YE3FSC-BT909CBluetooth Module

FSC-BT909C 1 FSC-BT909C 4.2 Dual Mode Bluetooth Module Data Sheet Document Type: FSC-BT909C Document Version: V1.3 Release Date: August.29. 2022 FSC-BT909C 2 Contact Us (Module suppliers) Shenzhen Feasycom Co.,LTD Email: [email protected] Address: Rm 508, Building A, Fenghuang Zhigu, No.50, T iezai Road, Xixiang, Baoan District, Shenzhen, 518102, China Tel: 86-755-27924639 Release Record Version Number Release Date Comments Revision 1.0 2022-07-8 First Release Revision 1.1 2022-07-11 Add application principle diagram Revision 1.2 2022-07-11 Restricted Area Size correction Revision 1.3 2022-08-29 Pin description changed FSC-BT909C 3 1.INTRODUCTION FSC-BT909C is a bluetooth 4.2 Smart Ready device ( with BR/EDR & LE support simultaneo usly ) . It is a small form factor, highly power and highly economic Bluetooth radio module that allows OEM to add wireless capability to their products. The module supports multiple interfaces that make it simple to integrate into fully certified embedded Bluetooth solutions. With AT programming interfaces, designers can easily customize their applications to support different Bluetooth profiles, such HS/HF, A2DP, AVRCP, OPP, DUN, SPP, and etc. The module supports Bluetooth® Enhanced Data Rate (EDR) and delivers up to 3 Mbps data rate for distances to 100M. The module is an appropriate product for designers who want to add wireless capability to their products. The supported remote devices’ OS are iOS, Android, and Windows. 1.1 Feature ◆ Fully qualified Bluetooth 4.2/3.0/2.1/2.0/1.2/1.1 ◆ Postage stamp sized form factor, ◆ Class 1 support (high output power)Low power ◆ Class 1 support(high output power) ◆ The default UART Baud rate up to 921Kbps. ◆ UART, I 2 C, PCM/I 2 S data connection interfaces. ◆ Profiles including HS/HF, A2DP, AVRCP, OPP, DUN, SPP, HID,BLE ◆ RoHS compliant ◆ FCC, CE Certified FSC-BT909C 4 1.2 Application ◆ Cable replacement ◆ Portable Multimedia players ◆ High quality stereo headsets ◆ High quality mono headsets ◆ Hands-free car kits ◆ Wireless speakers ◆ Bluetooth-Enable Automotive Dashboards ◆ VOIP handsets ◆ Medical devices ◆ Barcode and RFID scanners ◆ Industrial devices 2.GENERAL SPECIFICATION General Specification ChipSet BT4.2 Dual Mode Product ID FSC-BT909C Dimension 13mm(W) x 26.9mm(L) x 2.2mm(H) (Tolerance: ±0.1mm) Bluetooth Specification Bluetooth V4.2 (Dual Mode) Power Supply 3.3 Volt DC Output Power see test report Sensitivity [email protected]%BER Frequency Band 2.402GHz -2.480GHz ISM band Modulation GFSK 8DPSK DQPSK, GFSK Baseband Crystal OSC 26MHz Hopping & channels 1600hops/sec, 1MHz channel space,79 Channels(BT 4.2 to 2MHz channel space) RF Input Impedance 50 ohms FSC-BT909C 5 Antenna PCB antenna, 2.4G Terminal Antenna Interface Data: UART (Standard), I 2 C Audio: MIC In (Standard), PCM/I 2 S Others: PIO, AIO, Touch sensor, PWM. USB 2.0 Profile SPP, GATT(BLE Standard) MFI, Airsync, ANCS, iBeacon, HID HS/HF, A2DP, AVRCP Temperature -20ºC to +85ºC Humidity 10%~95% Non-Condensing Environmental RoHS Compliant MSL grade: MSL 3 ESD grade Human Body Model: Class-2 Machine Model: Class-B Table 1 3.PHYSICAL CHARACTERISTIC Dimension： 13mm(W) x 26.9mm(L) x 2.2mm(H) Tolerance: ±0.2mm Module size: 13mm X 26.9mm Tolerance: ±0.2mm Pad size:1mmX0.8mm Tolerance: ±0.2mm Pad pitch:1.5mm Tolerance: ±0.1mm FSC-BT909C 6 Figure 2 FSC-BT909C 7 4.PIN DEFINITION DESCRIPTIONS 21 14151617181920 13 12 11 10 9 8 7 6 5 4 3 33 22 23 24 25 26 27 28 29 30 UART_TX NC PIO4 NC/UART_RTS I2 S_CK I2S_SD_IN I2 S_SD_OUT I2S_WS PIO12/Tran/AIO0 PIO13/Disc/AIO1 RESET 31 32 2 1 34 UART_RX NC/UART_CTS VDD_3V3 GND NC PIO 21 MIC_BIAS MIC- MIC+ NC NC GND GND NC PIO2 PIO3 PIO5 PIO6 PIO7 NC PIO9 PIO10 NC 35 36 GND EXT_ANT Figure 3: FSC-BT909C PIN Diagram Pin NO. Pin Name Type Pin Descriptions 1 UART_TX CMOS output UART data output 2 UART_RX CMOS input UART data input 3 UART_CTS CMOS input UART clear to send active low (NC by Default) 4 UART_RTS CMOS output UART request to send active low(NC by Default) 5 I2S_CK Bi-directional I 2 S CLK (BCLK) 6 I2S_SD_OUT Bi-directional I 2 S Data Output 7 I2S_SD_IN Bi-directional I 2 S Data Input 8 I2S_WS Bi-directional I 2 S Chip Select For Synchronous Serial Interface 9 PIO12/Tran/AI O0 I/O Programmable input/output line Alternative Function 1: Analogue programmable I/O line. Alternative Function 2: Host MCU change UART FSC-BT909C 8 transmission mode. 10 PIO/13Disc/AI O1 I/O Programmable input/output line Alternative Function 1: Analogue programmable I/O line. Alternative Function 2: Host MCU disconnect bluetooth. 11 RESET CMOS input Reset if low. Input debounced so must be low for >5ms to cause a reset. 12 VDD_3V3 VDD Power supply voltage 3.3V 13 GND VSS Power Ground 14 NC -- -- 15 PIO21 Bi-directional Programmable input/output line 16 MIC_BIAS VDD MIC_VDD 17 MIC- Analogue Input MIC- Input 18 MIC+ Analogue Input MIC+ Input 19 NC -- NC—Do not to GND 20 NC -- NC—Do not to GND 21 GND VSS Power Ground 22 GND VSS Power Ground 23 NC -- -- 24 NC -- -- 25 PIO2 Bi-directional Programmable input/output line 26 PIO3 Bi-directional Programmable input/output line 27 PIO4 Bi-directional Programmable input/output line Alternative Function: PA_EN pin, active high 28 PIO5 Bi-directional Programmable input/output line 29 PIO6 Bi-directional Programmable input/output line Alternative Function: I 2 C Serial Clock input/output 30 PIO7 Bi-directional Programmable input/output line Alternative Function:I 2 C Serial Data input/output 31 NC -- -- 32 PIO9 Bi-directional Programmable input/output line Alternative Function: LED(Default) 33 PIO10 Bi-directional Programmable input/output line Alternative Function: BT Status(Default) FSC-BT909C 9 34 NC -- -- 35 GND VSS Power Ground 36 EXT_ANT RF signal output By default, this PIN is an empty feet. This PIN can connect to an external antenna to improve the Bluetooth signal coverage. If you need to use an external antenna, by modifying the module on the 0R resistance to block out the on-board antenna; Or contact Feasy…

