Skylab M and C Technology SKW71 WIFI module User Manual SKW18 2X2 USB Wi Fi Module

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Document ID	2799100
Application ID	So0Ex53DQObO4x0fM75Kpw==
Document Description	User manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	54.56kB (682030 bits)
Date Submitted	2015-10-30 00:00:00
Date Available	2015-10-30 00:00:00
Creation Date	2015-10-27 15:04:28
Producing Software	Adobe PDF Library 9.0
Document Lastmod	2015-10-27 15:40:18
Document Title	SKW18 2X2 USB-Wi-Fi Module
Document Author:	User

深圳市天工测控技术有限公司
SKW71-User Manual
SKW71 User Manual
General Description
The module SKW71 compliant to 802.11 b/g/n Wi-Fi Solution for low power, low-cost, and
highly integrated AP and consumer electronic devices, the module requiring only a external 3.3V
power supply and connection to antenna.
The module based on the single chip AR9331 which integrates an 802.11n 1x1
MAC/BB/radio with internal PA and LNA. It supports 802.11n operations up to 72 Mbps for 20
MHz and 150 Mbps for 40 MHz channel respectively, and IEEE 802.11b/g data rates.
The module support AP mode and client mode and repeater mode and UART wifi.
Applications
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AP WIFI
UART WIFI
Repeater WIFI
IP TV
IP DVD(Internet VOD Player)
Set Top Box
Home Gateways
Gaming Consoles
DVR
Figure 1: SKW71 Top View
SKW71-UM-001,A/1
深圳市天工测控技术有限公司
SKW71-User Manual
Features
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Compliant to IEEE 802.11b/g/n 1x1WLANs
DDR2 memory up to 512Mb
Flash memory up to 64Mb
1LAN ports and 1 WAN port
High-speed UART
USB 2.0 host device mode support
Support AP/Client/Repeater mode
Support UART to wifi transparent
Security: WEP 64/128, WPA, WPA2, TKIP, AES, WAPI
RoHS compliance meets environment-friendly requirement.
45(L) x 17.3(W) x 9.0(H) mm small dimension
Module Pinout
Figure 2: SKW71 Dimensions
Figure 3: SKW71 Pin Package
Pin Description
SKW71-UM-001,A/1
深圳市天工测控技术有限公司
VDD_3.3V
10
11
12
13
14
15
16
17
18
19
20
21
22
GND
GPIO_23
WAN_PORT_RX+
I2S_WS(GPIO_19)
WAN_PORT_RXI2S_MICIN(GPIO_22)
WAN_PORT_TX+
I2S_MCK(GPIO_21)
WAN_PORT_TXI2S_SD(GPIO_20)
LAN_PORT0_RX+
I2S_CK(GPIO_18)
LAN_PORT0_RXUSB +
LAN_PORT0_TX+
USB LAN_PORT0_TXLED7(GPIO_27)
GND
LED8(GPIO_26)
VDD_2.0V OUTPUT
RESET_CONFIG
23 (UART_CTS)
(GPIO_12)
24 VDD_2.0V OUTPUT
JUMPSTART
25
(UART_RTS) (GPIO_11)
26 GND
27 GND
28 SPI_MISO
29 VDD_3.3V
30 SPI_CLK
31 VDD_3.3V
32 SPI_MOSI
33 LED6 (GPIO_17)
SKW71-User Manual
3.3V input 1000mA, recommended voltage 3.3V,Min2.97V, MAX
3.63V
Ground
KEY_INPUT, be free for customer defined.
Ethernet port
Word select for stereo
Ethernet port
I2S Data input
Ethernet port
Master clock
Ethernet port
Serial data input/output
Ethernet port
Stereo clock
Ethernet port
USB signal, carries USB data to and from the USB 2.0 PHY
Ethernet port
USB signal, carries USB data to and from the USB 2.0 PHY
Ethernet port
SYSTEM LED
Ground
JMP_START LED
Power supply output for peripheral network transformer
resets the firmware to its default configuration, it has a internal
10k drop down resistance, and trigger while Pulling up
Power supply output for peripheral network transformer
KEY_INPUT to start WPS function, it has a internal 10k drop
down resistance, and trigger while Pulling up
Ground
Ground
SPI serial interface
3.3V input 1000mA, recommended voltage 3.3V,Min2.97V, MAX
3.63V
SPI serial interface
3.3V input 1000mA, recommended voltage 3.3V, Min2.97V, MAX
3.63V
SPI serial interface
WLAN LED
SKW71-UM-001,A/1
深圳市天工测控技术有限公司
34
35
36
37
38
39
40
LED2 (GPIO_13)
LED1 (GPIO_1)
LED0 (GPIO_0)
UART_RX (SPI_CS1)
UART_TX (SPI_CS2)
GND
GND
SKW71-User Manual
LAN_PORT0_LED
USB LED
Wireless LED
Serial data in
Serial data out
Ground
Ground
PCB Footprint and Dimensions
Figure 4: SKW71 Footprint
SKW71-UM-001,A/1
深圳市天工测控技术有限公司
SKW71-User Manual
Reference design schematic
SKW71-UM-001,A/1
