AI-Link WF-M620-RSD2 User manual

AI-Link
WF-M620-RSD2
Features：
Supported WLAN Standards
IEEE Std. 802.11a
IEEE Std. 802.11b
IEEE Std. 802.11g
IEEE Std. 802.11n
Chip Solution
MTK MT3620AN
Size
24.0mm*27.0mm*2.5mm
Installation
Data
Rate(max)
Band
Antenna
Interface
Note
SMD
72.2Mbps
2.4 GHz/5 GHz
IPEX
DC 3.3V
Power
Supply
Sichuan AI-Link Technology Co.,Ltd
Add: Anzhou,Industrial park,Mianyang,Sichuan
Web: http://www.ailinkiot.com
Tel: [phone]

WF-M620-RSD2
IEEE 802.11a/b/g/n 1T1R IoT Module
Sichuan AI-Link Technology Co., Ltd. page 2 of 16
Feedback of customer’s Confirmation
We accept the specification after Confirmed
Customer name
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Confirmation Date
Please feed back this paper and first paper after your signature by the address,thanks!
ADD：Anzhou,Industrial park,Mianyang,Sichuan
Factory：Sichuan AI-Link Technology Co.,Ltd.
Approved
Checked
Designed
Product
WiFi Module
Feng Yi
Ding
Shuangpeng
Feng Jie
Model
WF-M620-RSD2
Date
2020-5-30

WF-M620-RSD2
IEEE 802.11a/b/g/n 1T1R IoT Module
Sichuan AI-Link Technology Co., Ltd. page 3 of 16
Record of Modification
No
Date of
modification
Main content of
modification
Reason of
modification
Serial number of
modification
Confirm
Draft
v1.0
20200530
Feng Jie

WF-M620-RSD2
IEEE 802.11a/b/g/n 1T1R IoT Module
Sichuan AI-Link Technology Co., Ltd. page 4 of 16
1. Brief Description
The WF-M620-RSD2 IoT module is based on the MediaTek MT3620AN,a highly integrated single chip,tricore WIFI
MCU designed to meet the requirements of modern robust internet-connected devices.It leverages the Microsoft Azure
Sphere security architecture to provide an unprecedented level of security to connected device manufacturers.For the
lifetime of the device the Azure Sphere system provides device authentication and attestation,supports remote
over-the-air software updates to maintain security in the face of evolving attacks,and automates error logging and
reporting.
1.1 Block Diagram
1.2 WIFI Feature
Single band 2.4/5 GHz ISM
Supported IEEE 802.11a/b/g/n
1.3 Hardware Feature
No.
Feature
Description
1
Main Chip
MT3620AN
2
RAM Capacity
approximately 5MB(including 256KB in each I/O subsystem
and 4MB in the A7 application subsystem)
3
NOR-flash Capacity
16MB on-die and no external flash(The amount of flash that
will be accessible to customer software is TBD)
4
Form Factor
74 pins(stamp hole)
5
Size
24 x 27 x 2.5mm±0.2mm
6
Interface
UART×5：ISU0,ISU1,ISU2,ISU3,ISU4
I2S×1：I2S0
PWM×6：PWM0~PWM5
ADC×4：ADC0~3
GPIO：36 GPIO pins with multi-functions
7
Operation Voltage
3.3V+/-0.3
8
Current Consumption
TX Avg 151mA @11b 11M 17dBm
9
Antenna Type
IPEX connector for external antenna
10
Operating Temperature
-40°C to +85°C
11
Storage Temperature
-45°C to +135°C

WF-M620-RSD2
IEEE 802.11a/b/g/n 1T1R IoT Module
Sichuan AI-Link Technology Co., Ltd. page 5 of 16
2. Mechanical Specification(units:mm)
2.1 Mechanical Outline
Top View Side View Bottom View
2.2 Pin Definition
Figure 2.2 Pin assignment