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Applicant Declaration QSF27-14-04 Rev 1.0 Rev. Feb 6, 2023 Page 1 of 1 Original Issue: Jan. 4, 2021 SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Legal Business Name DT Research, Inc. Address 3RD FL NO 36 WUQUAN 7TH RD WUGU DISTRICT NEW TAIPEI Taiwan Grantee Code YE3 FCC ID YE3FSC-BT909C Authorized Contact Name JS Hsu Contact Email [email protected] Contact Phone 886-2-2298-1039 ext. 309 I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare; a) in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. b) in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for: (1) labeling the equipment with the exact FCC ID as specified in this application, (2) compliance statement labeling pursuant to the applicable rules, (3) compliance of the equipment with the applicable technical rules, c) if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCC’s technical requirements. d) in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. e) in accordance with ISO 17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements. (1) the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. (2) the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. (3) the Applicant shall, upon request by SGS, at the Applicant’s expense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f) neither the Applicant nor any party to the application is subject to a denial of Federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a “party” for these purposes. g) the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc.(TCB) terms and conditions. Link to CFRs: https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs: https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100: https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Link to the Covered List: Covered List [DT Research, Inc.] (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. [DT Research, Inc.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] identified on the Covered list, established pursuant to §1.50002, as an entity producing “covered” equipment. Applicant Signature: Date: 2023-06-01 Print Name: JS Hsu Title: Manager *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database

