P53-EMC3280Embedded Wi-Fi/BT Module

Copyright of Shanghai MXCHIP Information Technology Co., Ltd. Abstract ⚫ Input Voltage：2.7V~3.3V ⚫ Processor：Dual Core CPU with ARM v8-M architecture. ⚫ Performance Core KM4：Cortex-M33，Main frequency up to 200 MHz. ⚫ Energy Efficiency Core KM0：Cortex-M23，Main frequency up to 200 MHz. ⚫ Deep Sleep、Deep Standby and Sleep mode. ⚫ SWD/JTAG Simulation Debug Interface. ⚫ Memory ⚫ 512K bytes SRAM for KM4 core ⚫ 64K bytes SRAM for KM0 core ⚫ XIP flash memory from 2M to 8M bytes ⚫ Selection of Large Capacity PSRAM Storage ⚫ Wi-Fi ⚫ IEEE 802.11 b/g/n 1T1R 2.4GHz Single frequency ⚫ Processing Wi-Fi messages using independent Microcontrollers. ⚫ Support low power TX/RX mode in short distance applications. ⚫ Support narrow-band mode: 10MHz bandwidth. ⚫ Support Antenna diversity. ⚫ Support IEEE Power Save Model ⚫ BT 5.0 Low Energy ⚫ Comply with Low Power Bluetooth 5.0 Standard. ⚫ Support high power mode (10dbm). ⚫ Wi-Fi and BLE time division multiplexing and share the same PA and antenna. ⚫ Support Bluetooth Master-Slave Mode and BLE mesh. ⚫ Safety ⚫ ARM Trust Zone-M Technology. ⚫ AES/SHA Hardware Accelerator, Random Number Generator ⚫ Security Boot Safe Start ⚫ Anti-reading mechanism: JTAG interface protection, flash encryption technology. ⚫ Peripherals ⚫ 16 x GPIO (6 x Wakeup Pins, 3 x ADC channel) ⚫ 1 x SPI、1 x I 2 C、8 x PWM、5 x Timer ⚫ 2 x UART，Supporting Hardware Flow Control. ⚫ 1 x USI，can be set as UART、SPI or I 2 C ⚫ Infrared Transceiver ⚫ DMIC Digital Microphone Interface ⚫ SGPIO Single Line Communication ⚫ 4x2/3x3 Matrix Keyboard ⚫ USB Host/Device ⚫ Operating Temperature：-20°C to +85°C ⚫ Antenna：On-Board PCB Antenna，or IPEX Connector ⚫ Applications and Functions ⚫ Support AliOS Operating System and MXOS Development Platform ⚫ Provide access to major cloud platforms and Bluetooth Mesh networking protocol stack ⚫ Bluetooth/Wi-Fi Gateway Device for Internet of Things Applications Datasheet EMC328x Wi-Fi/BLE IoT Module Built-in ARM Cortex V8 dual-core wireless processor, large capacity Flash memory and SRAM. 2.4 Hz Wi-Fi Internet Access and BLE 5.0 SIG Mesh Networking Version：2.0 Date：2019-08-08 Number：DS0145EN Copyright of Shanghai MXCHIP Information Technology Co., Ltd. ⚫ Interfaces and Dimensions ⚫ Maintain pin compatibility with similar packaging modules ⚫ EMC3280:18mm x 33mm, stamp hole or pin ✓ Support external antenna or board antenna ⚫ EMC3285：18mm x 19.2mm，Stamp hole ✓ Small size, supporting only external antenna ⚫ Note: Mass production module includes shielding cover Copyright of Shanghai MXCHIP Information Technology Co., Ltd. Order Code For example, EMC 3 28 0 -P Z J 5 Product Series EMC=IoT Wi-Fi/BLE Combo Module Product Type 3= Welding Wireless Module Typical Target Applications and Functions 28=IOT Gateway Application, 8 Series Master Control Shape size, enhancement function 0 = 18mm x 33mm，2 x 6pin 2.0 Spacing double-row stamp holes + 9 pin 2.0 spacing stamp holes or pins 5 = 18mm x 19.2mm, 2 x 14pin 1.2 Spacing double-row