WF-M620-RSD2
IEEE 802.11a/b/g/n 1T1R IoT Module
Sichuan AI-Link Technology Co., Ltd. page 6 of 16
Pin#
Pin name
Type
Description
1
GND
P
Ground
2
GND
P
Ground
3
3V3
PI
DC 3.3V Power Supply
4
3V3
PI
DC 3.3V Power Supply
5
GPIO0/PWM0
DIO
Interrupt-capable GPIO multiplexed with PWM output
6
GPIO1/PWM1
DIO
Interrupt-capable GPIO multiplexed with PWM output
7
GPIO2/PWM2
DIO
Interrupt-capable GPIO multiplexed with PWM output
8
GPIO3/PWM3
DIO
Interrupt-capable GPIO multiplexed with PWM output
9
GPIO4/PWM4
DIO
Interrupt-capable GPIO multiplexed with PWM output
10
GPIO5/PWM5
DIO
Interrupt-capable GPIO multiplexed with PWM output
11
GPIO26/SCLK0/TXD0
DIO
GPIO multiplexed with ISU0[1] functions(SPI CLK/UART TX)
12
GPIO27 /MOSI0/RTS0/SCL0
DIO
GPIO multiplexed with ISU0 functions(SPI MOSI/UART RTS/I2C CLK)
13
GPIO28/MISO0/RXD0/SDA0
DIO
GPIO multiplexed with ISU0 functions(SPI MISO/UART RX/I2C DATA)
14
GPIO29/CSA0/CTS0
DIO
GPIO multiplexed with ISU0 functions(SPI CSA/UART CTS)
15
GPIO31/SCLK1/TXD1
DIO
GPIO multiplexed with ISU1 functions(SPI CLK/UART TX)
16
GPIO32/MOSI1/RTS1/SCL1
DIO
GPIO multiplexed with ISU1 functions(SPI MOSI/UART RTS/I2C CLK)
17
GPIO33/MISO1/RXD1/SDA1
DIO
GPIO multiplexed with ISU1 functions(SPI MISO/UART RX/I2C DATA)
18
GPIO34/CSA1/CTS1
DIO
GPIO multiplexed with ISU1 functions(SPI CSA/UART CTS)
19
GND
P
Ground
20
GND
P
Ground
21
GPIO36/SCLK2/TXD2
DIO
GPIO multiplexed with ISU2 functions(SPI CLK/UART TX)
22
GPIO37/MOSI2/RTS2/SCL2
DIO
GPIO multiplexed with ISU2 functions(SPI MOSI/UART RTS/I2C CLK)
23
GPIO38/MISO2/RXD2/SDA2
DIO
GPIO multiplexed with ISU2 functions(SPI MISO/UART RX/I2C DATA)
24
GPIO39/CSA2/CTS2
DIO
GPIO multiplexed with ISU2 functions(SPI CSA/UART CTS)
25
GPIO41/ADC0
ADIO
GPIO multiplexed with ADC input
26
GPIO42/ADC1
ADIO
GPIO multiplexed with ADC input
27
GPIO43/ADC2
ADIO
GPIO multiplexed with ADC input
28
GPIO44/ADC3
ADIO
GPIO multiplexed with ADC input
29
VREF_ADC
AI
Reference voltage input for ADC[2]
30
EXT_PMU_EN
DO
External power supply enable output
31
WAKEUP
DI
External wakeup from RTC mode (deepest sleep mode)
32
AVDD_3V3_RTC
PI
Power rail for real-time clock[3]
33
VOUT_2V5
PO
Output from internal 2.5V LDO
34
PMU_EN
DI
Internal PMU override. If driven low, MT3620 is turned off and in a very low power
state, equivalent to RTC mode power consumption. Only the PMU quiescent
current will be drawn. When released, the PMU will start up.
35
DEBUG_CTS
DI
Azure Sphere OS debug CTS
Debug UART is for Microsoft use only.
36
DEBUG_RXD
DI
Azure Sphere OS debug RXD
37
DEBUG_RTS
DO
Azure Sphere OS debug RTS/
Strapping pin when MT3620 boot up
38
DEBUG_TXD
DO
Azure Sphere OS debug TXD
39
GND
P
Ground
40
GND
P
Ground
41
3V3
PI
DC 3.3V Power Supply
42
3V3
PI
DC 3.3V Power Supply
43
SWD_DIO
DIO
ARM SWD data
SWD is used for programming and
debugging the 2X Cortex-M4 on
MT3620.A single SWD channel is
shared between two Cortex-M4.
44
SWD_CLK
DI
ARM SWD clock
45
SWO
DO
ARM SWO debug output

