2AMWOFSC-BT825Bluetooth module

FSC-BT825 深圳市飞易通科技有限公司 www.feasycom.com FSC-BT825 4.2 Dual Mode Bluetooth Module Data Sheet Document Type: FSC-BT825 Document Version: V1.1 Release Date: Jun 21. 2019 Contact Us Shenzhen Feasycom Technology Co.,LTD Email: [email protected] Address: Room 2004-2005,20th Floor,Huichao Technology Building,Jinhai Road,Xixiang ,Bao an District,Shenzhen,518100,China. Tel: 86-755-27924639, 86-755-23062695 Shenzhen Feasycom echnology o.,Ltd FSC-BT825 深圳市飞易通科技有限公司 www.feasycom.com Release Record Version Number Release Date Comments Revision 1.0 2016-06-24 First Release Revision 1.1 2019-06-21 1,Upgrade Bluetooth version to BT4.2 2,Modify the description of the error Shenzhen Feasycom echnology o.,Ltd FSC-BT825 深圳市飞易通科技有限公司www.feasycom.com 1. INTRODUCTION FSC-BT825 is a fully integrated Bluetooth module that complies with Bluetooth 4.2 dual mode protocols (BR/EDR and LE). It supports SPP, HID, GATT, ATT, and other profiles. It integrates Baseband controller and RF antenna in a small package, so the designers can have better flexibilities for the product shapes. FSC-BT825 can be communicated by UART port. With Feasycom’s Bluetooth stack, Customers can easily transplant to their software. Please refer to Feasycom stack design guide. 1.1 Block Diagram Shenzhen Feasycom echnology o.,Ltd FSC-BT825 深圳市飞易通科技有限公司www.feasycom.com 1.2 Feature ◆ Fully qualified Bluetooth 4.2/4.0/3.0/2.1/2.0/1.2/1.1 ◆ Postage stamp sized form factor ◆ Low power ◆ Class 1.5 support(high output power) ◆ The default UART Baud rate is 115.2Kbps and can support from 1200bps up to 921.6Kbps ◆ UART, PCM hardware interfaces ◆ Bluetooth stack profiles support: SPP, HID, GATT, ATT, GAP ◆ Support Apple MFi (iAP2), iBeacon 1.3 Application ◆ Smart Watch and Bluetooth Bracelet ◆ Health & Medical devices ◆ Wireless POS ◆ Measurement and monitoring systems ◆ Industrial sensors and controls ◆ Asset tacking Shenzhen Feasycom echnology o.,Ltd FSC-BT825 深圳市飞易通科技有限公司www.feasycom.com 2.GENERAL SPECIFICATION General Specification Chip Set RTL8761 Product ID FSC-BT825 Dimension 10.8mm(W) x 13.5mm(L) x 1.8mm(H) Bluetooth Specification Bluetooth V4.2 (Dual Mode) Power Supply 3.3 Volt DC Output Power 5.5 dBm (Class 1.5) [email protected]%BER Frequency Band 2.402GHz -2.480GHz ISM band ModulationGFSK, π/4-DQPSK, 8-DPSK Baseband Crystal OSC 40MHz Hopping & channels 1600hops/sec, 1MHz channel space,79 Channels(BT 4.2 to 2MHz channel space) RF Input Impedance 50 ohms Antenna Internal (Default) External (Option) Interface UART, PCM Profile SPP, HID, GATT, ATT, GAP Advanced Feature MFi, Airsync, iBeacon Temperature -20ºC to +70 ºC Humidity 10%~95% Non-Condensing Environmental RoHS Compliant Table 1 Shenzhen Feasycom echnology o.,Ltd FSC-BT825 深圳市飞易通科技有限公司www.feasycom.com 3. PHYSICAL CHARACTERISTIC Figure 2： FSC-BT825 PIN Diagram Figure 3： Pin Configuration and Package Dimensions（TOP VIEW） Shenzhen Feasycom echnology o.,Ltd FSC-BT825 深圳市飞易通科技有限公司www.feasycom.com 4.PIN DEFINITION DESCRIPTIONS Pin Pin Name