OMCBTAUD2Bluetooth Module

Product specifications (Bluetooth module) Product Model: F-3320 Document number: XZX_RD_SP_F 3320V1.0 Hardware version: V1.0 File version: V 1.0 Entry into force :2020-10-12 (Picture for reference only) Change record Vers ion Revised content Page Revision date Revisi on Audito r V1.0 New construction 16 2020-10-30 Li Jian Xiamen Sixin Micro Technology Co. Ltd Copyright © Xiamen Sixin Microtechnology Co., Ltd .2019.All rights reserved. Without the written permission of the Company, no unit or individual may extract or copy part or all of the contents of this document without authorization and shall not disseminate it in any form. Trademark Declaration And other Sixin micro trademarks are Xiamen Sixin Micro Technology Co., Ltd. trademark. All other trademarks or registered trademarks mentioned in this document are owned by their respective owners. Attention the products, services or features you purchase shall be subject to the commercial contract and terms of xiamen sixin micro-tech co., ltd. all or part of the products, services or features described in this document may not be within the scope of your purchase or use. Unless otherwise agreed in the contract, does not make any express or implied statement or guarantee of the contents of this document. Due to product version upgrades or other reasons, the contents of this document will be updated on a regular basis. Unless otherwise agreed, this document serves only as guidance for use and all statements, information and recommendations in this document do not constitute any express or implied warranty. Catalogue (Content) 1 Summary .............................................................................................................................................................. 4 2 Basic characteristics............................................................................................................................................. 4 3 Applications ......................................................................................................................................................... 4 4 Performance parameters ...................................................................................................................................... 5 7 Module Size Chart ................................................................................................................................................... 11 9 Notes ....................................................................................................................................................................... 15 10 Recommended reflux temperature ........................................................................................................................ 16 11 Applied circuits ..................................................................................................................................................... 16 1 Summary F -3320(QCC3021) Bluetooth module is an intelligent wireless audio data dual-mode transmission product developed by our company. It is a high-end and high-efficiency stereo wireless transmission scheme. The module adopts QCC3021 chip to provide high quality sound quality and compatibility for the module. Overall performance is more optimized.F -3320(QCC3021) Bluetooth module adopts driver-free mode. Customers only need to connect the module to the application product, which can quickly realize the wireless transmission of music and enjoy the fun of wireless music. 2 Basic characteristics • Bluetooth v5.0 compliance specification • 120MHz Qualcomm Audio DSP • 32MHz Development Application Processor • Flexible QSPI Flash • Programming platform • Advanced Audio Algorithm • High performance 24 stereo audio interface • Digital and analog microphone interfaces • Flexible PIO controllers and LED pins with PWM support • 1 Microphone noise reduction and echo cancellation technology • SBC,AA C audio codec • Supports serial interface: UART (I2C/SPI) USB 2.0 • Integrated lithium-ion charger 3 Applications • Bluetooth Audio • Bluetooth headset • No phone calls • Bluetooth Wireless Audio • Bluetooth Digital Transmission Application • Support for mobile interconnection peripherals • Bluetooth Smartphone 4 Performance parameters 4.1 Module parameters Module parameters Wireless standards Bluetooth Bluetooth V5.0 Antenna PCB Antenna Frequency range 2.402 GHz-2.480GHz Transmission power CLASS1 Receiving sensitivity Max=-95 DB Extended interface PIO, SPI, AIO, UART, USB, I2S, I2C, PWM, MIC, LIN, SPK (L/R) Support systems: Support for Android (android), Apple (IOS) and windows systems Audio decoding output: SBC,AAC Module dimensions 15 mm *24mm*2mm (LxWxH) SMD Certification information - 4.2 Recommended working conditions Scope of operation Min Typical Max Unit Operating temperature range -40 - +85 °C Battery 3.0 3.7 4.6 V 5V (USB VBUS) 4.75 5.0 6.5 V Digital I/O 1.7 1.8 3.6 V AIO/LED 0 - 6.5 V AUDIO-IN/OUT 0 - 1.95 V 4.3 Battery Input Pin Specification BAT Min Typical Max Unit Operating voltage 2.8 3.7 4.6 V Software power-off threshold - 3 - V Under voltage lockout rising threshold 2.47 2.6 2.73 V Under voltage lockout hysteresis 50 - 120 mV USB dead/weak battery rising threshold 3.14 3.3 3.46 V USB dead/weak battery hysteresis 50 - 120 mV 4.4 Charger Input Pin Specification VCHG Min Typical Max Unit Operating voltage (full device specification) 4.75 5.0 6.5 V Operating voltage (reduced charger specification) 4.0 5.0 6.5 V VCHG_PRESENT rising threshold 3.4 3.6 4.0 V VCHG_PRESENT hysteresis 70 - 150 mV Full operating range VCHG_PR ESENT - 6.5 V On chip pull-down (disabled when VCHG_PRESENT =1) 10 20 30 kΩ 4.5 Battery charge Trickle charge mode Min Typical Max Unit VPRE threshold (reading) 2 2.1 2.2 V VPRE threshold (falling) 1.9 2.0 2.1 V Trickle charge current： VCHG：4.25V to 6.5V VBAT：0V to 2.2V Full temperature range：-10°C to 125°C 1 - 50 mA Pre-charge mode Min Typical Max Unit VFAST threshold (reflect…

