regards, ________________ Andrea Hsia Supervisor Bureau Veritas Consumer Products Services (H.K.) Ltd., Hsinchu Branch

SILICON LABS Declaration of Identity Federal Communications Commission (Authorization and Evaluation Division) 7435 Oakland Mills Road, Columbia, MD 21046 FCC ID: QOQ-BGM22OS2 Attn: To Whom it May Concern I Application Examiner / Review Engineer / Officer in Charge Re: Declaration of Identity I Attestation of Model Difference Dear Madam or Sir, We, Silicon Laboratories Finland Oy, a corporation branch validly organized and existing under the laws of Finland, having its principal place of business at Alberga Business Park, Bertel Jungin aukio 3, 02600 Espoo, Finland, hereby declare that our radio modules covered by the FCC ID: QOQ-BGM22052 are the two models with names and brand as listed below: Product description: Bluetooth Low Energy wireless radio modules Model names: BGM220522A and BGX22OS22A Trademark / Brand: Silicon Labs As the manufacturers of the above-listed modules we declare that they are electrically and mechanically identical, and the only differences between the models are described in the last row of the table below: Product Bluetooth Low Energy wireless radio modules Model BGM22OS22A BGX22OS22A Hardware-wise the modules are identical. These are fully internally regulated and Hardware shielded SiP (System-in-Package) modules coming with an RF pin to route the RF signal of the embedded radio SoC (System-on-Chip) to either an external antenna or to the onboard integral antenna. The only difference between the BGM22OS22A and the BGX220522A concerns the software running in the modules: the BGX220522A is a marketing variant Model differences derived from the BGM22OS22A where only a special application designed by the manufacturer can run. Such special application is developed using the same SDK and on top of the same BLE stack used by all other customers of the main model. Should there be any query regarding this declaration, please do not hesitate to contact the undersigned. Thank you for your attention to this matter. Place and date of issue (of this declaration): Espoo, 17 August 2020 Authorized Contact: Enrico Taddeo Job Title: Senior Applications and Certifications Engineer eMail: [email protected] Silicon Laboratories Finland Oy Alberga Business Park, Bertel Jungin aukio 3 Fl-02600 Espoo, Finland Phone: ÷358 9 435 5060 www.silabs.com

Silicon Laboratories Finland Oy Alberga Business Park, Bertel Jungin aukio 3 FI-02600 Espoo, Finland Phone: +358 9 435 5060 Page 1 of 3 www.silabs.com Photo(s) of the Bluetooth Low Energy (LE) wireless radio module with model name: BGM220S22A Figure 1: Top/Front External View of BGM220S22A Silicon Laboratories Finland Oy Alberga Business Park, Bertel Jungin aukio 3 FI-02600 Espoo, Finland Phone: +358 9 435 5060 Page 2 of 3 www.silabs.com Figure 2: Bottom/Rear External View of BGM220S22A Silicon Laboratories Finland Oy Alberga Business Park, Bertel Jungin aukio 3 FI-02600 Espoo, Finland Phone: +358 9 435 5060 Page 3 of 3 www.silabs.com Figure 3: Photo of the reference external dipole antenna

Silicon Laboratories Finland Oy Alberga Business Park, Bertel Jungin aukio 3 FI-02600 Espoo, Finland Phone: +358 9 435 5060 Page 1 of 2 www.silabs.com Top Markings of the Bluetooth Low Energy (LE) wireless radio module with model name: BGM220S22A Figure 1: Label / Top Markings of BGM220S22A Table 1: Label / Top Markings specification of BGM220S22A for contract manufacturer Silicon Laboratories Finland Oy Alberga Business Park, Bertel Jungin aukio 3 FI-02600 Espoo, Finland Phone: +358 9 435 5060 Page 2 of 2 www.silabs.com Table 2: Label / Top Markings definition of BGM220S22A from datasheet Packaging Label of the Bluetooth Low Energy (LE) wireless radio module with model name: BGM220S22A Figure 2: Packaging Label of BGM220S22A, dedicated to carry information related to regulatory certifications Notes: - Table 2 is taken from chapter 8.3 of datasheet, and is reported here to further clarify the exact content of the top markings, in particular the model name in first row and the key to orderable part number in second row. -The label in figure 2 is a companion to the main packaging label which carries among others the model name / orderable part number, trace coding, and manufacturer info.

