1. Product overview
1.1 Introduction to the module
The MT7628/7688 WIFI module produced by Yunlianxin is a low-cost and low-power IoT module based on MT7628/7688AN. The module supports Linux and OpenWRT operating systems and custom development, and is an all-in-one 802.11 b/g/n WIFI solution, which can be widely applied to smart devices and cloud service applications, including wired to wireless, 4G to WIFI, wireless cameras, hard APs, routers, wireless speakers, wireless storage, etc.
1.2 Main application fields
l Internet of Things applications
l WIFI smart home
l WIFI security monitoring
l Industrial controls
l Consumer electronics
l Wired to wireless
l 4G TO WIFI SHARING
l Wireless camera
l Hard AP
l router
l Wireless speakers
l Wireless storage
l WIFI power bank
lPortable mobile WIFI hotspot
1.3 Module features
This module adopts MT7628/7688AN scheme, which is small in size and stable in performance. The main features are as follows:
（1）Ultra-small size, length and width are only 42mm×32mm.
（2）Stamp hole interface for easy installation.
（3）Built-in ceramic antenna and I-PEX interface.
（4）3.3V single power supply.
（5）Wired + wireless router solution
（6）Supports 802.11 b/g/n protocol up to 300/150Mbps.
（7）Wired supports 1WAN or 1LAN, 10M/100M self-adaptation.
（8）Moderate RF power consumption.
（9）Onboard 64-256MB DDR2 memory, 8-16MB FLash.
（10）480Mbps high-speed USB interface.
（11）3-way UART (UART0 is recommended for system debugging).
（12）TCP to serial port.
（13）SD-XC, eMMC, PCM, IIS digital audio interface (192K/24bits), IIC communication interface, PWM, SPI master/slave.
（14）Rich GPIOs.
1.4 Basic parameters of the module
Classify | Parameter | |
Wireless parameters | Wireless rate | 150Mbps或300Mbps |
Frequency range | 2.4GHz-2.4835GHz | |
Wireless standards | IEEE 802.11b/g/n | |
Wireless options | I-PEX connector OR on-board ceramic antenna | |
Hardware parameters | Operating voltage | 2.97V-3.63V |
Operating temperature | 0-55℃ | |
Storage temperature | -20-70℃ | |
Data interface | UART、IIS、IIC、SPI、PWM、GPIO | |
size | 42mmX32mm | |
Board-level software | Custom development | Provide SDK for secondary development for customers |
Wireless type | AP/STA/AP+STA | |
Type of encryption | WEP64/WEP128 | |
Security mechanisms | WEP/WAP-PSK/WPA2-PSK/AES | |
After powering on, the blue light will be on when the voltage supply is normal, and the red light will indicate that the WIFI is successfully started, that is, the system will start normally.
pins | Network name | Signal type | illustrate |
1 | GND | Power | |
2 | UART_RX1 | I | UART1 receives |
3 | *UART_TX1 | O | UART1 |
4 | WLED_N | O | WIFI status indication |
5 | GPIO43 | I/O | By default, the WAN port status is displayed |
6 | GPIO42 | I/O | The default is the LINK0 status indication |
7 | GPIO41 | I/O | The default is LINK1 status indication |
8 | GPIO40 | I/O | The default is LINK2 status indication |
9 | GPIO39 | The default is LINK3 status indication | |
10 | GND | Power | Power Ground |
11 | CPURST_N | I/O | System reset |
12 | WPS_RST_BUTTON | I/O | Vocchdogg reset |
13 | REF_CLKO | I/O | Clock output |
14 | *PERST_N | 5G reset | |
15 | GND | Power | Power Ground |
16 | It can be used as a general-purpose GPIO | ||
17 | PCIE_CKN0 | PCIE | It can be used as a general-purpose GPIO |
18 | PCIE_RXN0 | PCIE | It can be used as a general-purpose GPIO |
19 | PCIE_RXP0 | PCIE | It can be used as a general-purpose GPIO |
20 | PCIE_TXP0 | PCIE | It can be used as a general-purpose GPIO |