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Icon Health and Fitness, Inc. 1500 South 1000 West, Logan, Utah, United States, 84321, USA Agent Authorization Company: Icon Health and Fitness, Inc. Address: 1500 South 1000 West, Logan, Utah, United States, 84321, USA Product Name: Bluetooth Module Model Number(s): F-3320 Product Description: Bluetooth Module We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: Nov. 04, 2020 Name: Craig Jensen Title: Compliance Engineer Company: Icon Health and Fitness, Inc.

Icon Health and Fitness, Inc. 1500 South 1000 West, Logan, Utah, United States, 84321, USA Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Nov. 04, 2020 Subject; Request for Confidentiality FCC ID: OMCBTAUD2 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description Parts List Tune-up Procedure It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Craig Jensen Title: Compliance Engineer

Icon Health and Fitness, Inc. 1500 South 1000 West, Logan, Utah, United States, 84321, USA RE FCC ID: OMCBTAUD2 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, [Craig Jensen] [Compliance Engineer] 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 fixed. (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 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. The modular was labeled with its own FCC ID. The outside of device in to which the module is installed will labeled Contains TX FCC ID: OMCBTAUD2, Please refer to User Manual. Icon Health and Fitness, Inc. 1500 South 1000 West, Logan, Utah, United States, 84321, USA (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 modular is comply with all applicable FCC rules. Any modifications, not expressly approved by the manufacturer could void the authority to operate in these regions. (viii) The modular transmitter must comply with any applicable RF exposure requirements in its final configuration. This module compliance with RF Exposure requirements, please refer to MPE Report.

External Photos EXTERNAL VIEW-1 OF EUT EXTERNAL VIEW-2 OF EUT BT Antenna EXTERNAL VIEW-3 OF EUT EXTERNAL VIEW-4 OF EUT EXTERNAL VIEW-5 OF EUT EXTERNAL VIEW-6 OF EUT

FCC ID and IC Label Location 15mm*5mm FCC ID: OMCBTAUD2 IC: 3673A-BTAUD2 F-3320

Internal Photos INTERNAL VIEW-1 OF EUT INTERNAL VIEW-2 OF EUT

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description Bluetooth Module Model Name F-3320 FCC ID OMCBTAUD2 2. EVALUATION METHOD AND LIMIT Human exposure to RF emissions from mobile devices (47 CFR §2.1091) may be evaluated based on the MPE limits adopted by the FCC for electric and magnetic field strength and/or power density, as appropriate, since exposures are assumed to occur at distances of 20 cm or more from persons. LIMITS FOR GENERAL POPULATION / UNCONTROLLED EXPOSURE Frequency Range (MHz) E-field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm 2 ) Averaging Time |E| 2 , |H| 2 or S (Minutes) 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 *Note: 1. f= Frequency in MHz * Plane-wave Equivalent Power Density 2. The averaging time for General Population/Uncontrolled exposure to fixed transmitters is not applicable for mobile and portable transmitters. See 47 CFR §§2.1091 and 2.1093 on source-based time-averaging requirement for mobile and portable transmitters. S=PG/4πR² Where: S=power density P=power input to antenna G=power gain of the antenna in the direction of interest relative to an isotropic radiator R=distance to the center of radiation of the antenna CALCULATION A minimum test separation distance ≥ 20 cm is required between the antenna and radiating structures of the device and nearby persons to apply mobile device exposure limits. The distance must be at least 20 cm and fully supported by the operating and installation configurations of the transmitter and its antenna(s), according to the source-based time-averaged maximum power requirements of § 2.1091(d)(2). In cases where cable losses or other attenuations are applied to determine compliance, the most conservative operating configurations and exposure conditions must be evaluated. Antenna Gain=0dBi (Numeric 1), π=3.14 BR BLE Note: 1. Only the worst case recorded. 3. conclusion Compliance the RF exposure requirement Frequency Output Power Output Power Power Density Power Density Limit MHz dBm mW mW/cm 2 mW/cm 2 2480 6.185 4.15 0.0008 1 Frequency Output Power Output Power Power Density Power Density Limit MHz dBm mW mW/cm 2 mW/cm 2 2480 6.575 4.54 0.0009 1

