Sichuan AI Link Technology WFM638GUWP1 User Manual

Model

Standard

Rate

Band

Power

WF-M638G-UWP1

IEEE 802.11b/g/n

300Mbps

2.4G

5V

Bluetooth2.1+EDR/4.2/5.0

3Mbps

2.4G

Features：

WF-M638G-UWP1

IEEE 802.11 /b/g/n, Wireless Module& Bluetooth Module

Integrated Bluetooth 2.1+EDR/4.2/5.0

 Reserving System

IEEE Std. 802.11b
IEEE Std. 802.11g
IEEE Std. 802.11n
Bluetooth 2.1+EDR/4.2/5.0

 Chip Solution

Mediatek MT7638GUN

 Size

33.0mm x70.0mm x 6.0mm

Model Overview：

Sichuan AI-Link Technology Co.,Ltd.
Add: Anzhou,Industrial park,Mianyang,Sichuan

Phone: [phone]
Web :http://www.changhong.com

WF-M638G-UWP1

IEEE 802.11b/g/n 2T2R USB WIFI Module&BT2.1+EDR/4.2/5.0

1. Introduction

WF-M638G-UWP1 module design is based on Mediatek MT7638GUN solution, The MT7638GUN is a
highly integrated single chip which has built in a 2x2 dual-band wireless LAN radio and Bluetooth radio.
It includes Bluetooth EDR and LE radio which complies with Bluetooth v2.1+EDR, v4.2, and v5.0.
The Module is a highly integrated MAC/BBP and 2.4GHz PA/LNA single chip which supports a 300Mbps
PHY rate. The Module is designed to support standard-based features in the areas of security, quality of
service, and international regulations, giving end users the greatest performance anytime and in any
circumstance. This documentation describes the engineering requirements specification.

1.1 RF module Overview

The general HW architecture for the module is shown in Figure 1. This WLAN Module design is based
on Mediatek MT7638GUN. It is a highly integrated single-chip MIMO(Multiple In Multiple Out) Wireless
LAN (WLAN) network interface controller complying with the 802.11 specification and Bluetooth over
USB interface. It combines a MAC, a 2T2R capable baseband, and RF in a single chip. An intelligent
Wi-Fi/Bluetooth coexistence algorithm is implemented to provide the best harmonized Wi-Fi and
Bluetooth radio performance.

Sichuan AI-Link Technology Co.,Ltd. page 2 of 10

WF-M638G-UWP1

Main Chipset

Mediatek MT7638GUN

Operating Frequency

2.4G

WiFi Standard

802.11b/g/n (2x2)

Bluetooth

Modulation

Data rates
Form factor

10pins ,

Host Interface

USB 2.0

PCB Stack

4-layers design

Dimension

Typical，33.0mm x70.0mm x 6.0mm

Antenna

Internal Antennas Design

Operation Temperature

-10℃ to +70℃

Storage Temperature

-40℃ to +125℃

Operation Voltage

5V +/-10%

IEEE 802.11b/g/n 2T2R USB WIFI Module&BT2.1+EDR/4.2/5.0

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

_ Bluetooth 2.1+EDR/4.2/5.0

1.3 System Functions

Table1: General Specification as below:

2.1+EDR/4.2/5.0
WIFI:11b: DBPSK, DQPSK and CCK and DSSS

11g: BPSK, QPSK, 16QAM, 64QAM and OFDM
11n: BPSK, QPSK, 16QAM, 64QAM and OFDM

BT: GFSK,π/4-DQPSK ,8-DPSK

11b: 1, 2, 5.5 and 11Mbps
11g: 6, 9, 12, 18, 24, 36, 48 and 54 Mbps
11n: MCS0~15, up to 300Mbps

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WF-M638G-UWP1

IEEE 802.11b/g/n 2T2R USB WIFI Module&BT2.1+EDR/4.2/5.0

2. Mechanical Specification

2.1 Mechanical Outline Drawing

Typical Dimension (W x L ): 33.0mm x70.0mm x 6.0mm
General tolerance: ±0.15mm

2.2 Product Picture

TOP VIEW BOTTOM VIEW

Sichuan AI-Link Technology Co.,Ltd. page 4 of 10

WF-M638G-UWP1

Items

Contents

Specification

IEEE802.11g

Mode

BPSK, QPSK, 16QAM, 64QAM and OFDM

Channel

CH1 to CH13 @ 11g

Data rate

6, 9, 12, 18, 24, 36, 48, 54Mbps

TX Characteristics

Min.

Typ.

