MRE3S WiFi Module Spec Manual Version 1.0 MRE3S WiFi Module Spec Manual 1. MRE3S Module Introduction MRE3S is a 2.4G Wi-Fi module using MT7682SN chipset , which integrates a 1T1R 802.11 Wi-Fi radio, a 192MHz ARM Cortex-M4 CPU, some special ports and multiple slow IOs. A PCB printed antenna is used in MRE3S, which max gain is 1.5dBi. Module Picture as below V1.0 MRE3S WiFi Module Spec Manual 2. GPIO Definition GIPO NAME FUN 1 FUN 2 FUN 3 FUN 4 Light GPIO11 RXD2 PWM3 I2S_RX B GPIO1 U1CTS PWM1 I2S_TX I2C_SDA1 G GPIO0 U1RTS PWM0 I2S_RX I2C_SCL1 WW/CCT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 GPIO16 SW_RST GPIO17 ADC PWM5 EN GPIO14 PWM4 3V3 GND GPIO4 GPIO12 TXD2 GPIO13 RXD0 GPIO21 TXD0 GPIO22 I2S_MCLK I2S_TX I2S_WS GPIO2 RXD1 PWM0 I2S_WS GPIO3 TXD1 PWM1 I2S_CK R CW V1.0 MRE3S WiFi Module Spec Manual 3. Size and Package Space requires 3.5mm or above Front perspective view V1.0 MRE3S WiFi Module Spec Manual
[Recommended backplane pad package]
V1.0 MRE3S WiFi Module Spec Manual 4. Electrical parameters Absolute electrical parameters Para VCC VIO Tstg Description MIN MAX Unit Power Supply IO Input
-0.3
-0.3 Storage Temp
-20 3.63 5.5 85 V V Normal working conditions Para Description MAX Unit VCC Power Supply IO Input MIN 2.97
-0.3 Typical Value 3.3 IO Low Level Input
-0.3 VCC*0.25 V IO High Level Input VCC*0.75 VCC IO Low Level Input 0 VCC*0.15 V IO High Level Input VCC*0.85 IO Drive current Working Temp
-20 3.63 3.63 VCC 20 85 V V V V mA VIO VIL VIH VOL VOH IIO TC Typical power consumption Type Mode Transmit power Typical Value TX RX CCK 19dBm OFDM 16.5dBm 248mA 220mA 42mA ESD Static Protection ESD HBM GPIO MIN Other PIN
-2000
(Mannequin) RF PIN
-1000 Other PIN
-500 MAX 2000 1000 500 RFPIN
-250 250 CDM
(Charged device model) Unit V V V V V1.0 MRE3S WiFi Module Spec Manual 5. RF index Basic Parameter Operation Frequency: 802.11b/ g/ n(HT20) 2412 2462MHzn40:24222452MHz WiFi Standard IEEE 802.11b/g/n Transmission rate 11b1,2,5.5 and 11Mbps 11g: 6,9,12,18,24,36,48 and 54 Mbps 11nHT20 MCS0~MCS7, HT40 MCS0~MCS7 Channel CH1~CH11
(HT40:CH3~CH9) Antenna Type:
PCB printed antenna MIN Typical Value MAX Unit TX Indicator Parameter 11b 1Mbps Transmission Power 11g 6Mbps Transmission Power 11n HT20 MCS0 11n HT40 MCS0 Transmission Power Transmission Power EVM EVM EVM EVM Frequency deviation range Receiving sensitivity
-10 Mode MIN Typical Value MAX 11b 1Mbps 11g 54Mbps 11n HT20 MCS7 11n HT40 MCS7
-96
-76
-73.5
-70.5 Maximum receiving level Mode MIN Typical Value MAX 6Mbps OFDM 54Mbps OFDM MCS0 MCS7
-10
-10
-10
-20 10 dBm dB dBm dB dBm dB dBm dB ppm 19.25
-28 23.97
-34 23.25
-33 23.2
-33 Unit dBm dBm dBm dBm Unit dBm dBm dBm dBm V1.0 6. Recommended furnace temperature Refer to IPC/JEDEC standard Peak Temperature : <250CNumber of Times: 2 times 7. OEM/Integrators Installation Manual List of applicable FCC rules This module has been tested and found to comply with part 15.247 requirements for Modular Approval. Summarize the specific operational use conditions This module can be applied in household electrical appliances as well as TV and IP camera. The input voltage to the module should be nominally 2.973.63 VDC ,typical value 3.3VDC and the ambient temperature of the module should not exceed 85. Limited module procedures N/A Trace antenna designs N/A RF exposure considerations This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator&
your body. If the device built into a host as a portable usage, the additional RF exposure evaluation may be required as specified by2.1093. Antennas The module has one PCB antenna and the antenna gain is 1.5dBi. Label and compliance information When the module is installed in the host device, the FCC ID label must be visible through a window on the final device or it must be visible when an access panel, door or cover is easily removed. If not, a second label must be placed on the outside of the final device that contains the following text:
Contains Transmitter Module FCC ID: 2AMUUMWA01 or Contains FCC ID: 2AMUUMWA01. The FCC ID can be used only when all FCC ID compliance requirements are met. Information on test modes and additional testing requirements a) The modular transmitter has been fully tested by the module grantee on the required number of channels, modulation types, and modes, it should not be necessary for the host installer to retest all the available transmitter modes or settings. It is recommended that the host product manufacturer, installing the modular transmitter, perform some investigative measurements to confirm that the resulting composite system does not exceed the spurious emissions limits or band edge limits (e.g., where a different antenna may be causing additional emissions). b) The testing should check for emissions that may occur due to the intermixing of emissions with the other