Page 1 of 69 FCC Test Report Report No.: AGC02031201001FE03 FCC ID : OMCBTAUD2 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : Bluetooth Module BRAND NAME : C-chip MODEL NAME : F-3320 APPLICANT : Icon Health and Fitness, Inc. DATE OF ISSUE : Nov. 04, 2020 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC02031201001FE03 Page 2 of 69 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Nov. 04, 2020 Valid Initial Release Report No.: AGC02031201001FE03 Page 3 of 69 TABLE OF CONTENTS 1. VERIFICATION OF CONFORMITY .................................................................................................................. 5 2. GENERAL INFORMATION .............................................................................................................................. 6 2.1. PRODUCT DESCRIPTION ........................................................................................................................ 6 2.2. TABLE OF CARRIER FREQUENCYS ....................................................................................................... 6 2.3. RECEIVER INPUT BANDWIDTH .............................................................................................................. 7 2.4. EXAMPLE OF A HOPPING SEQUENCY IN DATA MODE ......................................................................... 7 2.5. EQUALLY AVERAGE USE OF FREQUENCIES AND BEHAVIOUR ......................................................... 7 2.6. RELATED SUBMITTAL(S) / GRANT (S) .................................................................................................... 8 2.7. TEST METHODOLOGY ............................................................................................................................. 8 2.8. SPECIAL ACCESSORIES ......................................................................................................................... 8 2.9. EQUIPMENT MODIFICATIONS ................................................................................................................. 8 2.10. ANTENNA REQUIREMENT..................................................................................................................... 8 3. MEASUREMENT UNCERTAINTY ................................................................................................................... 9 4. DESCRIPTION OF TEST MODES ................................................................................................................. 10 5. SYSTEM TEST CONFIGURATION ................................................................................................................ 11 5.1. CONFIGURATION OF EUT SYSTEM ...................................................................................................... 11 5.2. EQUIPMENT USED IN TESTED SYSTEM .............................................................................................. 11 5.3. SUMMARY OF TEST RESULTS .............................................................................................................. 11 6. TEST FACILITY .............................................................................................................................................. 12 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. 20DB BANDWIDTH ........................................................................................................................................ 20 8.1. MEASUREMENT PROCEDURE ............................................................................................................. 20 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 20 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................... 21 9. CONDUCTED SPURIOUS EMISSION........................................................................................................... 27 9.1. MEASUREMENT PROCEDURE ............................................................................................................. 27 Report No.: AGC02031201001FE03 Page 4 of 69 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 27 9.3. MEASUREMENT EQUIPMENT USED .................................................................................................... 27 9.4. LIMITS AND MEASUREMENT RESULT .................................................................................................. 27 10. RADIATED EMISSION ................................................................................................................................. 40 10.1. MEASUREMENT PROCEDURE ........................................................................................................... 40 10.2. TEST SETUP ......................................................................................................................................... 42 10.3. LIMITS AND MEASUREMENT RESULT ............................................................................................... 43 10.4. TEST RESULT........................................................................................................................................ 43 11. NUMBER OF HOPPING FREQUENCY ...............................................................................…