Max.

Unit

Remark

1. Power Levels

1) 15dBm Target (For Each antenna port)
@ 11g/6Mbps~54Mbps

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

- - -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

- - -25

dB

4. Frequency Error

1) IEEE802.11g

-15 - 15

ppm

RX Characteristics

Min.

Typ.

Max.

Unit

5. Minimum Input Level Sensitivity(each chain)

1) 6Mbps (PER ≦10%)

- - -82

dBm

2) 9Mbps (PER ≦10%)

- - -81

dBm

3) 12Mbps (PER ≦10%)

- - -79

dBm

N

No

IEEE 802.11b/g/n 2T2R USB WIFI Module&BT2.1+EDR/4.2/5.0

2.3 Pin Define

NO Define
1 DC_EN Control the DC/DC to reset the Module

2 NC
3 VCC Power supply
4 BTDN USB D-

5 BTDP USB D+
6、7
8 3D_SYNC 3D signal synchronization
9 REG_ON Reset

10 WLAN_DEV_WAKE WIFI wake Host

GND Ground

ote

t Connect

3. Electrical Specification

This Specification is based-on conductive DVT testing result. The extreme condition include overall
temperature (0℃,+25℃,+40℃) and overall voltage (3.0V,3.3V,3.6V).

3. 1 IEEE 802.11g Section:

Sichuan AI-Link Technology Co.,Ltd. page 5 of 10

WF-M638G-UWP1

4) 18Mbps (PER ≦10%)

- - -77

dBm

5) 24Mbps (PER ≦10%)

- - -74

dBm

6) 36Mbps (PER ≦10%)

- - -70

dBm

7) 48Mbps (PER ≦10%)

- - -66

dBm

8) 54Mbps (PER ≦10%)

- - -65

dBm

6. Maximum Input Level (PER ≦10%)

1) IEEE802.11g

-20 - -

dBm

Items

Contents

Specification

IEEE802.11b

Mode

DBPSK, DQPSK and CCK and DSSS

Channel

CH1 to CH13

Data rate

1, 2, 5.5, 11Mbps

TX Characteristics

Min.

Typ.

Max.

Unit

1. Power Levels(Calibrated)

1) 17dBm Target (For Each antenna port)
@1Mbps~11Mbps

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

- - -10

dB

2) 2Mbps

- - -10

dB

3) 5.5Mbps

- - -10

dB

4) 11Mbps

-

-20

-10

dB

4. Frequency Error

-15 - 15

ppm

RX Characteristics

Min.

Typ.

Max.

Unit

5. Minimum Input Level Sensitivity(each chain)

1) 1Mbps (FER ≦8%)

-

-83

-76

dBm

2) 2Mbps (FER ≦8%)

-

-80

-76

dBm

3) 5.5Mbps (FER ≦8%)

-

-79

-76

dBm

4) 11Mbps (FER ≦8%)

-

-76

-76

dBm

6. Maximum Input Level (FER ≦8%)

-10 - -

dBm

IEEE 802.11b/g/n 2T2R USB WIFI Module&BT2.1+EDR/4.2/5.0

3.2 IEEE 802.11b Section:

Remark

Sichuan AI-Link Technology Co.,Ltd. page 6 of 10

WF-M638G-UWP1

Items

Contents

Specification

IEEE802.11n HT20 @ 2.4G

Mode

BPSK, QPSK, 16QAM, 64QAM and OFDM

Channel

CH1 to CH13 @ 2.4G

Data rate (MCS index)

MCS0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15

TX Characteristics

Min.

Typ.

Max.

Unit

Remark

1. Power Levels

1) 14dBm Target (For Each antenna port)
@ 2.4G/MCS0~MCS7

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

- - -45

dBr

3. Constellation Error(EVM) @ Target Power

1) MCS0

- - -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

- - -28

dB

4. Frequency Error

1) IEEE802.11n HT20 @ 2.4G

-15 - 15

ppm

RX Characteristics

Min.

Typ.

Max.