21 | PCIE_TXN0 | PCIE | It can be used as a general-purpose GPIO |
22 | GND | Power Ground | |
23 | DC3V3 | Power | Power supply (ripple should be small, current should be large) DC-DC chips are used |
24 | DC3V3 | Power | Power supply (ripple should be small, current should be large) DC-DC chips are used |
25 | GND | Power | 电源地 |
26 | USB_DM | I/O | USB2.0 D- |
27 | USB_DP | I/O | USB2.0 D+ |
28 | GND | Power | 电源地 |
29 | TXON4/SD_D2 | I/O | LINK3口TX-或SD data2 |
30 | TXOP4/SD_D3 | I/O | LINK3口TX+或SD data3 |
31 | RXIN4/SD_CMD | I/O | LINK3口RX-或SD命令 |
32 | RXIP4/SD_CLK | O | LINK3口RX+或SD时钟 |
33 | RXIN3/SD_D0 | I/O | LINK2口RX-或SD data0 |
34 | RXIP3/SD_D1 | I/O | LINK2口RX+或SD data1 |
35 | TXON3/SD_CD | I | LINK2口TX-或SD检测 |
36 | TXOP3SD_WP | I | LINK2口TX+或SD写保护 |
37 | I/O | ||
38 | TXOP2/SD_D5/GPIO20 | I/O | LINK1口TX+或SD data5 |
39 | RXIN2/SD_D6/GPIO19 | I/O | LINK1口RX-或SD data6 |
40 | RXIP2/SD_D7/GPIO18 | LINK1口RX+或SD data7 | |
41 | GND | Power | 电源地 |
42 | RXIN1/UART_RXD2 | I/O | LINK0口RX-或UART2接收 |
43 | RXIP1/UART_TXD2 | I/O | |
44 | TX0N1/PWM_CH1 | I/O | LINK0口TX-/PWM |
45 | TXOP1/PWM_CH0 | I/O | LINK0口TX+/PWM |
46 | RXIP0 | I/O | WAN口RX+ |
47 | RXIN0 | I/O | WAN口RX- |
48 | TXOP0 | I/O | WAN口TX+ |
49 | TXON0 | I/O | WAN口TX- |
50 | GND | Power | 电源地 |
51 | UART_RX0 | I | UART0 接收 |
52 | *UART_TX0 | O | UART0 发送 |
53 | GPIO0 | I/O | 通用输入输出口，其实按手 册应该是GPIO11 |
54 | *SPI_MOSI | O | SPI 主出从入 |
55 | *SPI_CLK | O | SPI 时钟 |
56 | SPI_CS0 | O | SPI 片选0(默认选择) |
57 | SPI_MISO | I | SPI 主入从出 |
58 | *SPI_CS1 | I | SPI 片选1 |
59 | I2C_SD | I/O | |
60 | I2C_SCLK | O | I2C时钟 |
61 | I2S_CLK | O | I2S 位时钟 |
62 | I2S_WS | O | I2S 左右声道对齐 |
63 | *I2S_SDO | O | I2S 数据输出 |
64 | I2S_SDI | I | I2S 数据输入 |
带*号前缀红色信号用于系统启动配置，外部不可驱动，不要上拉下拉，会导致启动不成功。
SPI部分引脚顺序以表格为准，图片标记有错误！
更多复用引脚详细情况，可查阅Datasheet。
参数 | 条件 | 最小值 | 典型值 | 最大值 | 单位 |
存放温度范围 | -45 | 125 | |||
最大焊接温度 | IPC/JEDEC J-STD-020 | ℃ | |||
工作电压 | 2.97 | 3.3 | 3.62 | V | |
任意I/O电压 | 0 | 3.3 | V | ||
静电释放量（人体模型） | TAMB=25℃ | 2 | KV | ||
静电释放量(充电设备模型) | TAMB=25℃ | 2 | KV |
引脚间距为1.27mm（50mil），客户设计PCB时，可联系我司提供封装，可提供AD、PADS、Orcad、Allergo的原理图及PCB封装。
当客户使用内置天线时，需要注意：
（1）将天线远离金属，至少与周围较高元器件保持10mm 间距。
（2）天线部分不能被金属外壳遮挡，塑料外壳至少保持10mm。
当客户使用外置天线接口，根据IEEE 802.11 b/g/n 标准的要求，外置天线的参数要求如下表所示：
项目 | 参数 |
频率范围 | 2.4-2.5GHz |
阻抗 | 50Ω |
VSWR | 2（Max） |
回波损耗 | -10DB（Max） |
连接类型 | -10DB（Max） |
评估开发套件，供客户快速熟悉产品和进行深度应用开发。
我司可提供的MT7628/MT7688AN WIF模块配置及价格如下：
模块类型 | 配置 | 数量 | 价格 |
MT7628AN | 128MB 内存+16MB Flash | 1000片-1999片 | |
2000片-4999片 | |||
5000片及以上 | |||
256MB 内存+16MBFlash | 1000片-1999片 | ||
2000片-4999片 | |||
5000片及以上 | |||
MT7688AN |
64MB 内存+8MB Flash | ||
2000片-4999片 | |||
5000片及以上 | |||
128MB内存+16MB Flash | 1000片-1999片 | ||
2000片-4999片 | |||
5000片及以上 |
硬件参数
型号 | X5 mini |
CPU | 高通ARM-A53四核CPU 1.8Ghz |
内存DDR4 | 1GB |
Nand flash | 128MB |
EMMC | 4GB |
5G模块数量 | 2PCS |
4G模块数量 | 2pcs |
5G-LTE型号速度 | 最高下行速度可达2.5 Gbps，最高上行速度可达900 Mbps |
4G-LTE型号速度 | 支持CAT4下载150Mbps /上传50Mbps（理论速率） |
蜂窝网络模式 | 支持NSA 和SA 模式/TDD-LTE，FDD-LTE，DC-HSPA + / HSPA + / HSPA / UMTS，TD-SCDMA |
节点频段 | 取决于客户的区域 |
SIM卡热插拔 | 支持 |
LAN速率 | 1000Mb / s *3 |
WAN速率 | 1000Mb / s * 1 |
WiFi频率 | 2.4GHz，5.8GHz（全频段） |
WiFi-AX速率 | 2.4G 600Mbps+ 5.8G 1200Mbps(1800Mbps) |
WiFi技术标准 | IEEE802.11 a/b/g/n/ac/ax |
无线终端数 | 256个 |
LCD屏 | 显示电量，网络速度，服务器地址，等 |
接口 | Wi-Fi，1x WAN，2x LAN，4xSIM |
WiFi | |
WIFI范围 | 30-100米 |
功率 | |
适配器 | DC/12V 2A （） |
快速充电 | 支持 |
功耗 | 15W |
电池容量 | 15000mah |
工作时长 | 6-9h环境决定 |
体积（长宽高） | 224*162*40mm |
4G/5G天线 | 12根 |
Wifi天线 | 4根 |
重量 | 2.5kg(不带天线) |