UNITED STATES DESIGNATED AGENT LETTER Date: 2023-06-01 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Applicant U.S. designated agent Company Name: DT Research, Inc. Company Name: DT Research, Inc. Grantee Code: YE3 FRN: Contact Name: 0019830793 JS Hsu Contact Name: JS Hsu Address: 2000 Concourse Drive, San Jose, CA 95131, USA Address: 3RD FL NO 36 WUQUAN 7TH RD WUGU DISTRICT NEW TAIPEI Taiwan Telephone: 0931-157874 Telephone: 886-2-2298-1039 ext. 309 Email: [email protected] Email: [email protected] Applicable Equipment: FCC ID: YE3FSC-BT909C ATTN: Director of Certification: We, < DT Research, Inc.> understand and acknowledge the applicants consent and the designated agent’s obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and e-mail of the designated agent listed above. We, < DT Research, Inc.> acknowledge the applicant’s acceptance of its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Applicant U.S. designated agent Name (Printed): JS Hsu Name (Printed): JS Hsu Title: Manager Title: Manager Signature: Signature:

DT Research, Inc. Date: 2023-06-01 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding: FCC ID: YE3FSC-BT909C To whom it may concern: We, the undersigned, hereby authorize SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch to act on our behalf in all manners relating to application for equipment authorization with respect to the FCC ID above, including signing of all documents relating to these matters. Any and all acts carried out by the agent on our behalf shall have the same effect as acts of our own. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). Where our agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by SGS North America, Inc., still resides with DT Research, Inc. This authorization is valid until further written notice from the applicant. Sincerely, Print Name: JS Hsu Title: Manager Signature: On behalf of Company: DT Research, Inc. Telephone: 886-2-2298-1039 ext. 309 E-mail: [email protected]

DT Research, Inc. To: Federal Communications Commission Office of Engineering and Technology Laboratory Division 7435 Oakland Mills Rd. Columbia MD 21046 From: DT Research, Inc. Regarding: Confidentiality Request regarding application for FCC ID: YE3FSC-BT909C LONG TERM CONFIDENTIALITY Pursuant to 47 CFR Section 0.459 and 0.457 of the commission’s rules, the applicant hereby request confidential treatment of the documents listed below, associated with the certification application referenced above. Schematic(s) Block Diagrams Operational Descriptions The documents above contain proprietary information not released to the public. Public disclosure of this information may prove harmful to the business of the applicant. SHORT TERM CONFIDENTIALITY Additionally, the applicant requests the following documents be held confidential until the device is marketed or 180 days from the grant date, whichever is less. If the device is marketed within aforementioned days of the Grant Date, the applicant will notify the TCB per FCC KDB 726920 D01 Confidentiality Request Procedures. External Photos Internal Photos Test Setup Photos User manual(s) Sincerely, Print Name: JS Hsu Title: Manager Signature: On behalf of Company: DT Research, Inc. Telephone: 886-2-2298-1039 ext. 309 E-mail: [email protected]

