MT7628,MT7688,MT7621,MT7620Custom development of modules
MT7628,MT7688,MT7621,MT7620Custom development of modules

MT7628,MT7688,MT7621,MT7620Custom development of modules

2024-05-22 17:20:44   239

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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


2. Hardware introduction

IMG_0436

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.

2.1 Pin Definition

4268015737_178058079

pins

Network name

Signal type

illustrate

1

GND

Power

Power Ground

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

I/O

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

I/O

5G reset

15

GND

Power

Power Ground

16

PCIE_CKP0

PCIE

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

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

TXON2/SD_D4/GPIO21

I/O

LINK1口TX-或SD data4

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

I/O

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

LINK0口RX+或UART2发送

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

I2C数据线

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。

2.2 电气特性

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

2.3 封装尺寸

图片关键词

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。

2.4 天线

本模块支持板载陶瓷天线和外置天线。

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)

2.5 开发套件

评估开发套件,供客户快速熟悉产品和进行深度应用开发。

IMG_0382

3、购买说明(如有具体需求联系客服)

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

1000片-1999片


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 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)




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