transmitters, digital circuitry, or due to physical properties of the host product (enclosure). This investigation is especially important when integrating multiple modular transmitters where the certification is based on testing each of them in a standalone configuration. It is important to note that host product manufacturers should not assume that because the modular transmitter is certified that they do not have any responsibility for final product compliance. c) If the investigation indicates a compliance concern the host product manufacturer is obligated to mitigate the issue. Host products using a modular transmitter are subject to all the applicable individual technical rules as well as to the general conditions of operation in Sections 15.5, 15.15, and 15.29 to not cause interference. The operator of the host product will be obligated to stop operating the device until the interference have been corrected , WIFI testing using QRCT in FTM mode. Additional testing, Part 15 Subpart B disclaimer The final host / module combination need to be evaluated against the FCC Part 15B criteria for unintentional radiators in order to be properly authorized for operation as a Part15 digital device. The host integrator installing this module into their product must ensure that the final composite product complies with the FCC requirements by a technical assessment or evaluation to the FCC rules, including the transmitter operation and should refer to guidance in KDB 996369. For host products with certified modular transmitter, the frequency range of investigation of the composite system is specified by rule in Sections 15.33(a)(1) through (a)(3), or the range applicable to the digital device, as shown in Section 15.33(b)(1), whichever is the higher frequency range of investigation. When testing the host product, all the transmitters must be operating. The transmitters can be enabled by using publicly available drivers and turned on, so the transmitters are active. In certain conditions it might be appropriate to use a technologyspecific call box (test set) where accessory devices or drivers are not available. When testing for emissions from the unintentional radiator, the transmitter shall be placed in the receive mode or idle mode, if possible. If receive mode only is not possible then, the radio shall be passive (preferred) and/or active scanning. In these cases, this would need to enable activity on the communication BUS (i.e., PCIe, SDIO, USB) to ensure the unintentional radiator circuitry is enabled. Testing laboratories may need to add attenuation or filters depending on the signal strength of any active beacons (if applicable) from the enabled radio(s). See ANSI C63.4, ANSI C63.10 and ANSI C63.26 for further general testing details. The product under test is set into a link/association with a partnering WLAN device, as per the normal intended use of the product. To ease testing, the product under test is set to transmit at a high duty cycle, such as by sending a file or streaming some media content. FCC statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. ISED RSS Warning:
This device complies with Innovation, Science and Economic Development Canada Licenceexempt RSS standard(s). Operation is subject to the following two conditions:
(1) This device may not cause interference, and
(2) This device must accept any interference, including interference that may cause undesired operation of the device. Le prsent appareil est conforme aux CNR d'ISED applicables aux appareils radio exempts de licence. L'exploitation est autorise aux deux conditions suivantes:
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. ISED RF exposure statement:
This equipment complies with ISED radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.This transmitter must not be colocated or operating in conjunction with any other antenna or transmitter. Le rayonnement de la classe b repecte ISED fixaient un environnement non contrls. Installation et mise en oeuvre de ce matriel devrait avec changeur distance minimale entre 20 cm tonon corps.Lanceurs ou ne peuvent pas coexister cette antenne ou capteurs avec dautres. IC Label Instructions:
The outside of final products that contains this module device must display a label referring to the enclosed module. This exterior label can use wording such as:
Contains Transmitter Module IC: 24963MWA01,or Contains IC: 24963MWA01. Any similar wording that expresses the same meaning may be used. Instructions d'tiquetage IC: L'extrieur des produits finis contenant ce module doit afficher une tiquette faisant rfrence au module inclus. Cette tiquette extrieure peut utiliser des libells tels que: "contient le module metteur IC: 24963MWA01ou "contient IC: 24963MWA01, tout libell similaire exprimant le mme sens peut tre utilis.