Cover Letter-Modular Approval FCC ID: YE3FSC-BT909CDate: 2023-06-01 Gentlemen: There’s a Bluetooth Module that would like to have your authorization as a modular approval. The specific product as below, Bluetooth Module with its designed features and specified description, meets special requirements for Full modular approval on FCC KDB996369 by cross-reference list below. Company DT Research, Inc. Model Name Bluetooth Module Model Number FSC-BT909C FCC ID YE3FSC-BT909C Requirement of FCC KDB996369 Comply（Y/N） 1.The modular transmitter must have its own RF shielding. Y The EUT provides the RF shielding. See EUT photo. 2.The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with Part 15 requirements under conditions of excessive data rates or over-modulation. Y The EUT has its buffered modulation. Please see the Schematic Diagram. 3.The modular transmitter must have its own power supply regulation. Y The EUT has its own power supply regulation, please see the Schematic Diagram. 4.The modular transmitter must comply with the antenna and transmission system requirements of Sections 15.203, 15.204(b) and 15.204(c). The antenna must either be permanently attached or employ a “unique” antenna coupler (at all connections between the module and the antenna, including the cable). The “professional installation” provision of Section 15.203 is not applicable to modules but can apply to limited modular approvals under paragraph (b) of this section. Y The EUT meets the FCC antenna requirements; unique antenna connector and photo of antenna are shown in the test report. 5.The modular transmitter must be tested in a stand ‐alone configuration, i.e., the module must not be inside another device during testing. Y The EUT was tested with a test board, Please see test report and setup photo 6.The modular transmitter must be labeled with its own FCC ID number, and, if the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the Y 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 module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: “Contains Transmitter Module FCC ID: YE3FSC-BT909C” or “Contains FCC ID: YE3FSC-BT909C” Any similar wording that expresses the same meaning may be used. The Grantee may either provide such a label, an example of which must be included in the application for equipment authorization, or, must provide adequate instructions along with the module which explain this requirement. In the latter case, a copy of these instructions must be included in the application for equipment authorization. how to label the end product. 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. A copy of these instructions must be included in the application for equipment authorization. Y The EUT is compliant with all applicable FCC rules. Details instructions for maintaining compliance are give in the User Manual. 8. The modular transmitter must comply with any applicable RF exposure requirements. For example, FCC Rules in Sections 2.1091, 2.1093 and specific sections of Part 15, including 15.319(i), 15.407(f), 15.253(f) and 15.255(g), require that Unlicensed PCS, UNII and millimeter wave devices perform routine environmental evaluation for RF Exposure to demonstrate compliance. In ad dition, spread spectrum transmitters operating under Section 15.247 are required to address RF Exposure compliance in accordance with Section 15.247(b)(4). Y The EUT complies with RF exposure requirement. Thank you. Sincerely, Print Name: JS Hsu Title: Manager Signature: On behalf of Company: DT Research, Inc. Telephone: 886-2-2298-1039 ext. 309 E-mail: [email protected]

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A02 Rev.A/0 Page: 1 of 3 Appendix External Photos for SZCR2305001504AT FCC ID:YE3FSC-BT909C SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A02 Rev.A/0 Page: 2 of 3 EUT Constructional Details (EUT Photos) SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A02 Rev.A/0 Page: 3 of 3 - End of the Appendix -

FCC ID and IC Label Location 10mm*20mm FCC ID: YE3FSC-BT909C IC: 7647A-FSCBT909C HVIN: FSC-BT909C Label Locatin: The label location is shown on page 2 of the internal photo.

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 1 of 5 Appendix Internal Photos for SZCR2305001504AT FCC ID:YE3FSC-BT909C SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 2 of 5 EUT Constructional Details (EUT Photos) Label Location SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 3 of 5 PCB Antenna SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 4 of 5 2.4G Terminal Antenna SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 5 of 5 - End of the Appendix -

