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Table of Contents
Related Manuals for Hi-Link HLK-7688A
Summary of Contents for Hi-Link HLK-7688A
- Page 1 Shenzhen Hi-Link Electronic Co.,Ltd HLK-7688A user manual １...
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Page 2: Table Of Contents
1. INTRODUCTION................................３ 1.1. BASIC PARAMETER..............................３ 2. DIAGRAM..................................４ 2.1. TYPICAL APPLICATION............................５ 2.2. SPECIFICATIONS..............................６ 3. ELECTRICAL CHARACTERISTICS...........................６ 3.1. INLUT VOLTAGE..............................６ 3.2. RF PERFORMANCE..............................７ 3.2.1. 802.11B 11M................................７ 3.2.2. 802.11G 54M................................７ 3.2.3. 802.11N MCS7(HT20)............................. ８ 3.2.4. 802.11N_MCS7(HT40)............................８ 4. -
Page 3: Introduction
HLK-MT7688A based on MT7688AN is a low cost and low power consumption IOT module developed by Hi-Link.The module supports Linux, OpenWRT operating system and custom development. It could be widely applied to smart devices or cloud services application with its rich interface and powerful processors. -
Page 4: Diagram
2. Diagram Ethernet UART 3.3V 40MHz GPIO USB_HOST IPEX Connector MT7688AN External Antenna SPIS JTAG DDR2(128MB) EINT SPI Flash(32MB) SDXC HLK-7688 structure ４... -
Page 5: Typical Application
2.1. Typical application HLK-7688A typical peripheral interfaces ５... -
Page 6: Specifications
2.2. Specification Item Parameter Model HLK-7688A Chipset MT7688AN Kernel MIPS24KEc Basic frequency 580MHz DDR2 128MB Flash 32MB Temperature Environmental temperature：-20℃~55℃ working：0~85%（noncondensing ） Humidity Storage： 0~85%（noncondensing ） Size 18mm×32.8mm×2.8mm 3. ELECTRONICAL CHARACTERISTICS 3.1. Input voltage Typical Max voltage Item Function MIN Voltage（V）... -
Page 7: Rf Performance
I/O voltage 3.2. RF PERFORMANCE 3.2.1. 802.11b 11M 802.11b Transmit (Conductive) Item Condition Min. Typ. Max. Unit Frequency Range Channel 1 Channel 11 Tx Power Level DQPSK Frequency Tolerance 11MHz→22MHz Spectral Mask ＞22MHz Modulation Accuracy All Data Rate 802.11b Receiver (Conductive) Item Condition Min. -
Page 8: 802.11N Mcs7(Ht20)
Min. Input 54Mbps PER<10% -78.0 -76.0 -74.0 3.2.3. 802.11n MCS7(HT20) 802.11n_HT20 Transmit (Conductive) Item Condition Min. Typ. Max. Unit Frequency Range Channel 1 Channel 11 Tx Power Level OFDM Frequency Tolerance Modulation Accuracy All Data Rate 802.11n_HT20 Receiver (Conductive) Item Condition Min. -
Page 9: Module Pins Definition
Frequency Range Channel 1 Channel 11 Min. Input MCS7 PER<10% -76.5 -74.5 -72.5 4. MODULE PINS DEFINITION 4.1. DEFAULT PINS DEFINITION HLK-7688A default definition 4.2. DEGAULT PINS DEFINITION ９... - Page 10 Name （function 1） Function 2 GPIO Note Function 3 Function 4 3.3VD 3.3VD SPI_CS0 3333333333333333333333 REF_CLK0 3333333333333333333Tim GPIO38 e output PERST_N GPIO36 PCIe device reset WDT_RST_N GPIO37 EPHY_LED4 JTAG_RST_N GPIO39 EPHY_LED3 JTAG_CLK GPIO40 EPHY_LED2 JTAG_TMS GPIO41 EPHY_LED1 JTAG_TDI GPIO42 EPHY_LED0 JTAG_TDO GPIO43 PORST_N...
- Page 11 SPI_MISO GPIO9 SPI_MOSI GPIO8 GPIO0 GPIO11 UART_TXD0 GPIO12 UART_RXD0 GPIO13 WLED_N GPIO44 WiFi LED MDI_RP_P0 GPIO24 MDI_RN_P0 GPIO23 MDI_TP_P0 GPIO22 MDI_TN_P0 GPIO21 MDI_TP_P1 SPIS_CS PWM_CH0 GPIO14 MDI_TN_P1 SPIS_CLK PWM_CH1 GPIO15 MDI_RP_P1 SPIS_MISO UART_TXD2 GPIO16 MDI_RN_P1 SPI_MOSI UART_RXD2 GPIO17 MDI_RP_P2 eMMC_D7 PWM_CH0 GPIO18 MDI_RN_P2...
- Page 12 FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users must 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, this module is to be installed only in mobile or fixed applications.
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