WF-M620-RSD2
IEEE 802.11a/b/g/n 1T1R IoT Module
Sichuan AI-Link Technology Co., Ltd. page 7 of 16
Note：
1.ISU is a serial communication block which can be configured as I2C master. I2C slave, SPI master, SPI slave, or
UART; I2C runs at up to 1MHz, SPI at up to 40MHz, and UARTs at up to 3Mbps.
2.The MT3620AN ADC VREF maximum is 2.5V.Should not input >2.5V when using the ADC because the ADC will not
read any value higher than 2.5V.If the ADC pin is not configured for ADC operation,then 3.3V input is ok.
3.WF-M620-RSD2 RTC functionality is enabled, the AVDD_3V3_RTC must be always powered, or the MT3620 will
hang up during the system boot procedure.
4.The power supply for all GPIO pins is 3.3V.
46
GPIO56/TX0
DIO
GPIO multiplexed with I2S 0
47
GPIO57/MCLK0
DIO
GPIO multiplexed with I2S 0
48
GPIO58/FS0
DIO
GPIO multiplexed with I2S 0
49
GPIO59/RX0
DIO
GPIO multiplexed with I2S 0
50
GPIO60/BCLK0
DIO
GPIO multiplexed with I2S 0
51
GPIO66/SCLK3/TXD3
DIO
GPIO multiplexed with ISU3 functions(SPI CLK/UART TX)
52
GPIO67/MOSI3/RTS3/SCL3
DIO
GPIO multiplexed with ISU3 functions(SPI MOSI/UART RTS/I2C CLK)
53
GPIO68/MISO3/RXD3/SDA3
DIO
GPIO multiplexed with ISU3 functions(SPI MISO/UART RX/I2C DATA)
54
GPIO69/CSA3/CTS3
DIO
GPIO multiplexed with ISU3 functions(SPI CSA/UART CTS)
55
GPIO70/CSB3
DIO
GPIO multiplexed with ISU3 functions(SPI CSB)
56
GPIO72/MOSI4/RTS4/SCL4
DIO
GPIO multiplexed with ISU4 functions(SPI MOSI/UART RTS/I2C CLK)
57
GPIO73/MISO4/RXD4/SDA4
DIO
GPIO multiplexed with ISU4 functions(SPI MISO/UART RX/I2C DATA)
58
GND
P
Ground
59
GND
P
Ground
60
GND
P
Ground
61
GND
P
Ground
62
SYSRST_N
DI
System reset,active low.
63
SERVICE_TXD
DO
Azure Sphere Service UART TXD
Service UART is the main interface
for PC to communicate with the
Azure Sphere OS.Core A7 app
debugging, sideload, manufacturing
test, getting device ID operation all
use the Service UART port.
64
SERVICE_RTS
DO
Azure Sphere Service UART RTS
65
SERVICE_RXD
DI
Azure Sphere Service UART RXD
66
SERVICE_CTS
DI
Azure Sphere Service UART CTS
67
RECOVERY_RXD
DI
Azure Sphere flash re-imaging Recovery UART RXD
Recovery UART is
for upgrading the
Azure Sphere OS
without connection
to the Internet.
68
RECOVERY_TXD
DO
Azure Sphere flash re-imaging Recovery UART TXD
69
RECOVERY_RTS
DO
Azure Sphere flash re-imaging Recovery UART RTS
70
RECOVERY_CTS
DI
Azure Sphere flash re-imaging Recovery UART CTS
71
IO0_GPIO85/IO0_RXD
DI
Dedicated GPIO multiplexed with UART for I/O CM4F 0
72
IO0_GPIO86/IO0_TXD
DO
Dedicated GPIO multiplexed with UART for I/O CM4F 0
73
GND
P
Ground
74
GND
P
Ground

WF-M620-RSD2
IEEE 802.11a/b/g/n 1T1R IoT Module
Sichuan AI-Link Technology Co., Ltd. page 8 of 16
2.3 Product Pictures
TOP VIEW BOTTOM VIEW
3. RF Characteristics:
3-1 IEEE 802.11b Section:
Items
Contents
Specification
IEEE802.11b
Mode
CCK
Channel
CH1 to CH13
Data rate
1, 2, 5.5, 11Mbps
Min.
Typ.
Max.
Unit
Remark
TX Characteristics
1. Power Levels(Calibrated)
1) for each data rate
15
17
19
dBm
2. Spectrum Mask @ target power
1) fc +/-11MHz to +/-22MHz
-
-
-30
dBr
2) fc > +/-22MHz
-
-
-50
dBr
3 Constellation Error(EVM)@ target power
1) 1Mbps
-
-23
-10
dB
2) 2Mbps
-
-
-10
dB
3) 5.5Mbps
-
-
-10
dB
4) 11Mbps
-
-23
-10
dB
4. Frequency Error
-10
+2
10
ppm
RX Characteristics
Min.
Typ.
Max.
Unit
5 Minimum Input Level Sensitivity(each chain)
1) 1Mbps (FER ≦8%)
-
-98
-95
dBm
2) 2Mbps (FER ≦8%)
-
-95
-93
dBm
3) 5.5Mbps (FER ≦8%)
-
-93
-91
dBm
4) 11Mbps (FER ≦8%)
-
-90
-88
dBm
6 Maximum Input Level (FER ≦8%)
-10
-
-
dBm

