Hi Link Electronic HLK-7688A WIFI Module User Manual 15 HLK 7688A UserMan r2

ShenZhen HaiLingKe Electronic co.,Ltd. WIFI Module 15 HLK 7688A UserMan r2

15_HLK-7688A UserMan,r2

１Shenzhen Hi-Link Electronic Co.,LtdHLK-7688A user manual
２1. INTRODUCTION.......................................................................................................................................................... ３1.1. BASIC PARAMETER.................................................................................................................................................３2. DIAGRAM..................................................................................................................................................................... ４2.1. TYPICAL APPLICATION.......................................................................................................................................... ５2.2. SPECIFICATIONS......................................................................................................................................................６3. ELECTRICAL CHARACTERISTICS...........................................................................................................................６3.1. INLUT VOLTAGE...................................................................................................................................................... ６3.2. RF PERFORMANCE..................................................................................................................................................７3.2.1. 802.11B 11M............................................................................................................................................................ ７3.2.2. 802.11G 54M............................................................................................................................................................ ７3.2.3. 802.11N MCS7(HT20)............................................................................................................................................. ８3.2.4. 802.11N_MCS7(HT40)............................................................................................................................................ ８4. MODULE PINS DEFINITION......................................................................................................................................９4.1. DEFAULT PINS DEFINITION.................................................................................................................................. ９4.2. DEGAULT PINS DEFINITION..................................................................................................................................９
３1.INTRODUCTIONHLK-MT7688A based on MT7688AN is a low cost and low power consumption IOT module developed byHi-Link.The module supports Linux, OpenWRT operating system and custom development. It could be widelyapplied to smart devices or cloud services application with its rich interface and powerful processors.1.1. BASIC PARAMETERSHigh data processing ability，MCU frequency 580MHz150M MbpsSupport 802.11b/g/n20/40 Channel bandwidthSupport 802.11vSupport AP,STA and AP,STA mixedFive 10/100M ETH PORT1 USB2.0 Host interface portInterface SPI/SD-XC/eMMCRich peripheral interfaces，SPI,I2C,I2S,PCM,UART,JTAG,GPIOWidely used in IOTInbuilt powerful PMUSupport 16 Multiple BSSIDSupport multiple security methods WEP64/128, TKIP, AES, WPA, WPA2, WAPISupport QoS，WMM，WMM-PSSupport Linux 2.6.36 SDK，OpenWrt 3.10
４2. DiagramHLK-7688 structureEINTEthernetUARTGPIOPWMUSB_HOSTSPISPISI2CI2SJTAGSDXCMT7688AN3.3V40MHzDDR2(128MB)SPI Flash(32MB)IPEX ConnectorORExternal Antenna
５2.1. Typical applicationHLK-7688A typical peripheral interfaces
６2.2. SpecificationItem ParameterModel HLK-7688AChipset MT7688ANKernel MIPS24KEcBasic frequency 580MHzRAM DDR2 128MBFlash 32MBTemperature Environmental temperature：-20℃~55℃Humidityworking：0~85%（noncondensing）Storage：0~85%（noncondensing）Size 18mm×32.8mm×2.8mm3. ELECTRONICAL CHARACTERISTICS3.1. Input voltageItem Function MIN Voltage（V）Typicalvoltage（V）Max voltage（V）VBAT Power voltage 3 3.3 3.6
７I/O I/O voltage 3 3.3 3.63.2. RF PERFORMANCE3.2.1. 802.11b 11M802.11b Transmit (Conductive)Item Condition Min. Typ. Max. UnitFrequency Range Channel 1 Channel 11Tx Power Level DQPSK 14 20 16 dBmFrequency Tolerance -15 0 15 ppmSpectral Mask11MHz→22MHz 40 dBr＞22MHz 53 dBrModulation Accuracy All Data Rate 15 %802.11b Receiver (Conductive)Item Condition Min. Typ. Max. UnitFrequency Range Channel 1 Channel 11Min. Input 11Mbps PER<8% -91.5 -89.5 -87.5 dBm3.2.2. 802.11g 54M802.11g Transmit (Conductive)Item Condition Min. Typ. Max. UnitFrequency Range Channel 1 Channel 11Tx Power Level OFDM 9 17 11 dBmFrequency Tolerance -15 0 15 ppmModulation Accuracy All Data Rate -31 -28 %802.11g Receiver (Conductive)Item Condition Min. Typ. Max. UnitFrequency Range Channel 1 Channel 11
