2AMWOFSC-BT691Bluetooth module

FSC-BT691 Datasheet Shenzhen Feasycom Technology Co.,Ltd www.feasycom.com -1- S BLE 5.1 Single Mode Bluetooth Module Datasheet Version 1.1 FSC-BT691 Datasheet Shenzhen Feasycom Technology Co.,Ltd www.feasycom.com -2- Copyright © 2013-2020 Feasycom Technology. All Rights Reserved. Feasycom Technology reserves the right to make corrections, modifications, and other changes to its products, documentation and services at anytime. Customers should obtain the newest relevant information before placing orders. To minimize customer product risks, customers should provide adequate design and operating safeguards. Without written permission from Feasycom Technology, reproduction, transfer, distribution or storage of part or all of the contents in this document in any form is prohibited. Revision History Version Data Notes 1.0 2020/07/25 Initial Version Fish 1.1 2020/9/24 Update General Specification Marsh Contact Us Shenzhen Feasycom Technology Co.,LTD Email: [email protected] Address: Room 2004A,20th Floor,Huichao Technology Building,Jinhai Road, Xixiang ,Baoan District,Shenzhen ,China. Tel: 86-755-27924639 Tel: 86-755-23062695 (Overseas) Contents FSC-BT691 Datasheet Shenzhen Feasycom Technology Co.,Ltd www.feasycom.com -3- 1. INTRODUCTION ............................................................................................................................................................... 3 2. GENERAL SPECIFICATION ................................................................................................................................................. 5 3. HARDWARE SPECIFICATION .......................................................................................................................................... 6 3.1 BLOCK DIAGRAM AND PIN DIAGRAM ......................................................................................................................................... 6 3.2 PIN DEFINITION DESCRIPTIONS ................................................................................................................................................. 6 4. PHYSICAL INTERFACE ....................................................................................................................................................... 7 4.1 POWER SUPPLY....................................................................................................................................................................... 7 4.2 RESET ................................................................................................................................................................................... 7 4.3 GENERAL PURPOSE ANALOG IO ................................................................................................................................................. 7 4.4 GENERAL PURPOSE DIGITAL IO .................................................................................................................................................. 8 4.5 RF INTERFACE ........................................................................................................................................................................ 8 4.6 SERIAL INTERFACES .................................................................................................................................................................. 8 4.6.1 UART........................................................................................................................................................................... 8 4.6.2 I 2 C Interface ................................................................................................................................................................ 9 5. ELECTRICAL CHARACTERISTICS ...................................................................................................................................... 10 5.1 ABSOLUTE MAXIMUM RATINGS ............................................................................................................................................... 10 5.2 DC ELECTRICAL CHARACTERISTICS（RECOMMENDED） .............................................................................................................. 10 5.3 AC ELECTRICAL CHARACTERISTICS ............................................................................................................................................ 10 6. MSL & ESD ..................................................................................................................................................................... 11 7. RECOMMENDED TEMPERATURE REFLOW PROFILE ........................................................................................................ 11 8. MECHANICAL DETAILS ................................................................................................................................................... 12 8.1 MECHANICAL DETAILS ............................................................................................................................................................ 12 9. HARDWARE INTEGRATION SUGGESTIONS ..................................................................................................................... 13 9.1 SOLDERING RECOMMENDATIONS ............................................................................................................................................. 13 9.2 LAYOUT GUIDELINES (INTERNAL ANTENNA) ................................................................................................................................ 13 9.3 LAYOUT GUIDELINES(EXTERNAL ANTENNA) ................................................................................................................................ 14 9.3.1 Antenna Connection and Grounding Plane Design .................................................................................................. 15 10. PRODUCT PACKAGING INFORMATION …

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Shenzhen Feasycom Technology Co., LTD Room 2004A, 20th Floor, Huichao Technology Building, Jinhai Road, Xixiang, Baoan District, Shenzhen, China Agent Authorization Company: Shenzhen Feasycom Technology Co., LTD Address: Room 2004A, 20th Floor, Huichao Technology Building, Jinhai Road, Xixiang, Baoan District, Shenzhen, China Product Name: Bluetooth module Model Number(s): FSC-BT691 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: Dec. 23, 2020 Name: Wan Zhifu Title: General Manager Company: Shenzhen Feasycom Technology Co., LTD

Shenzhen Feasycom Technology Co., LTD Room 2004A, 20th Floor, Huichao Technology Building, Jinhai Road, Xixiang, Baoan District, Shenzhen, China RE FCC ID: 2AMWOFSC-BT691 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, [Wan Zhifu] [General Manager] 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: 2AMWOFSC- BT691, Please refer to User Manual. Shenzhen Feasycom Technology Co., LTD Room 2004A, 20th Floor, Huichao Technology Building, Jinhai Road, Xixiang, Baoan District, Shenzhen, China (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.

