AI-Link WF-M38G-UTH1 User manual

Sichuan AI-Link Technology Co., Ltd.
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AI-Link
WF-M38G-UTH1
WiFi Module
Features：
Reserving System
IEEE Std. 802.11b
IEEE Std. 802.11g
IEEE Std. 802.11n
Bluetooth 2.1+EDR,4.2 LE,5.0
Chip Solution
MT7638GU
Band
2.4G
Model Overview：
Model Standard Rate Channe
l POWER
WF-M38G-UTH1
IEEE 802.11b/g/n 300Mbps 2.4G 3.3V
Bluetooth 5.0 3Mbps 2.4G
Sichuan AI-Link Technology Co.,Ltd
Add: Anzhou, Industrial park, Mianyang, Sichuan, China
Fax : [phone]
http://www.changhong.com

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1. Introduction
WF-M38G-UTH1 is based on MT7638GU,complied with IEEE 802.11b/g/n dual-band WIFI subsystem
and a Bluetooth subsystem..
1.1 RF module Overview
The general HW architecture for the module is shown in Figure 1. This WLAN Module design is based
on MTK MT7638GU. It is a highly integrated single-chip MIMO(Multiple In Multiple Out) Wireless LAN
(WLAN) USB2.0 network interface controllercomplying with the 802.11n specification. It combines a
MAC, a 2T2R capable baseband,and RF in a single chip. The MT7638GU provides a complete solution
for a highthroughput performance wireless client.The Bluetooth subsystem contains the Bluetooth
radio,baseband,link controller.It also uses the 32-bit RISC MCU for the Bluetooth protocols.
Figure 1 WF-M38G-UTH1 Block Diagram
1.2 Specification reference
This specification is based on additional references listed below.
_ IEEE Std. 802.11b
_ IEEE Std. 802.11g
_ IEEE Std. 802.11n
1.3 System Functions
Table1: General Specification as below:
Standard IEEE 802.11 b/g/n Bluetooth 2.1+EDR,4.2 LE,5.0
Interface USB 2.0
ANT 2T2R
Modulation
802.11b:DBPSK,DQPSK,CCK for DSSS
802.11g:BPSK,QPSK,16QAM,64QAM for OFDM
802.11n:BPSK,QPSK,16QAM,64QAM for OFDM
BT:GFSK/DQPSK/8DPSK
BLE: GFSK

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Operating
Frequency 2.400 ~ 2.4835 GHz,
TX Power
WiFi:
11b: 17 +/- 1.5dBm (11Mbps)
11g: 15 +/- 1.5dBm (54Mbps)
11n: 18 +/- 1.5dBm (MCS7 HT20)
11n: 18 +/- 1.5dBm (MCS7 HT40)
BT:
DH5,Class 1(5dBm Typical)
Frequency
offset ≤+-15PPM
EVM
11b @ 11Mbps: (Max.) : 35%, (Typical) : 6%
11g @ 54Mbps: (Max.) : -25dB , (Typical) : -30dB
11n @ MCS7 (2.4G): (Max.) : -28dB, (Typical) : -32dB
11n @ MCS7 (2.4G): (Max.) : -28dB, (Typical) : -32dB
RX Sensitivity
WiFi:
11b @ 11Mbps: (Max.) : -85dBm , (Typical) : -86dBm (PER<8%)
11g @ 54Mbps: (Max.) : -65dBm , (Typical) : -73dBm (PER<10%)
11n @ MCS7 (2.4GHT20): (Max.) : -64dBm , (Typical) : -71dBm
(PER<10%)
11n @ MCS7 (2.4GHT40): (Max.) : -61dBm , (Typical) : -68dBm
(PER<10%)
BT:
GFSK: typical -93dBm
π/4 DQPSK: typical -93dBm
8DPSK: typical -87dBm
-97 dBm(BLE)
Channel 2.4GHz：CH1-CH11
Operation
Voltage 3.3V+/-0.1%
Power
consumption
WIFI
BT
ANT 2.4G gain 2dBi
Operation -10 to +70℃℃

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Temperature
Storage
Temperature -40 to +125℃℃
Hardware
version JUI7.820.0575
Software
version customer_package
2. Mechanical Specification
Typical Dimension (W x L x T): 30.0mmx 45.0mm x 4.15mm
PCB Thickness: 0.8mm
no Defintion NOTE
1 GND GND
2 GND GND
3 GND GND
4 BT_WAKE BT_WAKE
5 WIFI_WAKE WIFI_WAKE
6 RESET RESET
7 GND GND
8 DP USB D+
9 DW USB D-
10 GND GND
11 3.3V Power supply
12 3.3V Power supply
13 GND GND
14 GND GND
15 GND GND