stamp holes RF Interface P=2.4GHz Single Frequency，On-Board PCB Antenna E=2.4GHz Single-frequency, external antenna IPEX connector PSRAM Compacity(Optional) Z=No PSRAM J=4M bytes PSRAM Flash Compacity J=4M bytes Flash memory K=8M bytes Flash memory Temperature Range 5=Industrial Temperature Range， -20°C~85°C Optional model Order Code 说明 EMC3280-PZJ5 18mm x 33mm Stamp holes or Pinhole interface，On-board PCB Antenna，4M bytes flash，-20°C~85°C EMC3280-EZJ5 18mm x 33mm Stamp holes or Pinhole interface， External Antenna pedestal ，4M bytes flash，-20°C~85°C EMC3285- EZJ5 18mm x 19.2mm Stamp holes ，External Antenna pedestal，4M bytes flash，-20°C~85°C EMC328x Series Wireless Module Data Manual Copyright of Shanghai MXCHIP Information Technology Co., Ltd. Parts Version Update Record Date Version Update Content 2019-08-08 1.0 Initial Document 2019-10-28 1.1 Update Wi-Fi Frequency parameter in abstract 2019-10-31 2.0 Update some package and photo information Copyright Notice Without permission, it is prohibited to use or copy all or any part of this manual, especially for trademarks, model naming, part numbers and drawings. Order Code Description MXKIT-Base Development board motherboard, suitable for all EMC328x modules MXKIT-Core-C3280 Suitable for EMC3285 development board core board, including EMC3280-PZJ5 module. Matching with MXKIT-Base. MXKIT-Core-C3285 Suitable for EMC3285 development board core board, including EMC3285-EZJ5 module. Matching with MXKIT-Base. FX-C3280 EMC3280 manufactures fixtures, including companion board: MXKIT-Base, MXKIT- Core-3280 FX-C3285 EMC3285 manufactures fixtures with accompanying board: MXKIT-Base, MXKIT- Core-3285 EMC328x Series Wireless Module Data Manual Copyright of Shanghai MXCHIP Information Technology Co., Ltd. 1 Catalog Abstract ............................................................................................................................................................................... 1 Introduction ............................................................................................................................................................... 1 Peripheral List .................................................................................................................................................................................. 2 Characteristic ............................................................................................................................................................. 3 System and storage ........................................................................................................................................................................ 3 Wireless Communication ............................................................................................................................................................... 4 Safety .......................................................................................................................…

