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This module has been designed to operate with a PIFA antenna having a 
maximum gain of 2dBi. Only this type of antenna may be used, the 
manufacturer recommended antenna as 
 
below: 

Ant. 

(Chain) 

Brand 

Model name 

Antenna 

Type 

Connector 

Gain   
(dBi) 

XK 

XKFPC-2D4-5D8-1

50 

PIFA 

I-PEX 

0.0 

XK 

XK-QX2400-PCB-1

40 

PIFA 

I-PEX 

2.0 

 
 
 
 
 
 
 
 

3131A-S

FN-LINK TECHNOLOGY LIMITED                               

18

                           

Proprietary & Confidential Information

 

Note: 1. This module has only one antenna port
          2. Antenna 1 and antenna 2 are used for different customers.

 

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. 

 

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
This equipment complied with FCC radiation exposure limits set forth for an uncontrolled 
environment. This equipment should be installed and operated with minimum distance 20cm 
between the radiator & your body.

Summary of Contents for 3131A-S

Page 1: ...Fn Link 3131A S User s Manual WIFIModule...

Page 2: ...2017 06 01 First release Colin Ming William Tan 1 1 2017 06 22 Modified input voltage range Colin Ming William Tan 1 1 2017 06 22 Added 32 768K clock input requesting Colin Ming William Tan 1 2 2017 0...

Page 3: ...5 6 Pin Assignments 6 6 1 Pin Outline 6 6 2 Pin Definition 6 7 Dimensions 8 7 1 Physical Dimensions 8 7 2 Module Physical Dimensions 9 7 3 Layout Recommendation 10 8 Host Interface Timing Diagram 11...

Page 4: ...nd highly suitable for tablet PC ultra book mobile device and consumer products It providesSDIO interface for WiFi The WiFi throughput can go up to 150Mbps in theory by using 1x1 802 11b g n SISO tech...

Page 5: ...WiFi WiFi 1 transmitter and 1 receiver allow data rates supporting up to 150 Mbps downstream and 150 Mbps upstream PHY rates 3 General Specification 3 1 General Specification 3 1 2 Recommended Operat...

Page 6: ...PHY Data rates WiFi 802 11b 11 5 5 2 1 Mbps 802 11g 54 48 36 24 18 12 9 6 Mbps 802 11n up to 150Mbps Transmit Output Power WiFi 802 11b 18 5 dBm 802 11g 16 5 dBm 802 11n 15 5 dBm MCS 7_HT20 14 5 dBm...

Page 7: ...MCS 5 78dBm HT40_MCS 5 75 HT20_MCS 6 76dBm HT40_MCS 6 73 HT20_MCS 7 75dBm HT40_MCS 7 71 Max input level 20 Operating Channel WiFi 2 4GHz 11 Ch 1 11 United States 13 Ch 1 13 Europe Media Access Control...

Page 8: ...ary Confidential Information 5 Power Consumption Power Consumption Typical by using SWR TX Mode Throughput mode 230mA MCS7 BW40 16dBm RX Mode Throughput mode 66mA MCS7 BW40 60dBm Associated Idle power...

Page 9: ...ground 6 Host wake device I Host Wake up WiFi rising edge trigger 7 GPIO3 I O Floating Don t connected to ground 8 NC Floating Don t connected to ground 9 VCC P Main power voltage source input 3 3V 4...

Page 10: ...t connected to ground 29 NC Floating Don t connected to ground 30 NC Floating Don t connected to ground 31 GND Ground connections 32 NC Floating Don t connected to ground 33 GND Ground connections 34...

Page 11: ...3131A S FN LINK TECHNOLOGY LIMITED 8 Proprietary Confidential Information 7 Dimensions 7 1 Physical Dimensions Unit mm TOP VIEW Side View 1 7 0 1...

Page 12: ...3131A S FN LINK TECHNOLOGY LIMITED 9 Proprietary Confidential Information 7 2 Module Physical Dimensions Unit mm TOP VIEW...

Page 13: ...3131A S FN LINK TECHNOLOGY LIMITED 10 Proprietary Confidential Information 7 3 Layout Recommendation Unit mm TOP VIEW...

Page 14: ...ty to stop the SDIO clock and map the interrupt signal into a GPIO pin This out of band interrupt signal notifies the host when the WLAN device wants to turn on the SDIO interface The ability to force...

Page 15: ...3131A S FN LINK TECHNOLOGY LIMITED 12 Proprietary Confidential Information 8 3 SDIO High Speed Mode Timing Diagram...

Page 16: ...3131A S FN LINK TECHNOLOGY LIMITED 13 Proprietary Confidential Information 8 4 SDIO Bus Timing Specifications in SDR Modes Clock timing SDR Modes...

Page 17: ...3131A S FN LINK TECHNOLOGY LIMITED 14 Proprietary Confidential Information 9 Reference Design...

Page 18: ...A S FN LINK TECHNOLOGY LIMITED 15 Proprietary Confidential Information 10 Recommended Reflow Profile Referred to IPC JEDEC standard Peak Temperature 250 C Number of Times 2 times 2 5 se 2 5 40 70 sec...

Page 19: ...tary Confidential Information 11 Packing Information Tape and Reel Package Using self adhesive tape Size of black tape 24mm 32 6m the cover tape 21 3mmm 32 6m Color of plastic disc blue A roll of 2000...

Page 20: ...3131A S FN LINK TECHNOLOGY LIMITED 17 Proprietary Confidential Information The packing case size 350 210 370mm...

Page 21: ...ned 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 ac...

Page 22: ...ement shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or alternatively shall be placed on the container in which the device is marketed The module mu...

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