Pad Type Description 1 GNDVSS Power Ground 2 PCM-CLK Bi-dire ctional Synchronous data clock(operating votage level: 3.3V) 3 PCM_OUT CMOS output Synchronous data output(operating votage level: 3.3V) 4 PCM_IN CMOS input Synchronous data input(operating votage level: 3.3V) 5 PCM-SYNC Bi-directional Synchronous data sync(operating votage level: 3.3V) 6 CLK_IN CMOS input 32.768kHZ clock in Connect to external clock(optional) NC (default) 7 GND VSS Power Ground 8 GND VSS Power Ground 9 VDD_3V3 VDD Power supply voltage 3.3V 10 BT_Enable CMOS input Module enable input(active high) Note: VDD_3V3 must be stable before pulling up BT_Enable 11 UART_RX CMOS input UART data input 12 UART_TX CMOS output UART data output 13 UART_RTS CMOS output UART request to send active low 14 UART_CTS CMOS input UART clear to send active low 15 GND VSS Power Ground 16 RF RF_IN/ OUT Bluetooth 50ohm transmitter output/receiver input NC if using internal antenna(default) Connect to external antenna(optional) Table 2 5. Interface Characteristics 5.1 UART Interface Four signals are used to implement the UART function. When FSC-BT825 is connected to another digital device, UART_RX and UART_TX transfer data between the two devices. The remaining two signals, UART_CTS and UART_RTS, can be used to implement RS232 hardware flow control where both are active low indicators. Shenzhen Feasycom Technology C o.,Ltd FSC-BT825 深圳市飞易通科技有限公司www.feasycom.com The interfa ce consists of four-line connection as described in below: Signal name Driving source Description UART-TX FSC-BT825 module Data from FSC-BT825 module UART-RXHostData from Host UART-RTS FSC-BT825 module Request to send output of FSC-BT825 module UART-CTS Host Clear to send input of FSC-BT825 module Table 3 Default Data Format Property Possible Values Baudrate 115. 2 Kbps Flow Control None Data bit length 8bit ParityNone Number of Stop Bits 1 Table 4 Table 5. UART Interface Power-On Timing Parameters Shenzhen Feasycom Technology C o.,Ltd FSC-BT825 深圳市飞易通科技有限公司www.feasycom.com Figure 4: UART Interface Waveform PIN diagram 5.1.1 UART Interface Power-On Sequence The UART interface power-on sequence differs depe nding on whether or not host flow control is supported. UART Hardware Flow Control Not Supported Figure 5: UART Power-On Sequence without Hardware Flow Control Shenzhen Feasycom Technology C o.,Ltd FSC-BT825 深圳市飞易通科技有限公司www.feasycom.com UART Hardware Flow Control Supported Figur e 6: UART Power On Sequence with Hardware Flow Control SymbolDescription T33ramp 3.3V Power Pre-Charge Ramp Up Duration Before Formal Power Up. We recommend that a 3.3V power-on and then power-off sequence is executed by the host controller before the formal power on sequence. This procedure can eliminate host card detection issues when power ramp up duration is too long, or when a system warm reboot fails. Toff The duration 3.3V is cut off before formal power up. T33ramp The 3.3V main power ramp up duration. T12ramp The internal 1.2V ramp up duration. TPOR The d…