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Rev 11/20/07 Shanghai MXCHIP Information Technology Co.,Ltd. Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: P53-EMC3280 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Block Diagram, Schematics, Operational Description, Block Diagram Operation Description schematic diagram The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Client’s name / title ： Xu Wei/ Product department manager Contact information / address: Shanghai MXCHIP Information Technology Co.,Ltd. /9th Floor,No.5,Lane2145 JinshaJiang Road,Putuo District,ShangHai,China (200333)

Declaration on model difference We the undersigned hereby confirm that any of our production units bearing the following model numbers are identical in circuitry and electrical, mechanical and physical construction; the only difference is EMC3280-P model with PCB antenna; EMC3280-E model with IPEX antenna connector FCC ID: P53-EMC3280 Production name Trade name Model no. Embedded Wi-Fi/BT Module EMC3280-P, EMC3280-E Confirmed by Shanghai MXCHIP Information Technology Co., Ltd. Client’s name / title ： Xu Wei/ Product department manager Contact information / address: Shanghai MXCHIP Information Technology Co.,Ltd. /9th Floor,No.5,Lane2145 JinshaJiang Road,Putuo District,ShangHai,China (200333) Date: 2021-03-06

MODULAR APPROVAL LETTER FCC ID: P53-EMC3280 Modular Approval Requirement Yes No (i) The radio elements of the modular transmitter must have their own shielding. The physical crystal and tuning capacitors may be located external to the shielded radio elements. YES The modular transmitter have its own RF shielding (ii) 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. YES The modular accord with Part 15 requirements (iii) The modular transmitter must have its own power supply regulation. YES The modular It has its own power supply regulation (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 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 § 15.203 is not applicable to modules but can apply to limited modular approvals under paragraph (b) of this section. YES The modular accord with the antenna requirements of Section 15.203 and 15.204(b)(c) (v) The modular transmitter must be tested in a stand-alone configuration YES (vi) The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number. YES The modular have one permanently affixed label (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 YES The modular transmitter accord with any specific rule or operating requirements authorization. (viii) The modular transmitter must comply with any applicable RF exposure requirements in its final configuration. YES The modular transmitter accord RF exposure requirements The letter must be on the applicant’s letterhead and signed by the grantee code contact. Signature: Date: ___2021-03-06 Client’s name / title ： Xu Wei/ Product department manager Contact information / address: Shanghai MXCHIP Information Technology Co.,Ltd. /9th Floor,No.5,Lane2145 JinshaJiang Road,Putuo District,ShangHai,China (200333)