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230500150404 Page: 1 of 8 Keny Xu EMC Laboratory Manager 1 Cover page RF Exposure Evaluation Report Application No.: SZCR2305001504AT Applicant: DT Research, Inc. Address of Applicant: 3RD FL NO 36 WUQUAN 7TH RD WUGU DISTRICT, NEW TAIPEI, Taiwan Manufacturer: DT Research, Inc. Address of Manufacturer: 2000 Concourse Drive, San Jose, CA 95131, USA Factory: DT Research, Inc. Taiwan Branch Address of Factory: 6F., No.36 Wuquan 7 th Rd., Wugu Dist. New Taipei City 248 Taiwan Equipment Under Test (EUT): EUT Name: Bluetooth Module Model No.: FSC-BT909C Trade Mark: FCC ID: YE3FSC-BT909C Standards: 47 CFR Part 1.1307 47 CFR Part 1.1310 47 CFR Part 2.1091 Date of Receipt: 2023-05-18 Date of Test: 2023-05-20 to 2023-06-01 Date of Issue: 2023-06-03 Test Result : PASS* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230500150404 Page: 2 of 8 2 Version Revision Record Version Chapter Date Modifier Remark 01 2023-06-03 Original Authorized for issue by: Edison Li/Project Engineer Eric Fu/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230500150404 Page: 3 of 8 3 Contents Page 1 COVER PAGE............................................................................................................................................................... 1 2 VERSION ....................................................................................................................................................................... 2 3 CONTENTS ................................................................................................................................................................... 3 4 GENERAL INFORMATION ........................................................................................................................................ 4 4.1 GENERAL DESCRIPTION OF EUT ................................................................................................................................. 4 4.2 TEST LOCATION........................................................................................................................................................... 5 4.3 TEST FACILITY ............................................................................................................................................................ 5 4.4 DEVIATION FROM STANDARDS .................................................................................................................................... 5 4.5 ABNORMALITIES FROM STANDARD CONDITIONS ........................................................................................................ 5 4.6 OTHER INFORMATION REQUESTED BY THE CUSTOMER .............................................................................................. 5 5 RF EXPOSURE EVALUATION ................................................................................................................................. 6 5.1 RF EXPOSURE COMPLIANCE REQUIREMENT ............................................................................................................... 6 5.1.1 Limits ................................................................................................................................................................ 6 5.1.2 Test Procedure ............................................................................................................................................... 6 4.1.3 EUT RF EXPOSURE EVALUATION ............................................................................................................................... 7 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230500150404 Page: 4 of 8 4 General Information 4.1 General Description of EUT Power supply: DC 3.3V powered by Test Motherboard. Bluetooth Version: V4.2 For Bluetooth Classic Operation Frequency: 2402MHz to 2480MHz Modulation Type: GFSK, pi/4DQPSK, 8DPSK Number of Channels: 79 Channel Spacing: 1MHz Spectrum Spread Technology: Frequency Hopping Spread Spectrum(FHSS) Antenna Type: PCB Antenna(Antenna1), 2.4G Terminal Antenna(Antenna2) Antenna Gain: PCB Antenna:2.0dBi 2.4G Terminal Antenna:10dBi Note: MIMO for Antenna PCB Antenna and 2.4G Terminal Antenna. For Bluetooth LE Operation Frequency: 2402MHz to 2480MHz Modulation Type: GFSK Number of Channels: 40 Channel Spacing: 2MHz Data rate: 1Mbps Antenna Type: PCB Antenna(Antenna1), 2.4G Terminal Antenna(Antenna2) Antenna Gain: PCB Antenna:2.0dBi 2.4G Terminal Antenna:10dBi Note: MIMO for Antenna PCB Antenna and 2.4G Terminal Antenna. Remark:The information in this section is provided by the applicant or manufacturer, SGS is not liable to the accuracy, suitability, reliability or/and integrity of the information. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230500150404 Page: 5 of 8 4.2 Test Location All tests were performed at: SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch No. 1 Workshop, M-10, Middle section, Science & Technology Park, Shenzhen, Guangdong, China 518057 Telephone: +86 (0) 755 2601 2053 Fax: +86 (0) 755 2671 0594 No tests were sub-contracted. 4.3 Test Facility The test facility is recognized, certified, or accredited by the following organizations: • A2LA (Certificate No. 3816.01) SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory is accredited by the American Association for Laboratory Accreditation(A2LA). Certificate No. 3816.01. • VCCI The 3m Fully-anechoic chamber for above 1GHz, 10m Semi-anechoic chamber for below 1GHz, Shielded Room for Mains Port Conducted Interference Measurement …

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Shenzhen Kexin wireless Technology Co., Ltd. Address: 301,building HShabeili Hongyongli Industrial Zone,Longxin community,Baolong street, Longgang District,Shenzhen 产品规格书 产品规格书产品规格书 产品规格书 PRODUCT SPECIFICATION Customer: Customer’s part number: Product description: 2.4G Terminal Antenna Uni Link’s part number: Issue Date: 2020-06-10 Note: 术指标（PRODUCT TECHNICAL SPECIFICATION） 电 性能指标Electrical Specifications 频率范围Frequency Range (MHz) 2400-2500 频带宽度Bandwidth (MHz) 100 输入阻抗Input Impendence (Ω) 50 电压驻波比V.S.W.R ≤1.5 增益Gain (dBi) 10 极化形式Polarization Type 垂直Vertical 功率容量Power Capacity (w) 50 机械指标Mechanical Specifications 天线长度Antenna Length (mm) Ø200mm 辐射体Radiator 铜Cuprum 连接器型号Connect Type RP-SMA內孔 工作温度Working Temp(°C) - -- -40~60 Shenzhen Kexin wireless Technology Co., Ltd. Address: 301,building HShabeili Hongyongli Industrial Zone,Longxin community,Baolong street, Longgang District,Shenzhen 外壳颜色Radome Color 黑色Black 重量Weight (g) 40 g 产品简介 该天线是专为无线上网卡设计生产的，天线具有外形美观，结构小巧，安装方 便的优点。 Product Description The antenna is specially designed and produced for wireless internet cards. The antenna has the advantages of beautiful appearance, compact structure and easy installation. 2、产品图片（PRODUCT PICTURE） 3、产品规格图( PRODUCT SPECIFICATION CHART) Shenzhen Kexin wireless Technology Co., Ltd. Address: 301,building HShabeili Hongyongli Industrial Zone,Longxin community,Baolong street, Longgang District,Shenzhen 4、驻波图（STATIONARY WAVE PATTERN）