Report No.: SA200602C21 Page No. 1 / 6 Report Format Version: 6.1.1 RF Exposure Report (Mobile mode) Report No.: SA200602C21 FCC ID: QOQ-BGM220S2 Test Model: BGM220S22A Series Model: BGX220S22A Received Date: Jun. 02, 2020 Test Date: Jun. 09 ~ Jul. 07, 2020 Issued Date: Aug. 24, 2020 Applicant: Silicon Laboratories Finland Oy Address: Alberga Business Park - Bldg D/Floor 5, Bertel Jungin aukio 3, 02600 ESPOO, FINLAND Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch Lin Kou Laboratories Lab Address: No. 47-2, 14th Ling, Chia Pau Vil., Lin Kou Dist., New Taipei City, Taiwan Test Location: No. 19, Hwa Ya 2nd Rd., Wen Hwa Vil., Kwei Shan Dist., Taoyuan City 33383, TAIWAN FCC Registration / Designation Number: 788550 / TW0003 This report is for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence, provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Unless specific mention, the uncertainty of measurement has been explicitly taken into account to declare the compliance or non-compliance to the specification. Report No.: SA200602C21 Page No. 2 / 6 Report Format Version: 6.1.1 Table of Contents Release Control Record .................................................................................................................................. 3 1 Certificate of Conformity ...................................................................................................................... 4 2 RF Exposure .......................................................................................................................................... 5 2.1 Limits for Maximum Permissible Exposure (MPE) .............................................................................. 5 2.2 MPE Calculation Formula ................................................................................................................... 5 2.3 Classification ....................................................................................................................................... 5 3 Calculation Result of Maximum Conducted Power ........................................................................... 6 Report No.: SA200602C21 Page No. 3 / 6 Report Format Version: 6.1.1 Release Control Record Issue No. Description Date Issued SA200602C21 Original release Aug. 24, 2020 Report No.: SA200602C21 Page No. 4 / 6 Report Format Version: 6.1.1 1 Certificate of Conformity Product: Bluetooth Low Energy wireless radio module Brand: Silicon Labs Test Model: BGM220S22A Series Model: BGX220S22A Sample Status: Engineering sample fully representing the production model Applicant: Silicon Laboratories Finland Oy Test Date: Jun. 09 ~ Jul. 07, 2020 Standards: FCC Part 2 (Section 2.1091) References Test Guidance: KDB 447498 D01 General RF Exposure Guidance v06 IEEE C95.3 -2002 The above equipment has been tested by Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch, and found compliance with the requirement of the above standards. The test record, data evaluation & Equipment Under Test (EUT) configurations represented herein are true and accurate accounts of the measurements of the sample’s RF characteristics under the conditions specified in this report. Prepared by : , Date:Aug. 24, 2020 Polly Chien / Specialist Approved by : , Date:Aug. 24, 2020 Bruce Chen / Senior Project Engineer Report No.: SA200602C21 Page No. 5 / 6 Report Format Version: 6.1.1 2 RF Exposure 2.1 Limits for Maximum Permissible Exposure (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Average Time (minutes) Limits For General Population / Uncontrolled Exposure 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f 2 )* 30 30-300 27.5 0.073 0.2 30 300-1500 ... ... f/1500 30 1500-100,000 ... ... 1.0 30 f = Frequency in MHz; *Plane-wave equivalent power density 2.2 MPE Calculation Formula Pd = (Pout*G) / (4*pi*r 2 ) where Pd = power density in mW/cm 2 Pout = output power to antenna in mW G = gain of antenna in linear scale pi = 3.1416 r = distance between observation point and center of the radiator in cm 2.3 Classification The antenna of this product, under normal use condition, is at least 20cm away from the body of the user. So, this device is classified as Mobile Device. Report No.: SA200602C21 Page No. 6 / 6 Report Format Version: 6.1.1 3 Calculation Result of Maximum Conducted Power Mode Frequency Band (MHz) Max. AV Power (dBm) Antenna Gain (dBi) Distance (cm) Power Density (mW/cm 2 ) Limit (mW/cm 2 ) Dipole antenna BT LE LE 1M 2402~2480 7.56 2.8 20 0.002 1 LE 2M 7.60 2.8 20 0.002 1 SRD - 2401 & 2481 7.61 2.8 20 0.002 1 Note: 1. Determining compliance based on the results of the compliance measurement, not taking into account measurement instrumentation uncertainty. 2. The EUT is capable of running the Bluetooth Low Energy protocols, and an additional custom protocol. However, in no circumstance the module will transmit using two or more protocols at the same time. 3. The abo…