Shanghai MXCHIP Information Technology Co.,Ltd. Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: 2021-03-06 SUBJECT: FCC Application for FCC ID: P53-EMC3280 To Whom It May Concern: We, the undersigned, hereby authorize Lisa Wang at EMTEK (SHENZHEN) CO., LTD. on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by EMTEK (SHENZHEN) CO., LTD. on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Client’s name / title ： Xu Wei/ Product department manager Contact information / address: Shanghai MXCHIP Information Technology Co.,Ltd. /9th Floor,No.5,Lane2145 JinshaJiang Road,Putuo District,ShangHai,China (200333)

EUT EXTERNAL PHOTOGRAPHS EUT View 1 EUT View 2 EUT View 3 EUT View 4 EUT View 5 ----------------The end----------------

Label and label location

EUT INTERNAL PHOTOGRAPHS Solder Board-Component View 1 Solder Board-Component View 2 Antenna 1 Antenna 2 ----------------The end----------------

FCC ID : P53-EMC3280 RF EXPOSURE EVALUATION According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) Radiation as specified in §1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density(mW/cm 2 ) Average Time (A) Limits for Occupational/Control Exposures 300-1500 -- -- F/300 6 1500- 100000 -- -- 5 6 (B) Limits for General Population/Uncontrol Exposures 300-1500 -- -- F/1500 6 1500- 100000 -- -- 1 30 11.1 Friis transmission formula: Pd= (Pout*G)\ (4*pi*R 2 ) Where Pd= Power density in mW/cm 2 Pout=output power to antenna in mW G= Numeric gain of the antenna relative to isotropic antenna Pi=3.1416 R= distance between observation point and center of the radiator in cm Pd the limit of MPE, 1mW/cm 2 ,If we know the maximum gain of the nd total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. RF Exposure Information: The radiated output power of this device meets the limits of FCC/IC radio frequency exposure limits.This device should be operated with a minimum separation distance of 20cm (8 inches) between the equipment and a person's body. 11.2 Measurement Result WIFI2.4G and Bluetooth cannot transmit at the same time BLE Antenna gain: 2.0 dBi modulation Channel Freq. (MHz) Measured power (dBm) Tune-up power (dBm) Max tune- up power (dBm) Antenna Gain Numeric Evaluation result (mW/cm2 ) Power density Limits (mW/cm2 ) GFSK(1M) 2402 7.253 6 to 8 8 1.58 0.0020 1 2440 6.982 5 to 7 7 1.58 0.0016 1 2480 7.530 6 to 8 8 1.58 0.0020 1 GFSK(2M) 2402 6.875 5 to 7 7 1.58 0.0016 1 2440 6.759 5 to 7 7 1.58 0.0016 1 2480 7.544 6 to 8 8 1.58 0.0020 1 Wifi 2.4G Antenna gain: 2.0 dBi modulation Channel Freq. (MHz) Measured power (dBm) Tune-up power (dBm) Max tune- up power (dBm) Antenna Gain Numeric Evaluation result (mW/cm2 ) Power density Limits (mW/cm2 ) 802.11b 2412 14.30 13 to 15 15 1.58 0.0099 1 2437 14.57 13 to 15 15 1.58 0.0099 1 2462 15.59 14 to 16 16 1.58 0.0125 1 802.11g 2412 14.80 13 to 15 15 1.58 0.0099 1 2437 14.75 13 to 15 15 1.58 0.0099 1 2462 15.93 14 to 16 16 1.58 0.0125 1 802.11n (HT20) 2412 15.01 14 to 16 16 1.58 0.0125 1 2437 15.13 14 to 16 16 1.58 0.0125 1 2462 16.23 15 to 17 17 1.58 0.0158 1 802.11n (HT40) 2422 14.38 13 to 15 15 1.58 0.0099 1 2437 14.35 13 to 15 15 1.58 0.0099 1 2452 13.89 12 to 14 14 1.58 0.0079 1