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Shenzhen Feasycom Technology Co.,Ltd Agent Authorization Company: Shenzhen Feasycom Technology Co.,Ltd Address: Room 2004A, 20th Floor, Huichao Technology Building, Jinhai Road, Xixiang, Baoan District Product Name: Bluetooth module Model Number(s): FSC-BT825 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: 2021-05-17 Name: Wan Zhifu Company: Shenzhen Feasycom Technology Co., LTD

Shenzhen Feasycom Technology Co., LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2021-05-11 Subject; Request for Confidentiality FCC ID: 2AMWOFSC-BT825 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 Parts List Operational Description Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. 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 Shenzhen Feasycom Technology Co., LTD Contact person: Wan Zhifu

Shenzhen Feasycom Technology Co., LTD RE FCC ID: 2AMWOFSC-BT825 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 ] 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- BT825, Please refer to User Manual. Shenzhen Feasycom Technology Co., LTD (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 operates under Part 15 .247 which is exempt from RF exposure evaluation owing to the very low operating power.

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

FCC ID Label Location 3mm&10mm FCC ID: 2AMWOFSC-BT825

Internal Photos OPEN VIEW OF EUT INTERNAL VIEW OF EUT-1 BT Antenna

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description Bluetooth module Model Name FSC-BT825 FCC ID 2AMWOFSC-BT825 2. EVALUATION METHOD According to 447498 D01 General RF Exposure Guidance v06 The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. Where f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation 3. CALCULATION BR/EDR: P t = 4.645dBm=2.91mW The value of the Maximum output power P t is referred to the test report of the CFR47 §15.247. The result for RF exposure evaluation SAR=(2.91mW /5mm) .[√2.402GHz)]=0.90<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. BLE: P t = 6.140dBm=4.11mW The value of the Maximum output power P t is referred to the test report of the CFR47 §15.247. The result for RF exposure evaluation SAR=(4.11mW /5mm) .[√2.440GHz)]=1.28<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. 4. CONCLUSION The SAR evaluation is not required.