深圳市天工测控技术有限公司
SKW71-User Manual
SKW71-UM-001,A/1
深圳市天工测控技术有限公司
SKW71-User Manual
SKW71-UM-001,A/1
深圳市天工测控技术有限公司
SKW71-User Manual
Warning:
Changes or modifications not expressly approved by the party responsible for compliance could void
your authority to operate the equipment.
NOTE: 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:
1.Reorient or relocate the receiving antenna.
2.Increase the separation between the equipment and receiver.
3.Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
4.Consult the dealer or an experienced radio/TV technician for help.
Any company of the host device which install this modular with limit modular approval should perform the test of radiated
emission and spurious emission according to FCC part 15C : 15.247 ; IC RSS 247 ;15.209 ; RSS GEN requirement， Only if the test
result comply with FCC part 15C : 15.247 ; IC RSS 247 ;15.209 ; RSS GEN requirement，then the host can be sold legally.
Skylab M&C Technology Co., Ltd.
Address: 9th Floor, Zhongguang Building, Yayuan Road, Bantian, Shenzhen
Phone: 86-755 8340 8210（Sales Support）
Phone: 86-755 8340 8510（Technical Support）
Fax: 86-755-8340 8560
E-Mail: sales1@skylab.com.cn
Website: www.skylab.com.cn
SKW71-UM-001,A/1
FCC Statement
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.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the
equipment.
NOTE: 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.
FCC Radiation Exposure Statement
The modular can be installed or integrated in mobile or fix devices only. This modular cannot 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 co‐located
or operating in conjunction with any other antenna or transmitter. This modular must be installed and operated with a minimum distance of 20
cm between the radiator and user body.
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 a label referring to the enclosed module. This exterior label can use wording such as the following:
“Contains Transmitter Module FCC ID:2ACOE‐SKW71 Or Contains FCC ID:2ACOE‐SKW71”
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 cause 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
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.
Cet appareil est conforme aux CNR exemptes de licence d'Industrie Canada . Son fonctionnement est soumis aux deux conditions suivantes :
( 1 ) Ce dispositif ne peut causer d'interférences ; et
( 2 ) Ce dispositif doit accepter toute interférence , y compris les interférences qui peuvent causer un mauvais fonctionnement de l'appareil.
IC Radiation Exposure Statement
The modular can be installed or integrated in mobile or fix devices only. This modular cannot be installed in any portable device, for example,
USB dongle like transmitters is forbidden.
This modular complies with IC RF radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co‐located
or operating in conjunction with any other antenna or transmitter. This modular must be installed and operated with a minimum distance of 20
cm between the radiator and user body. Cette modulaire doit être installé et utilisé à une distance minimum de 20 cm entre le radiateur et le
corps de l'utilisateur.
If the IC 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:20742‐SKW71”
when the module is installed inside another device, the user manual of this device must contain below warning statements;
1. 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.
2. Cet appareil est conforme aux CNR exemptes de licence d'Industrie Canada . Son fonctionnement est soumis aux deux conditions suivantes :
( 1 ) Ce dispositif ne peut causer d'interférences ; et
( 2 ) Ce dispositif doit accepter toute interférence , y compris les interférences qui peuvent causer un mauvais fonctionnement de l'appareil.
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

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