Sichuan AI-Link Technology Co., Ltd.
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3. Product Picture
Topview Bottomview
Noet: No marked size tolerance: ±0.3mm
7、Statement：
A、CE Statement
Herby, Sichuan AI-Link Technology Co., Ltd. declares that this WiFi Module，WF-M68A-UWF1 is in compliance with
the essential requirements and other relevant provisions of Directive 2014/53/EU.
In accordance with Article 10(2) and Article 10(10), this product allowed to be used in all EU member states.
Use t WiFi Module in the environment with the temperature between -10℃and 70℃
Operation Frequency:
For BT/BLE: 2402MHz~2480MHz
For 2.4G WIFI:
2412MHz~2472MHz (802.11b/802.11g/802.11n(HT20))
2422MHz~2462MHz (802.11n(HT40))
Max output power: WIFI: 0.0767W BT: 0.0048W BLE: 0.0039W
Manufacturer: Sichuan AI-Link Technology Co., Ltd.
Address: Anzhou, Industrial park, Mianyang, Sichuan, China
Tel: [phone]
Fax: [phone]
E-mail: [email protected]
B、FCC Statement
FCC standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247
For BT/BLE: FPC antenna with Gain 2dBi For 2.4G WIFI: Integral Antenna with Gain 2dBi
Changes or modifications not expressly approved by the party responsible for compliance could void the user's
authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:

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-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-- Consult the dealer or an experienced radio/TV technician for help
This 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.
If power exceeds the limit and the distance（Over 20cm distance in actual use between the device and user）is
compliant with the requirement
FCC RF Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment
should be installed and operated with a minimum distance of 20cm between the radiator and any part of your body.
Notice to OEM integrator
If the FCC ID is not visible when the module is installed inside another device, then the outside of the device into
which the module is installed must also display a label referring to the enclosed module.
The end product shall haves the words “Contains Transmitter Module FCC ID: 2AOKI-WFM38GUTH1”.
The device must be professionally installed
The intended use is generally not for the general public. It is generally for industry/commercial use.
The connector is within the transmitter enclosure and can only be accessed by disassembly of the transmitter that is
not normally required. The user has no access to the connector.
Installation must be controlled. Installation requires special training
Any company of the host device which installs this modular with unlimited modular approval should perform the test of
radiated & conducted emission and spurious emission, etc. according to FCC part 15C: 15.247 and 15.209
& 15.207, 15B Class B requirement, only if the tests result comply with FCC part 15C: 15.247 and 15.209 &
15.207, 15B Class B requirement, then the host can be sole legally
When the module is installed inside another device, the user manual of the hose contain below warning statement:
1) This device may not cause harmful interference.
2) This device must accept any interference received, including interference that may cause undesired operation.
C、IC Statement
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic
Development
Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions:
(1) This device may not cause interference.
(2) This device must accept any interference, including interference that may cause undesired operation of the device.
The term “IC: “ before the certification/registration number only signifies that the Industry Canada technical
specifications were met.
This product meets the applicable Industry Canada technical specifications.
Cet appareil contient des émetteurs / récepteurs exemptés de licence conformes aux RSS (RSS) d'Innovation,
Sciences et Développement économique Canada. L'exploitation est autorisée aux deux conditions suivantes : (1)
l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique
subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
L'émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d'Innovation,
Sciences et Développement économique Canada applicables aux appareils radio exempts de licence.
L'exploitation est autorisée aux deux conditions suivantes :
1)L'appareil ne doit pas produire de brouillage;
2)L'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre
le fonctionnement.
Please notice that if the ISED certification number is not visible when the module is installed inside another device,
then the outside of the device into which the module is installed must also display a label referring to the enclosed
module. This exterior label can use wording such as the following: “Contains IC: 23460-WFM38GUTH1” any similar
wording that expresses the same meaning may be used.
l'appareil hôte doit porter une étiquette donnant le numéro de certification du module d'Industrie Canada, précédé des
mots «Contient un module d'émission », du mot « IC: 23460-WFM38GUTH1 » ou d'une formulation similaire
exprimant le même sens, comme suit
The device meets the exemption from the routine evaluation limits in section 2.5 of RSS 102 and compliance with

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RSS-102 RF exposure, users can obtain Canadian information on RF exposure and compliance.
Le dispositif rencontre l'exemption des limites courantes d'évaluation dans la section 2.5 de RSS 102 etla conformité
à l'exposition de RSS-102 rf, utilisateurs peut obtenir l'information canadienne surl'exposition et la conformité de rf.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This
equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator and your
body.
Cet émetteur ne doit pas être Co-placé ou ne fonctionnant en même temps qu'aucune autre antenne ouémetteur. Cet
équipement devrait être installé et actionné avec une distance minimum de 20 centimètres entre le radiateur et votre
corps.