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Report No.: SA200602C21-1 Page No. 1 / 6 Report Format Version: 6.1.1 RF Exposure Report (Portable mode) Report No.: SA200602C21-1 FCC ID: QOQ-BGM220S2 Test Model: BGM220S22A Series Model: BGX220S22A Received Date: Jun. 02, 2020 Test Date: Jul. 23, 2020 Issued Date: Aug. 24, 2020 Applicant: Silicon Laboratories Finland Oy Address: Alberga Business Park - Bldg D/Floor 5, Bertel Jungin aukio 3, 02600 ESPOO, FINLAND Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch Lin Kou Laboratories Lab Address: No. 47-2, 14th Ling, Chia Pau Vil., Lin Kou Dist., New Taipei City, Taiwan Test Location: No. 19, Hwa Ya 2nd Rd., Wen Hwa Vil., Kwei Shan Dist., Taoyuan City 33383, TAIWAN FCC Registration / Designation Number: 788550 / TW0003 This report is for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence, provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Unless specific mention, the uncertainty of measurement has been explicitly taken into account to declare the compliance or non-compliance to the specification. Report No.: SA200602C21-1 Page No. 2 / 6 Report Format Version: 6.1.1 Table of Contents Release Control Record .................................................................................................................................. 3 1 Certificate of Conformity ...................................................................................................................... 4 2 Evaluation Result .................................................................................................................................. 5 3 SAR Test Exclusion Thresholds .......................................................................................................... 6 Report No.: SA200602C21-1 Page No. 3 / 6 Report Format Version: 6.1.1 Release Control Record Issue No. Description Date Issued SA200602C21-1 Original release Aug. 24, 2020 Report No.: SA200602C21-1 Page No. 4 / 6 Report Format Version: 6.1.1 1 Certificate of Conformity Product: Bluetooth Low Energy wireless radio module Brand: Silicon Labs Test Model: BGM220S22A Series Model: BGX220S22A Sample Status: Engineering sample fully representing the production model Applicant: Silicon Laboratories Finland Oy Test Date: Jul. 23, 2020 Standards: FCC Part 2 (Section 2.1093) References Test Guidance: KDB 447498 D01 General RF Exposure Guidance v06 IEEE C95.1-1992 The above equipment has been tested by Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch, and found compliance with the requirement of the above standards. The test record, data evaluation & Equipment Under Test (EUT) configurations represented herein are true and accurate accounts of the measurements of the sample’s RF characteristics under the conditions specified in this report. Prepared by : , Date:Aug. 24, 2020 Polly Chien / Specialist Approved by : , Date:Aug. 24, 2020 Bruce Chen / Senior Project Engineer Report No.: SA200602C21-1 Page No. 5 / 6 Report Format Version: 6.1.1 2 Evaluation Result Following FCC KDB 447498 D01 “General SAR test exclusion guidance” The corresponding SAR Exclusion Threshold condition, listed below: 1) 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,16 where  f(GHz) is the RF channel transmit frequency in GHz.  Power and distance are rounded to the nearest mW and mm before calculation.  The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. 2) At 100 MHz to 6 GHz and for test separation distances > 50 mm, the SAR test exclusion threshold is determined according to the following: a) [Threshold at 50 mm in step 1) + (test separation distance - 50mm)·( f(MHz)/150)] mW, at 100MHz to 1500 MHz b) [Threshold at 50 mm in step 1) + (test separation distance - 50 mm)·10] mW at > 1500 MHz and ≤ 6 GHz 3) At frequencies below 100 MHz, the following may be considered for SAR test exclusion. a) The threshold at the corresponding test separation distance at 100 MHz in step 2) is multiplied by [1 + log(100/f(MHz))] for test separation distances > 50 mm and < 200 mm. b) The threshold determined by the equation in a) for 50 mm and 100 MHz is multiplied by ½ for test separation distances ≤ 50 mm. c) SAR measurement procedures are not established below 100 MHz. When SAR test exclusion cannot be applied, a KDB inquiry is required to determine SAR evaluation requirements for any te…

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