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Report No.: AGC02031201001FE03 Page 41 of 69 The following table is the setting of spectrum analyzer and receiver. Spectrum Parameter Setting Start ~Stop Frequency 9KHz~150KHz/RB 200Hz for QP Start ~Stop Frequency 150KHz~30MHz/RB 9KHz for QP Start ~Stop Frequency 30MHz~1000MHz/RB 120KHz for QP Start ~Stop Frequency 1GHz~26.5GHz 1MHz/3MHz for Peak, 1MHz/3MHz for Average Receiver Parameter Setting Start ~Stop Frequency 9KHz~150KHz/RB 200Hz for QP Start ~Stop Frequency 150KHz~30MHz/RB 9KHz for QP Start ~Stop Frequency 30MHz~1000MHz/RB 120KHz for QP Report No.: AGC02031201001FE03 Page 42 of 69 10.2. TEST SETUP Radiated Emission Test-Setup Frequency Below 30MHz RADIATED EMISSION TEST SETUP 30MHz-1000MHz RADIATED EMISSION TEST SETUP ABOVE 1000MHz Report No.: AGC02031201001FE03 Page 43 of 69 10.3. LIMITS AND MEASUREMENT RESULT 15.209 Limit in the below table has to be followed Frequencies (MHz) Field Strength (microvolts/meter) Measurement Distance (meters) 0.009~0.490 2400/F(kHz) 300 0.490~1.705 24000/F(kHz) 30 1.705~30.0 30 30 30~88 100 3 88~216 150 3 216~960 200 3 Above 960 500 3 Note: All modes were tested for restricted band radiated emission, the test records reported below are the worst result compared to other modes. 10.4. TEST RESULT RADIATED EMISSION BELOW 30MHz The amplitude of spurious emissions from 9kHz to 30MHz which are attenuated more than 20 dB below the permissible value need not be reported. Report No.: AGC02031201001FE03 Page 44 of 69 RADIATED EMISSION BELOW 1GHz EUT Bluetooth Module Model Name F-3320 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 9 Antenna Horizontal RESULT: PASS Report No.: AGC02031201001FE03 Page 45 of 69 Report No.: AGC02031201001FE03 Page 46 of 69 EUT Bluetooth Module Model Name F-3320 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 9 Antenna Vertical RESULT: PASS Note: 1. Factor=Antenna Factor + Cable loss, Margin=Measurement-Limit. 2. All test modes had been pre-tested. The mode 9 is the worst case and recorded in the report. Report No.: AGC02031201001FE03 Page 47 of 69 RADIATED EMISSION ABOVE 1GHz EUT Bluetooth Module Model Name F-3320 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 7 Antenna Horizontal FrequencyMeter ReadingFactorEmission LevelLimitsMargin (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) 4804.00044.530.0844.6174-29.39 peak 4804.00035.250.0835.3354-18.67 AVG 7206.00040.672.2142.8874-31.12 peak 7206.00031.942.2134.1554-19.85 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type EUT Bluetooth Module Model Name F-3320 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 7 Antenna Vertical FrequencyMeter ReadingFactorEmission LevelLimitsMargin (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) 4804.00043.860.0843.9474-30.06 peak 4804.00034.370.0834.4554-19.55 AVG 7206.00040.122.2142.3374-31.67 peak 7206.00031.332.2133.5454-20.46 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type Report No.: AGC02031201001FE03 Page 48 of 69 EUT Bluetooth Module Model Name F-3320 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 8 Antenna Horizontal FrequencyMeter ReadingFactorEmission LevelLimitsMargin (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) 4882.00042.790.1442.9374-31.07 peak 4882.00034.630.1434.7754-19.23 AVG 7323.00040.582.3642.9474-31.06 peak 7323.00031.452.3633.8154-20.19 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type EUT Bluetooth Module Model Name F-3320 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 8 Antenna Vertical FrequencyMeter ReadingFactorEmission LevelLimitsMargin (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) 4882.00042.030.1442.1774-31.83 peak 4882.00033.970.1434.1154-19.89 AVG 7323.00039.752.3642.1174-31.89 peak 7323.00030.882.3633.2454-20.76 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type Report No.: AGC02031201001FE03 Page 49 of 69 EUT Bluetooth Module Model Name F-3320 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 9 Antenna Horizontal FrequencyMeter ReadingFactorEmission LevelLimitsMargin (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) 4960.00047.950.2248.1774-25.83 peak 4960.00039.420.2239.6454-14.36 AVG 7440.00044.842.6447.4874-26.52 peak 7440.00034.182.6436.8254-17.18 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type EUT Bluetooth Module Model Name F-3320 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 9 Antenna Vertical FrequencyMeter ReadingFactorEmission LevelLimitsMargin (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) 4960.00046.770.2246.9974-27.01 peak 4960.00037.420.2237.6454-16.36 AVG 7440.00043.892.6446.5374-27.47 peak 7440.00034.542.6437.1854-16.82 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type RESULT: PASS Note: The amplitude of other spurious emissions from 1G to 25 GHz which are attenuated more than 20 dB below the permissible value need not be reported. Factor = Antenna Factor + Cable loss - Amplifier gain, Over=Measure-Limit. The “Factor” value can be calculated automatically by software of measurement system. All test modes had been tested. The 8DPSK modulation is the worst case and recorded in the report. Report No.: AGC02031201001FE03 Page 50 of 69 TEST RESULT FOR RESTRICTED BANDS REQUIREMENTS EUT Bluetooth Module Model Name F-3320 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 7 Antenna Horizontal PK AV RESULT: PASS Report No.: AGC02031201001FE03 Page 51 of 69 EUT Bluetooth Module Model Name F-3320 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 7 Antenna Vertical PK AV RESULT: PASS Report No.: AGC0203120100…

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Test Setup Photos RADIATED EMISSION TEST SETUP BELOW 1GHz RADIATED EMISSION TEST SETUP ABOVE 1GHz CONDUCTED EMISSION TEST SETUP CONDUCTED TEST SETUP