Page 1 of 68 FCC Test Report Report No.: AGC03285210402FE03 FCC ID : 2AMWOFSC-BT825 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : Bluetooth module BRAND NAME : Feasycom MODEL NAME : FSC-BT825 APPLICANT : Shenzhen Feasycom Technology Co., LTD DATE OF ISSUE : May 11, 2021 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC03285210402FE03 Page 2 of 68 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / May 11, 2021 Valid Initial Release Report No.: AGC03285210402FE03 Page 3 of 68 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 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 27 Report No.: AGC03285210402FE03 Page 4 of 68 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.: AGC03285210402FE03 Page 51 of 68 EUT Bluetooth module Model Name FSC-BT825 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 9 Antenna Horizontal PK AV RESULT: PASS Report No.: AGC03285210402FE03 Page 52 of 68 EUT Bluetooth module Model Name FSC-BT825 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 9 Antenna Vertical PK AV RESULT: PASS Note: The factor had been edited in the “Input Correction” of the Spectrum Analyzer. The 8DPSK modulation is the worst case and recorded in the report. Report No.: AGC03285210402FE03 Page 53 of 68 11. NUMBER OF HOPPING FREQUENCY 11.1. MEASUREMENT PROCEDURE The EUT shall have its hopping function enabled. Use the following spectrum analyzer settings: 1. Span: The frequency band of operation. Depending on the number of channels the device supports, it may be necessary to divide the frequency range of operation across multiple spans, to allow the individual channels to be clearly seen. 2. RBW: To identify clearly the individual channels, set the RBW to less than 30% of the channel spacing or the 20 dB bandwidth, whichever is smaller. 3. VBW ≥ RBW. Sweep: Auto. Detector function: Peak. Trace: Max hold. 4. Allow the trace to stabilize. 11.2. TEST SETUP (BLOCK DIAGRAM OF CONFIGURATION) Same as described in section 8.2 11.3. MEASUREMENT EQUIPMENT USED The same as described in section 6 11.4. LIMITS AND MEASUREMENT RESULT TOTAL NO. OF HOPPING CHANNEL LIMIT (NO. OF CH) MEASUREMENT (NO. OF CH) RESULT >=15 79 PASS TEST PLOT FOR NO. OF TOTAL CHANNELS Note: The GFSK modulation is the worst case and recorded in the report. Report No.: AGC03285210402FE03 Page 54 of 68 12. TIME OF OCCUPANCY (DWELL TIME) 12.1. MEASUREMENT PROCEDURE The EUT shall have its hopping function enabled. Use the following spectrum analyzer settings: 1. Span: Zero span, centered on a hopping channel. 2. RBW shall be≤channel spacing and where possible RBW should be set >> 1 / T, where T is the expected dwell time per channel. 3. Sweep: As necessary to capture the entire dwell time per hopping channel; where possible use a video trigger and trigger delay so that the transmitted signal starts a little to the right of the start of the plot. The trigger level might need slight adjustment to prevent triggering when the system hops on an adjacent channel; a second plot might be needed with a longer sweep time to show two successive hops on a channel. 4. Detector function: Peak. Trace: Max hold. 5. Use the marker-delta function to determine the transmit time per hop. 6. Repeat the measurement using a longer sweep time to determine the number of hops over the period specified in the requirements. The sweep time shall be equal to, or less than, the period specified in the requirements. Determine the number of hops over the sweep time and calculate the total number of hops in the period specified in the requirements, using the following equation: (Number of hops in the period specified in the requirements) = (number of hops on spectrum analyzer) × (period specified in the requirements / analyzer sweep time) 7. The average time of occupancy is calculated from the transmit time per hop multiplied by the number of hops in the period specified in the requirements. 8. 12.2. TEST SETUP (BLOCK DIAGRAM OF CONFIGURATION) Same as described in section 8.2 12.3. MEASUREMENT EQUIPMENT USED The same as described in section 6 12.4. LIMITS AND MEASUREMENT RESULT Channel Time of Pulse for DH5 (ms) Number of hops in the period specified in the requirements Sweep Time (ms) Limit (ms) Low 2.898 30*4 347.753 400 Middle 2.898 29*4 336.152 400 High 2.898 30*4 347.755 400 Note: The 8DPSK modulation is the worst case and recorded in the report. Report No.: AGC03285210402FE03 Page 55 of 68 TEST PLOT OF LOW CHANNEL Report No.: AGC03285210402FE03 Page 56 of 68 TEST PLOT OF MIDDLE CHANNEL Report No.: AGC03285210402FE03 Page 57 of 68 TEST PLOT OF HIGH CHANNEL Report No.: AGC03285210402FE03 Page 58 of 68 13. FREQUENCY SEPARATION 13.1. MEASUREMENT PROCEDURE The EUT shall have its hopping function enabled. Use the following spectrum analyzer settings: 1. Span: Wide enough to capture the peaks of two adjacent channels. 2. RBW: Start with the RBW set to approximately 30% of the channel spacing; adjust as necessary to best identify the center of each individual channel. 3. Video (or average) bandwidth (VBW) ≥ RBW. 4. Sweep: Auto. e) Detector function: Peak. f) Trace: Max hold. g) Allow the trace to stabilize. Use the marker-delta function to determine the separation between the peaks of the adjacent channels. 13.2. TEST SETUP (BLOCK DIAGRAM OF CONFIGURATION) Same as described in section 6.2 13.3. MEASUREMENT EQUIPMENT USED The same as described in section 6.3 13.4. LIMITS AND MEASUREMENT RESULT TEST MODE CHANNEL SEPARATION LIMIT RESULT MHz Pass Hopping Mode 1.005 >= 2/3 20 dB BW TEST PLOT FOR FREQUENCY SEPARATION Note: The GFSK modulation is the worst case and recorded in the report. Report No.: AGC03285210402FE03 Page 59 of 68 14. FCC LINE CONDUCTED EMISSION TEST 14.1. LIMITS OF LINE CONDUCTED EMISSION TEST Frequency Maximum RF Line Voltage Q.P. (dBμV) Average (dBμV) 150kHz~500kHz 66-56 56-46 500kHz~5MHz 56 46 5MHz~30MHz 60 50 Note: 1. The lower limit shall apply at the transition frequency. 2. The limit decreases linearly with the logarithm of the frequency in the range 0.15 MHz to 0.50 MHz. 14.2. BLOCK DIAGRAM OF LINE CONDUCTED EMISSION TEST EUT & Support Units Report No.: AGC03285210402FE03 Page 60 of 68 14.3. PRELIMINARY PROCEDURE OF LINE CONDUCTED EMISSION TEST 1. The equipment was set up as per the test configuration to simulate typical actual usage per the user’s manual. When the EUT is a tabletop system, a wooden table with a height of 0.8 meters is used and is placed on the ground plane as per ANSI C63.10 (see Test Facility for the dimensions of the ground plane used). When the EUT is a floor-standing equipment, it is plac…

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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