Report No.ES210118059W01 Page 1 of 61 Ver.1.0 TEST REPORT Product Name ： Embedded Wi-Fi/BT Module Model Number ： EMC3280-P, EMC3280-E FCC ID ： P53-EMC3280 Prepared for : Shanghai MXCHIP Information Technology Co., Ltd. Address : 9th Floor,No.5,Lane2145 JinshaJiang Road,Putuo District,ShangHai,China (200333) Prepared by : EMTEK (SHENZHEN) CO., LTD. Address : Building 69, Majialong Industry Zone, Nanshan District, Shenzhen, Guangdong, China Tel: (0755) 26954280 Fax: (0755) 26954282 Report Number : ES210118059W01 Date(s) of Tests : January 20, 2021 to March 12, 2021 Date of issue : March 15, 2021 $二维码$ Report No.ES210118059W01 Page 2 of 61 Ver.1.0 Table of Contents 1 TEST RESULT CERTIFICATION ............................................................................................................... 3 2 EUT TECHNICAL DESCRIPTION ............................................................................................................. 4 3 SUMMARY OF TEST RESULT .................................................................................................................... 5 4 TEST METHODOLOGY ............................................................................................................................... 6 4.1 GENERAL DESCRIPTION OF APPLIED STANDARDS ....................................................................... 6 4.2 MEASUREMENT EQUIPMENT USED .................................................................................................. 6 4.3 DESCRIPTION OF TEST MODES ........................................................................................................... 7 4.4 TEST SOFTWARE .................................................................................................................................... 7 5 FACILITIES AND ACCREDITATIONS ...................................................................................................... 8 5.1 FACILITIES............................................................................................................................................... 8 5.2 LABORATORY ACCREDITATIONS AND LISTINGS ........................................................................... 8 6 TEST SYSTEM UNCERTAINTY ................................................................................................................. 9 7 SETUP OF EQUIPMENT UNDER TEST .................................................................................................. 10 7.1 RADIO FREQUENCY TEST SETUP 1 ................................................................................................... 10 7.2 RADIO FREQUENCY TEST SETUP 2 ................................................................................................... 10 7.3 CONDUCTED EMISSION TEST SETUP .............................................................................................. 12 7.4 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM ............................................................... 13 7.5 SUPPORT EQUIPMENT......................................................................................................................... 13 8 TEST REQUIREMENTS ............................................................................................................................. 14 8.1 DTS 6DB BANDWIDTH ........................................................................................................................ 14 8.2 MAXIMUM PEAK CONDUCTED OUTPUT POWER ......................................................................... 19 8.3 MAXIMUM POWER SPECTRAL DENSITY ........................................................................................ 25 8.4 UNWANTED EMISSIONS IN NON-RESTRICTED FREQUENCY BANDS ....................................... 30 8.5 RADIATED SPURIOUS EMISSION ...................................................................................................... 35 8.6 CONDUCTED EMISSIONS TEST ......................................................................................................... 57 8.7 ANTENNA APPLICATION .................................................................................................................... 60 Report No.ES210118059W01 Page 3 of 61 Ver.1.0 1 TEST RESULT CERTIFICATION Applicant : Shanghai MXCHIP Information Technology Co., Ltd. Address : 9th Floor,No.5,Lane2145 JinshaJiang Road,Putuo District,ShangHai,China (200333) Manufacturer : Shanghai MXCHIP Information Technology Co., Ltd. Address : 9F, Building B, Lane 2145, Jinshajiang Road, Putuo District, Shanghai, China Trade Mark : EUT : Embedded Wi-Fi/BT Module Model Number : EMC3280-P, EMC3280-E Measurement Procedure Used: APPLICABLE STANDARDS STANDARD TEST RESULT FCC 47 CFR Part 2 , Subpart J FCC 47 CFR Part 15, Subpart C PASS The above equipment was tested by EMTEK(SHENZHEN) CO., LTD. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10 (2013) and the energy emitted by the sample EUT tested as described in this report is in compliance with the requirements of FCC Rules Part 2 and Part 15.247 The test results of this report relate only to the tested sample identified in this report Date of Test : January 20, 2021 to March 12, 2021 Prepared by : Sewen Guo /Editor Reviewer : Sevin Li /Supervisor Approve & Authorized Signer : Lisa Wang/Manager Report No.ES210118059W01 Page 4 of 61 Ver.1.0 2 EUT TECHNICAL DESCRIPTION Product: Embedded Wi-Fi/BT Module Model Number: EMC3280-P, EMC3280-E (Two models are identical in circuitry and electrical, mechanical and physical construction; the only difference is EMC3280-P model with PCB antenna; EMC3280-E model with IPEX antenna connector) Sample number: 2# Device Type: Bluetooth V5.0 Data Rate : 1Mbps for GFSK modulation 2Mbps for GFSK modulation Modulation: Bluetooth DTS: GFSK Frequency Range: 2402-2480MHz Number of Channels: 40 Channels for Bluetooth DTS; Transmi…