深圳市飞易通科技有限公司 www.feasycom.com Bluetooth antenna of PCB on-board specification 1，Index Item Content Page Remark 1 Index 1 2 Spec Drawing 2 3 Specification 2 4 Antenna On Test Board 3 5 Return Loss 3 6 Radiation Pattern 3 Document Type: PCB antenna Document Version: V1.0 Release Date: Aug. 23，2017 Shenzhen Feasycom Co., LTD Address: Rm 508, Building A, Fenghuang Zhigu, No.50, Tiezai Road, Xixiang, Baoan District, Shenzhen, 518102, China Telephone: 86-755-27924639 www.feasycom.com 深圳市飞易通科技有限公司 www.feasycom.com 2，Spec Drawing 3，Specification Product Number: PCB antenna Sample Photo: A. Electrical Characteristics Frequency 2400 ~ 2500 MHz S.W.R. <=2.0 Gain 2.0 dBi Efficiency ~ 50% Polarization Linear Impedance 50 Ohm B. Material & Mechanical Characteristics Material of Radiator Gold-plated copper C. Environmental Operation Temperature - 40°C ~ + 85°C Storage Temperature - 40°C ~ + 105°C 深圳市飞易通科技有限公司 www.feasycom.com 4，Antenna On Test Board 16mm 6.1mm 1.4mm FR4 Thickness 0.8mm 5, Return Loss 6，Radiation Pattern Radiation Pattern and Gain were dependent on measurement board design. The specification of coil antenna was measur ed based on the PCB size and installation position as shown in the below figure Test Board. Z Y X Empty Area 16 x 7.5mm 深圳市飞易通科技有限公司 www.feasycom.com Vertical Horizontal Y - Z Plane Average Gain=1.19 dBi Peak Gain = 2.00 dBi Average Gain = 0.75 dBi Peak Gain= -1.33 dBi Average Gain=-8.7 dBi X - Z Plane Average Gain=-2.91d Bi Peak Gain= -3.71 dBi Average Gain= -8.76dBi Peak Gain= -0.29 dBi Average Gain= -4.19dBi X - Y Plane Average Gain=-0.95 dBi Peak Gain= 0.77 dBi Average Gain= -5.86dBi Peak Gain= 1.35 dBi Average Gain= -2.62 dBi 深圳市飞易通科技有限公司 www.feasycom.com Test Result: Frequency VNA E Total. dB(dB) Efficiency 2400MHz 0.693991 41.07% 2410MHz 1.14338 47.24% 2420MHz 0.223052 40.48% 2430MHz -0.13659 33.93% 2440MHz 0.35326 37.82% 2450MHz 1.039894 42.77% 2460MHz 2.00801 50.67% 2470MHz 0.649809 41.93% 2480MHz -0.215933 36.66% 2490MHz -0.476639 34.62% 2500MHz 0.710741 40.22%

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230500150403 Page: 1 of 64 Keny Xu EMC Laboratory Manager TEST REPORT Application No.: SZCR2305001504AT Applicant: DT Research, Inc. Address of Applicant: 3RD FL NO 36 WUQUAN 7TH RD WUGU DISTRICT, NEW TAIPEI, Taiwan Manufacturer: DT Research, Inc. Address of Manufacturer: 2000 Concourse Drive, San Jose, CA 95131, USA Factory: DT Research, Inc. Taiwan Branch Address of Factory: 6F., No.36 Wuquan 7 th Rd., Wugu Dist. New Taipei City 248 Taiwan Equipment Under Test (EUT): EUT Name: Bluetooth Module Model Name: FSC-BT909C Trade Mark: FCC ID: YE3FSC-BT909C Standard(s) : 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2023-05-18 Date of Test: 2023-05-20 to 2023-06-01 Date of Issue: 2023-06-03 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230500150403 Page: 2 of 64 Revision Record Version Chapter Date Modifier Remark 01 2023-06-03 Original Authorized for issue by: Edison Li/Project Engineer Eric Fu/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Bra…

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