８Min. Input 54Mbps PER<10% -78.0 -76.0 -74.0 dBm3.2.3. 802.11n MCS7(HT20)802.11n_HT20 Transmit (Conductive)Item Condition Min. Typ. Max. UnitFrequency Range Channel 1 Channel 11Tx Power Level OFDM 9 17 11 dBmFrequency Tolerance -15 0 15 ppmModulation Accuracy All Data Rate -31 -28 dB802.11n_HT20 Receiver (Conductive)Item Condition Min. Typ. Max. UnitFrequency Range Channel 1 Channel 11Min. Input MCS7 PER<10% -76.5 -74.5 -72.5 dBm3.2.4. 802.11n_MCS7(HT40)802.11n_HT40 Transmit (Conductive)Frequency Range Channel 1 Channel 11Tx Power Level OFDM 5.0 17.0 8.0 dBmFrequency Tolerance -15 0 15 ppmModulation Accuracy All Data Rate -31 -28 dB802.11n_HT40 Receiver (Conductive)Item Condition Min. Typ. Max. UnitItem Condition Min. Typ. Max. Unit
９Frequency Range Channel 1 Channel 11Min. Input MCS7 PER<10% -76.5 -74.5 -72.5 dBm4. MODULE PINS DEFINITION4.1. DEFAULT PINS DEFINITIONHLK-7688A default definition4.2. DEGAULT PINS DEFINITION
１０PINName（function1）Function 2Function 3Function 4GPIONote1GND23.3VD33.3VD4GND5SPI_CS06REF_CLK0GPIO3833333333333333333333333333333333333333333Time output7PERST_NGPIO36PCIe device reset8WDT_RST_NGPIO379EPHY_LED4JTAG_RST_NGPIO3910EPHY_LED3JTAG_CLKGPIO4011EPHY_LED2JTAG_TMSGPIO4112EPHY_LED1JTAG_TDIGPIO4213EPHY_LED0JTAG_TDOGPIO4314PORST_NReset15UART_TXD1PWM_CH0GPIO4516UART_RXD1PWM_CH1GPIO4617I2S_SDIPCMDRXGPIO018I2S_SDOPCMDTXGPIO119I2S_WSPCMCLKGPIO220I2S_CLKPCMFSGPIO321GND22ANT23GND24I2C_SCLKGPIO425I2C_SDGPIO526SPI_CS1GPIO627SPI_CLKGPIO7
１１28SPI_MISOGPIO929SPI_MOSIGPIO830GPIO0GPIO1131UART_TXD0GPIO1232UART_RXD0GPIO1333WLED_NGPIO44WiFi LED34MDI_RP_P0GPIO2435MDI_RN_P0GPIO2336MDI_TP_P0GPIO2237MDI_TN_P0GPIO2138MDI_TP_P1SPIS_CSPWM_CH0GPIO1439MDI_TN_P1SPIS_CLKPWM_CH1GPIO1540MDI_RP_P1SPIS_MISOUART_TXD2GPIO1641MDI_RN_P1SPI_MOSIUART_RXD2GPIO1742MDI_RP_P2eMMC_D7PWM_CH0GPIO1843MDI_RN_P2eMMC_D6PWM_CH1GPIO1944MDI_TP_P2UART_TXD2eMMC_D5PWM_CH2GPIO2045MDI_TN_P2UART_RXD2eMMC_D4PWM_CH3GPIO2146MDI_TP_P3SD_WPeMMC_WPGPIO2247MDI_TN_P3SD_CDeMMC_CDGPIO2348MDI_RP_P3SD_D1eMMC_D1GPIO2449MDI_RN_P3SD_D0eMMC_D0GPIO2550MDI_RP_P4SD_CLKeMMC_CLKGPIO2651MDI_RN_P4SD_CMDeMMC_CMDGPIO2852MDI_TP_P4SD_D3eMMC_D3GPIO2953MDI_TN_P4SD_D2eMMC_D2GPIO2754USB_DP55USB_DM56GNDNote ：1，All pins are Default function 1.
１２FCC Radiation Exposure Statement:This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End usersmust follow the specific operating instructions for satisfying RF exposure compliance.Note 1: This module certified that complies with RF exposure requirement under mobile or fixed condition, thismodule is to be installed only in mobile or fixed applications.A mobile device is defined as a transmitting device designed to be used in other than fixed locations and togenerally be used in such a way that a separation distance of at least 20 centimeters is normally maintainedbetween the transmitter's radiating structure(s) and the body of the user or nearby persons. Transmitting devicesdesigned to be used by consumers or workers that can be easily re-located, such as wireless devices associatedwith a personal computer, are considered to be mobile devices if they meet the 20 centimeter separationrequirement.A fixed device is defined as a device is physically secured at one location and is not able to be easily moved to another location.Note 2: Any modifications made to the module will void the Grant of Certification, this module is limited to OEM installation only and must not be sold to end-users, end-user has no manual instructions to remove or install thedevice, only software or operating procedure shall be placed in the end-user operating manual of final products.Note 3: Additional testing and certification may be necessary when multiple modules are used.Note 4: To ensure compliance with all non-transmitter functions the host manufacturer is responsible for ensuringcompliance with the module(s) installed and fully operational. For example, if a host was previously authorized asan unintentional radiator under the Declaration of Conformity procedure without a transmitter certified moduleand a module is added, the host manufacturer is responsible for ensuring that the after the module is installed andoperational the host continues to be compliant with the Part 15B unintentional radiator requirements. Since thismay depend on the details of how the module is integrated with the host, Shenzhen HaiLingKe Electronic co., Ltd.shall provide guidance to the host manufacturer for compliance with the Part 15B requirements.Note 5: FCC ID label on the final system must be labeled with “Contains FCC ID: 2AD56HLK-7688A” or“Contains transmitter module FCC ID: 2AD56HLK-7688A”.FCC WarningThis 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.NOTE: Any changes or modifications to this unit not expressly approved by the party responsible for compliancecould void the user's authority to operate the equipment.The OEM integrator is still responsible for the FCC compliance requirement of the end product, which integrates thismodule.

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