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

External Photos INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2 BT Antenna INTERNAL VIEW OF EUT-3

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description Bluetooth module Model Name FSC-BT691 FCC ID 2AMWOFSC-BT691 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=2dBi (Numeric 1.58), π=3.14 BR 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 -1.108 0.77 0.00024 1

Page 1 of 49 FCC Test Report Report No.: AGC03285201201FE02 FCC ID : 2AMWOFSC-BT691 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : Bluetooth module BRAND NAME : Feasycom MODEL NAME : FSC-BT691 APPLICANT : Shenzhen Feasycom Technology Co., LTD DATE OF ISSUE : Dec. 22, 2020 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC03285201201FE02 Page 2 of 49 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Dec. 22, 2020 Valid Initial Release Report No.: AGC03285201201FE02 Page 3 of 49 TABLE OF CONTENTS 1. VERIFICATION OF COMPLIANCE .................................................................................................................. 5 2. GENERAL INFORMATION .............................................................................................................................. 6 2.1. PRODUCT DESCRIPTION ........................................................................................................................ 6 2.2. TABLE OF CARRIER FREQUENCYS ....................................................................................................... 6 2.3. RELATED SUBMITTAL(S)/GRANT(S) ....................................................................................................... 7 2.4. TEST METHODOLOGY ............................................................................................................................. 7 2.5. SPECIAL ACCESSORIES .......................................................................................................................... 7 2.6. EQUIPMENT MODIFICATIONS ................................................................................................................. 7 2.7. ANTENNA REQUIREMENT ....................................................................................................................... 7 3. MEASUREMENT UNCERTAINTY ................................................................................................................... 8 4. DESCRIPTION OF TEST MODES ................................................................................................................... 9 5. SYSTEM TEST CONFIGURATION ................................................................................................................ 10 5.1. CONFIGURATION OF TESTED SYSTEM ............................................................................................... 10 5.2. EQUIPMENT USED IN TESTED SYSTEM .............................................................................................. 10 5.3. SUMMARY OF TEST RESULTS .............................................................................................................. 10 6. TEST FACILITY .............................................................................................................................................. 11 7. PEAK OUTPUT POWER ................................................................................................................................ 12 7.1. MEASUREMENT PROCEDURE .............................................................................................................. 12 7.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 12 7.3. LIMITS AND MEASUREMENT RESULT .................................................................................................. 13 8. 6 DB BANDWIDTH ......................................................................................................................................... 15 8.1. MEASUREMENT PROCEDURE .............................................................................................................. 15 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 15 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................... 15 9. CONDUCTED SPURIOUS EMISSION........................................................................................................... 17 9.1. MEASUREMENT PROCEDURE .............................................................................................................. 17 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 17 9.3. MEASUREMENT EQUIPMENT USED .................................................................................................... 17 9.4. LIMITS AND MEASUREMENT RESULT .................................................................................................. 17 10. MAXIMUM CONDUCTED OUTPUT POWER SPECTRAL DENSITY ........................................................ 25 10.1. MEASUREMENT PROCEDURE ............................................................................................................ 25 10.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................. 25 10.3. MEASUREMENT EQUIPMENT USED .................................................................................................. 25 10.4. LIMITS AND MEASUREMENT RESULT................................................................................................ 25 11. RADIATED EMISSION ................................................................................................................................. 27 11.1. MEASUREMENT PROCEDURE ............................................................................................................ 27 11.2. TEST SETUP .......................................................................................................................................... 28 11.3. LIMITS AND MEASUREMENT RESULT................................................................................................ 29 11.4. TEST RESULT ........…