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Report No.ES210118059W02 Page 1 of 68 Ver.1.0 TEST REPORT Product Name ： Embedded Wi-Fi/BT Module Model Number ： EMC3280-P, EMC3280-E FCC ID ： P53-EMC3280 Prepared for : Shanghai MXCHIP Information Technology Co., Ltd. Address : 9th Floor,No.5,Lane2145 JinshaJiang Road,Putuo District,ShangHai,China (200333) Prepared by : EMTEK (SHENZHEN) CO., LTD. Address : Building 69, Majialong Industry Zone, Nanshan District, Shenzhen, Guangdong, China Tel: (0755) 26954280 Fax: (0755) 26954282 Report Number : ES210118059W02 Date(s) of Tests : January 20, 2021 to March 12, 2021 Date of issue : March 15, 2021 $二维码$ Report No.ES210118059W02 Page 2 of 68 Ver.1.0 TABLE OF CONTENTS 1 TEST RESULT CERTIFICATION ...................................................................................................................... 3 2 EUT TECHNICAL DESCRIPTION .................................................................................................................... 4 3 SUMMARY OF TEST RESULT ........................................................................................................................... 5 4 TEST METHODOLOGY ...................................................................................................................................... 6 4.1 GENERAL DESCRIPTION OF APPLIED STANDARDS ............................................................................ 6 4.2 MEASUREMENT EQUIPMENT USED ....................................................................................................... 6 4.3 DESCRIPTION OF TEST MODES ................................................................................................................ 7 5 FACILITIES AND ACCREDITATIONS ............................................................................................................. 8 5.1 FACILITIES.................................................................................................................................................... 8 5.2 LABORATORY ACCREDITATIONS AND LISTINGS ................................................................................ 8 6 TEST SYSTEM UNCERTAINTY ........................................................................................................................ 9 7 SETUP OF EQUIPMENT UNDER TEST ......................................................................................................... 10 7.1 RADIO FREQUENCY TEST SETUP 1 ........................................................................................................ 10 7.2 RADIO FREQUENCY TEST SETUP 2 ........................................................................................................ 10 7.3 CONDUCTED EMISSION TEST SETUP ................................................................................................... 12 7.4 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM .................................................................... 13 7.5 SUPPORT EQUIPMENT.............................................................................................................................. 13 8 TEST REQUIREMENTS .................................................................................................................................... 14 8.1 DTS (6DB) BANDWIDTH ........................................................................................................................... 14 8.2 MAXIMUM CONDUCTED OUTPUT POWER.......................................................................................... 21 8.3 MAXIMUM POWER SPECTRAL DENSITY ............................................................................................. 30 8.4 UNWANTED EMISSIONS IN NON-RESTRICTED FREQUENCY BANDS ............................................ 37 8.5 RADIATED SPURIOUS EMISSION ........................................................................................................... 42 8.6 CONDUCTED EMISSIONS TEST .............................................................................................................. 64 8.7 ANTENNA APPLICATION ......................................................................................................................... 67 Report No.ES210118059W02 Page 3 of 68 Ver.1.0 1 TEST RESULT CERTIFICATION Applicant : Shanghai MXCHIP Information Technology Co., Ltd. Address : 9th Floor,No.5,Lane2145 JinshaJiang Road,Putuo District,ShangHai,China (200333) Manufacturer : Shanghai MXCHIP Information Technology Co., Ltd. Address : 9F, Building B, Lane 2145, Jinshajiang Road, Putuo District, Shanghai, China Trade Mark : EUT : Embedded Wi-Fi/BT Module Model Number : EMC3280-P, EMC3280-E Measurement Procedure Used: APPLICABLE STANDARDS STANDARD TEST RESULT FCC 47 CFR Part 2 , Subpart J FCC 47 CFR Part 15 , Subpart C PASS The above equipment was tested by EMTEK (SHENZHEN) CO., LTD. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10 (2013) and the energy emitted by the sample EUT tested as described in this report is in compliance with the requirements of FCC Rules Part 2 and Part 15.247 The test results of this report relate only to the tested sample identified in this report. Date of Test : January 20, 2021 to March 12, 2021 Prepared by : Sewen Guo /Editor Reviewer : Sevin Li /Supervisor Approve & Authorized Signer : Lisa Wang/Manager Report No.ES210118059W02 Page 4 of 68 Ver.1.0 2 EUT TECHNICAL DESCRIPTION Note: for more details, please refer to the User’s manual of the EUT. Characteristics Description Product Embedded Wi-Fi/BT Module Model Number EMC3280-P, EMC3280-E (Two models are identical in circuitry and electrical, mechanical and physical construction; the only difference is EMC3280-P model with PCB antenna; EMC3280-E model with IPEX antenna connector) Sample Number 2# IEEE 802.11 WLAN Mode Supported 802.11b 802.11g 802.11n(20MHz channel bandwidth) 802.11n(40MHz channel bandwidth) Modula…

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TEST SETUP PHOTOGRAPHS 1.1. Photos of Conducted Emission Measurement 1.2. Photos of Radiation Emission Measurement Spurious Emission Test Setup (Below 1GHz) Spurious Emission Test Setup (Above 1GHz) ----------------The end----------------