Unit

5. Minimum Input Level Sensitivity(each chain)

1) MCS0 (PER ≦10%)

- - -82

dBm

2) MCS1 (PER ≦10%)

- - -79

dBm

3) MCS2 (PER ≦10%)

- - -77

dBm

4) MCS3 (PER ≦10%)

- - -74

dBm

5) MCS4 (PER ≦10%)

- - -70

dBm

6) MCS5 (PER ≦10%)

- - -66

dBm

7) MCS6 (PER ≦10%)

- - -65

dBm

8) MCS7 (PER ≦10%)

- - -64

dBm

6. Maximum Input Level (PER ≦10%)

1) IEEE802.11n HT20 @ 2.4G

-20 - -

dBm

IEEE 802.11b/g/n 2T2R USB WIFI Module&BT2.1+EDR/4.2/5.0

3.3 IEEE 802.11n HT20 Section:

Sichuan AI-Link Technology Co.,Ltd. page 7 of 10

WF-M638G-UWP1

Items

Contents

Specification

IEEE802.11n HT40 @ 2.4G

Mode

BPSK, QPSK, 16QAM, 64QAM and OFDM

Channel

CH3 to CH11 @ 2.4G

Data rate (MCS index)

MCS0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15

TX Characteristics

Min.

Typ.

Max.

Unit

Remark

1. Power Levels (Calibrated)

1) 14dBm Target (For Each antenna port)
@ 2.4G/MCS0~MCS7

13

15

17

dBm

2. Spectrum Mask @ Target Power

1) at fc +/-21MHz

- - -20

dBr

2) at fc +/-40MHz

- - -28

dBr

3) at fc > +/-60MHz

- - -45

dBr

3. Constellation Error(EVM) @ Target Power

1) MCS0

- - -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

- - -28

dB

4. Frequency Error

1) IEEE802.11n HT20 @ 2.4G

-15 - 15

ppm

RX Characteristics

Min.

Typ.

Max.

Unit

5. Minimum Input Level Sensitivity(each chain)

1) MCS0 (PER ≦10%)

- - -79

dBm

2) MCS1 (PER ≦10%)

- - -76

dBm

3) MCS2 (PER ≦10%)

- - -74

dBm

4) MCS3 (PER ≦10%)

- - -71

dBm

5) MCS4 (PER ≦10%)

- - -67

dBm

6) MCS5 (PER ≦10%)

- - -63

dBm

7) MCS6 (PER ≦10%)

- - -62

dBm

8) MCS7 (PER ≦10%)

- - -61

dBm

6. Maximum Input Level(PER ≦10%)

1) IEEE802.11n HT20 @ 2.4G

-20 - -

dBm

IEEE 802.11b/g/n 2T2R USB WIFI Module&BT2.1+EDR/4.2/5.0

3.4 IEEE 802.11n HT40 Section:

Sichuan AI-Link Technology Co.,Ltd. page 8 of 10

WF-M638G-UWP1

Items

Contents

Specification

BT2.1+EDR/4.2/5.0

Mode

GFSK, π/4-DQPSK and 8-DPSK

Number of Channel

0,39,78 Channel

Frequency Band

2.400 ~ 2.4835 GHz

Min.

Typ.

Max.

Unit

Remark

1. Output Power

6

-

dBm

2.Gain step

2 4 8

dB

3. Receiver sensitivity (BER ≦0.1%)

-

-93.5

-80

dBm

4. Maximum usable signal (BER ≦0.1%)

-

-5 -

5. C/I co-channel (BER<0.1%)

- 4 11

dB

6. C/I 1MHz (BER<0.1%)

-

-14 0 dB

7. C/I 2MHz (BER<0.1%)

-

-42

-30

dB

8. C/I≥3MHz (BER<0.1%)

-

-49

-40

dB

9. C/I Image channel (BER<0.1%)

-

-25

-9

dB

10. C/I Image 1MHz (BER<0.1%)

-

-50

-20

dB

11. Inter-modulation

-

-13 - dB

12. Out-of-band blocking

1). 30MHz to 2000MHz

-10 - -

dBm

2). 2000MHz to 2399MHz

-27 - -

dBm

3). 2498MHz to 3000MHz

-27 - -

dBm

4). 3000MHz to 12.75GHz

-10 - -

dBm

13. Modulation characteristics

1). Δf1avg

140

157

175

KHz

2). Δf2max (For at least 99.9% of all Δf2max)

115

140 - KHz

3). Δf1avg /Δf2avg

0.8

0.98 - KHz

14. ICFT

-75

±20

+75

KHz

15. Carrier frequency drift

1). One slot packet (DH1)

-25

±15

+25

KHz

2). Two slot packet (DH3)

-40

±15

+40

KHz

3). Five slot packet (DH5)