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Report No.: AGC03285201201FE02 Page 26 of 49 TEST PLOT OF SPECTRAL DENSITY FOR MIDDLE CHANNEL TEST PLOT OF SPECTRAL DENSITY FOR HIGH CHANNEL Report No.: AGC03285201201FE02 Page 27 of 49 11. RADIATED EMISSION 11.1. MEASUREMENT PROCEDURE 1. The EUT was placed on the top of the turntable 0.8 or 1.5 meter above ground. The phase center of the receiving antenna mounted on the top of a height-variable antenna tower was placed 3 meters far away from the turntable. 2. Power on the EUT and all the supporting units. The turntable was rotated by 360 degrees to determine the position of the highest radiation. 3. The height of the broadband receiving antenna was varied between one meter and four meters above ground to find the maximum emissions field strength of both horizontal and vertical polarization. 4. For each suspected emission, the antenna tower was scan (from 1 M to 4 M) and then the turntable was rotated (from 0 degree to 360 degrees) to find the maximum reading. 5. Set the test-receiver system to Peak or CISPR quasi-peak Detect Function with specified bandwidth under Maximum Hold Mode. 6. For emissions above 1GHz, use 1MHz RBW and 3MHz VBW for peak reading. Place the measurement antenna away from each area of the EUT determined to be a source of emissions at the specified measurement distance, while keeping the measurement antenna aimed at the source of emissions at each frequency of significant emissions, with polarization oriented for maximum response. The measurement antenna may have to be higher or lower than the EUT, depending on the radiation pattern of the emission and staying aimed at the emission source for receiving the maximum signal. The final measurement antenna elevation shall be that which maximizes the emissions. The measurement antenna elevation for maximum emissions shall be restricted to a range of heights of from 1 m to 4 m above the ground or reference ground plane. 7. When the radiated emissions limits are expressed in terms of the average value of the emissions, and pulsed operation is employed, the measurement field strength shall be determined by averaging over one complete pulse train, including blanking intervals, as long as the pulse train does not exceed 0.1 seconds. As an alternative (provided the transmitter operates for longer than 0.1 seconds) or in cases where the pulse train exceeds 0.1 seconds, the measured field strength shall be determined from the average absolute voltage during a 0.1 second interval during which the field strength is at its maximum values. 8.If the emissions level of the EUT in peak mode was 3 dB lower than the average limit specified, then testing will be stopped and peak values of EUT will be reported, otherwise, the emissions which do not have 3 dB margin will be repeated one by one using the quasi-peak method for below 1GHz. 9. For testing above 1GHz, the emissions level of the EUT in peak mode was lower than average limit (that means the emissions level in peak mode also complies with the limit in average mode), then testing will be stopped and peak values of EUT will be reported, otherwise, the emissions will be measured in average mode again and reported. 10. In case the emission is lower than 30MHz, loop antenna has to be used for measurement and the recorded data should be QP measured by receiver. High - Low scan is not required in this case. Report No.: AGC03285201201FE02 Page 28 of 49 11.2. TEST SETUP Radiated Emission Test-Setup Frequency Below 30MHz RADIATED EMISSION TEST SETUP 30MHz-1000MHz RADIATED EMISSION TEST SETUP ABOVE 1000MHz Report No.: AGC03285201201FE02 Page 29 of 49 11.3. 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. 11.4. 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.: AGC03285201201FE02 Page 30 of 49 RADIATED EMISSION BELOW 1GHZ EUT Bluetooth module Model Name FSC-BT691 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 3 Antenna Horizontal NO. Freq. [MHz] Level [dBμV/m] Factor [dB] Limit [dBμV/m] Margin [dB] Height [cm] Angle [°] Polarity 1 30.9700 31.01 10.02 40.00 8.99 100 177 Horizontal 2 64.9200 26.93 10.09 40.00 13.07 100 210 Horizontal 3 99.8400 25.73 11.30 43.50 17.77 100 346 Horizontal 4 159.980 0 24.75 14.94 43.50 18.75 100 120 Horizontal 5 315.180 0 34.09 16.48 46.00 11.91 200 183 Horizontal 6 366.590 0 30.75 18.50 46.00 15.25 100 70 Horizontal RESULT: PASS Report No.: AGC03285201201FE02 Page 31 of 49 EUT Bluetooth module Model Name FSC-BT691 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 3 Antenna Vertical NO. Freq. [MHz] Level [dBμV/m] Factor [dB] Limit [dBμV/m] Margin [dB] Height [cm] Angle [°] Polarity 1 30.9700 32.89 10.02 40.00 7.11 100 90 Vertical 2 54.2500 29.63 11.35 40.00 10.37 100 120 Vertical 3 99.8400 23.52 11.30 43.50 19.98 100 253 Vertical 4 190.050 0 26.46 12.53 43.50 17.04 100 0 Vertical 5 315.180 0 28.65 16.48 46.00 17.35 100 27 Vertical 6 366.590 0 29.36 18.50 46.00 16.64 100 54 Vertical RESULT: PASS Note: 1. Factor=Antenna Factor + Cable loss, Margin= Limit- Level. 2. All test modes had been tested. The mode 3 is the worst case and recorded in the report. Report No.: AGC03285201201FE02 Page 32 of 49 RADIATED EMISSION ABOVE 1GHZ EUT Bluetooth module Model Name FSC-BT691 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 1 Antenna Horizontal FrequencyMeter ReadingFactorEmission LevelLimitsMargin (MHz)(d…

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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