WF-M620-RSD2
IEEE 802.11a/b/g/n 1T1R IoT Module
Sichuan AI-Link Technology Co., Ltd. page 9 of 16
3-2 IEEE 802.11g Section:
Items
Contents
Specification
IEEE802.11g
Mode
OFDM
Channel
CH1 to CH13
Data rate
6, 9, 12, 18, 24, 36, 48, 54Mbps
Min.
Typ.
Max.
Unit
Remark
TX Characteristics
1. Power Levels
1) For Each data rate
13
15
17
dBm
2. Spectrum Mask @ target power
1) at fc +/-11MHz
-
-
-20
dBr
2) at fc +/-20MHz
-
-
-28
dBr
3) at fc > +/-30MHz
-
-
-40
dBr
3 Constellation Error(EVM)@ target power
1) 6Mbps
-
-31
-5
dB
2) 9Mbps
-
-
-8
dB
3) 12Mbps
-
-
-10
dB
4) 18Mbps
-
-
-13
dB
5) 24Mbps
-
-
-16
dB
6) 36Mbps
-
-
-19
dB
7) 48Mbps
-
-
-22
dB
8) 54Mbps
-
-35
-25
dB
4 Frequency Error
-10
+2
10
ppm
RX Characteristics
Min.
Typ.
Max.
Unit
5 Minimum Input Level Sensitivity(each chain)
1) 6Mbps (PER ≦10%)
-
-95
-92
dBm
2) 9Mbps (PER ≦10%)
-
-92
-90
dBm
3) 12Mbps (PER ≦10%)
-
-90
-88
dBm
4) 18Mbps (PER ≦10%)
-
-88
-86
dBm
5) 24Mbps (PER ≦10%)
-
-85
-83
dBm
6) 36Mbps (PER ≦10%)
-
-83
-81
dBm
7) 48Mbps (PER ≦10%)
-
-78
-76
dBm
8) 54Mbps (PER ≦10%)
-
-76
-74
dBm
6 Maximum Input Level (PER ≦10%)
-20
-
-
dBm

WF-M620-RSD2
IEEE 802.11a/b/g/n 1T1R IoT Module
Sichuan AI-Link Technology Co., Ltd. page 10 of 16
3-3 IEEE 802.11n HT20 Section:
Items
Contents
Specification
IEEE802.11n HT20 @ 2.4GHz
Mode
OFDM
Channel
CH1 to CH13
Data rate (MCS index)
MCS0/1/2/3/4/5/6/7
TX Characteristics
Min.
Typ.
Max.
Unit
Remark
2. Power Levels
1) For Each antenna port
12
14
16
dBm
3. Spectrum Mask @target power
1) at fc +/-11MHz
-
-
-20
dBr
2) at fc +/-20MHz
-
-
-28
dBr
3) at fc > +/-30MHz
-
-
-45
dBr
4. Constellation Error(EVM)@ target power
1) MCS0
-
-33
-5
dB
2) MCS1
-
-
-10
dB
3) MCS2
-
-
-13
dB
4) MCS3
-
-
-16
dB
5) MCS4
-
-
-19
dB
6) MCS5
-
-
-22
dB
7) MCS6
-
-
-25
dB
8) MCS7
-
-35
-28
dB
5. Frequency Error
-10
+2
10
ppm
RX Characteristics
Min.
Typ.
Max.
Unit
6. Minimum Input Level Sensitivity(each chain)
1) MCS0 (PER ≦10%)
-
-94
-90
dBm
2) MCS1 (PER ≦10%)
-
-90
-88
dBm
3) MCS2 (PER ≦10%)
-
-87
-85
dBm
4) MCS3 (PER ≦10%)
-
-85
-83
dBm
5) MCS4 (PER ≦10%)
-
-82
-80
dBm
6) MCS5 (PER ≦10%)
-
-77
-75
dBm
7) MCS6 (PER ≦10%)
-
-75
-73
dBm
8) MCS7 (PER ≦10%)
-
-75
-73
dBm
7. Maximum Input Level (PER ≦10%)
-20
-
-
dBm