-40

±15

+40

KHz

4). Max drift rate

- 6 20

KHz/50us

16. TX output spectrum(20dB bandwidth)

-

922

1000

KHz

17. In-Band spurious emission

1). ±2MHz offset

-

-45

-20

dBm

2). ±3MHz offset

-

-48

-40

dBm

3). >±3MHz offset

-

-48

-40

dBm

IEEE 802.11b/g/n 2T2R USB WIFI Module&BT2.1+EDR/4.2/5.0

3.6 Bluetooth Section:

Sichuan AI-Link Technology Co.,Ltd. page 9 of 10

IEEE 802.11b/g/n 2T2R USB WIFI Module&BT2.1+EDR/4.2/5.0

Description

Average current（mA）

Sleep mode，radio off

1.5

2.4GHz RX power saving，DTIM=1

3.3

2.4GHz RX active，HT20，MCS15

144

2.4GHz TX CCK，11Mbps@21dBm

403

2.4GHz TX HT20，MCS15 @17.5dBm

496

2.4GHz TX HT20，MCS8 @18dBm

520

Description

Average current（mA）

Sleep mode，radio off

1.5

Bluetooth TX@9dBm

42

Bluetooth RX

21

Bluetooth SCO connection，HV3 packets + sniff mode
+ scan（page scan interval=1.28sec，inquiry scan
interval=2.56s，sniff interval=500ms）

21

Bluetooth page scan + inquiry scan（（page scan
interval=1.28sec，inquiry scan interval=2.56s）

1.7

Bluetooth page scan（page scan interval=1.28sec）

1.6

4. Current consumption

4.1 WLAN current consumption

4.2 Bluetooth current consumption

WF-M638G-UWP1

Note：

1、 All result is measured provided VDD33 is 3.3V. Tx power is measured at

antenna port. Temperature is 25℃.
2、 Host interface is USB2.0
3、 Duty cycle for TX/RX measurement is 100%

4、 The chip variation is +/-15%
5、 Software Requirements

The driver supports the following operating systems: Linux, Microsoft Windows XP, Vista and Win7.
Mfg. software tool is MT76x8BUN_QA_Tool.

IC Statement
This device complies with Industry Canada’s licence-exempt RSSs. Operation is subject to the
following two conditions:
(1) This device may not cause interference; and
(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.

Le présent appareil est conforme aux CNR d'Industrie Canada applicable aux appareils radio exempts
de licence. 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

Sichuan AI-Link Technology Co.,Ltd. page 10 of 10

CE tatement
Herby, Sichuan AI-Link Technology Co., Ltd. declares that this Wireless Module&Bluetooth
Module，WF-M638G-UWP1 is in compliance with the essential requirements and other relevant
provisions of Directive 2014/53/EU.

allowed to be used in all EU member states.

Operation Temperature：Use the WF-M638-UWP1 in the environment with the temperature between
0℃ and 60℃
Operation Frequency range: Wifi: 2412MHz-2472MHz BT/BLE:

In accordance with Article 10(2) and Article 10(10), this product

2402MHz-2480MHz

Max RF Output Power:

The above frequency can be used of Europe without restriction.

Manufacturer：Sichuan AI-Link Technology Co., Ltd.
Address：Anzhou,Industrial park,Mianyang,Sichuan, China

Tel: [phone]
Fax: [phone]
E-mail: [e-mail]

FCC Statement
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:

-- 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.
FCC Radiation Exposure Statement
The modular can be installed or integrated in mobile or fix devices only. This modular be installed in
any portable device, for example, USB dongle like transmitters is forbidden. This modular complies
with FCC RF radiation exposure limits set forth for an uncontrolled environment. This transmitter must
not be collocated or operating in conjunction with antenna or transmitter. If the FCC identification
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 label referring to the enclosed module. This
exterior label can use wording such as the following:” Contains Transmitter Module FCC ID: 2AOKI­WFM6638GUWP1 Or Contains FCC ID: 2AOKI-WFM638GUWP1 when the module is installed inside another
device, the user manual of this device must contain below warning statements;1. 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.(2) This device must accept any interference received, including
interference that may undesired operation.2. Changes or modifications not expressly approved by the
party responsible for compliance could void the user's authority to operate the equipment. The devices
must be installed and used in strict accordance with the manufacturer’s instructions as described in
the user documentation that comes with the product. This device is intended only for OEM integrators
under the followingconditions:1) The antenna must be installed such that 20 cm is maintained between
the antenna and user.2) The transmitter module may not be co-located with any other transmitter or
antenna. Module Antenna Type: Ceramic Antenna, ,ANT Gain: BT/BLE: 2dBi, 2.4G Wifi: 2dBi

For 2.4G WIFI: 0.0286W
For BT: 0.0059W
For BLE: 0.0049W