HUNAN FN LINK TECHNOLOGY 3131A S User Manual
WIFI Module
Fn-Link
3131A-S
User's Manual
3131A-S
Revision History
Version Date Description Draft Approved
1.0 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
1.2 2017-07-14 Modified Pin13、39、40 function Colin Ming William Tan
1.3 2017-08-04
Added 32.768K clock input
Colin Ming William Tan
requesting
Modified SDIO specification
Colin Ming William Tan
description
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3131A-S
CONTENTS
1. Introduction ..................................................................................................................... 1
2. Features ........................................................................................................................... 2
3. General Specification ..................................................................................................... 2
3.1 General Specification ................................................................................................. 2
4. WiFi RF Specification ..................................................................................................... 3
4.1 2.4GHz RF Specification............................................................................................ 3
5. Power Consumption ....................................................................................................... 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
8.1 SDIO Pin Description ............................................................................................... 11
8.2 SDIO Default Mode Timing Diagram ....................................................................... 11
8.3 SDIO High Speed Mode Timing Diagram ................................................................ 12
8.4 SDIO Bus Timing Specifications in SDR Modes ...................................................... 13
9.Reference Design ........................................................................................................... 14
10.Recommended Reflow Profile .................................................................................... 15
11. Packing Information .................................................................................................... 16
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3131A-S
1. Introduction
3131A-S is a small size and low profile of WiFi module, board size is 12mm*12mm
with module thickness of 1.7mm. It can be easily manufactured on SMT process and
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 technology.
3131A-S uses highly integrated WiFi single chip based on advanced COMS process.
3131A-S integrates whole WiFi function blocks into a chip, such as SDIO/MPU, MAC,
BB, AFE, RFE, PA, EEPROM and LDO/SWR, except fewer passive components
remained on PCB.
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3131A-S
2. Features
Operate at ISM frequency bands (2.4GHz)
SDIO interface for WiFi
Low power dissipation
High transmitting power
High receiving sensitivity
IEEE standards support: IEEE 802.11b, IEEE 802.11g, IEEE 802.11n.
Enterprise level security which can apply WPA/WPA2 certification for 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
Model Name 3131A-S
Product Description Support WiFi functionality
Dimension
WiFi Interface
Operating temperature -30°C to 70°C
Storage temperature -40°C to 125°C
3.1.2 Recommended Operating Rating
Operating Temperature -30 25 70
L x W x H: 12 x 12 x1.8 (typical) mm
Support SDIO
Min. Typ. Max. Unit
deg.C
VCC33 3.3 3.6 4.8 V
VDDIO - 1.8V - V
Note: Suggested power input range in 3.6V-4.5V.
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4. WiFi RF Specification
4.1 2.4GHz RF Specification
Feature Description
Operating Frequency 2.412～2.462GHz
WiFi:
3131A-S
Standards
Modulation
PHY Data rates
Transmit Output Power
IEEE 802.11b, IEEE 802.11g, IEEE 802.11n,
IEEE 802.11d, IEEE 802.11e, IEEE 802.11h,
IEEE 802.11i
WiFi:
802.11b: DSSS(1M,2Mbps), CCK(11, 5.5Mbps),
802.11 g/n: OFDM
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
WiFi:
802.11b 18.5
802.11g 16.5 dBm
802.11n
802.11b /1Mbps : EVM≦-10dB
≦
≦
≦
≦
dBm
15.5 dBm (MCS 7_HT20)
14.5 dBm (MCS 7_HT40)
EVM
Receiver Sensitivity
(WiFi)
802.11b /11Mbps : EVM≦-10dB
802.11g /6Mbps : EVM≦-5dB
802.11g /54Mbps : EVM≦-25dB
802.11n /6.5Mbps : EVM≦-5dB
802.11n /65Mbps : EVM≦-28dB
802.11n /13.5Mbps : EVM≦-5dB
802.11n /135Mbps : EVM≦-28dB
802.11b@10% PER
1Mbps ≦-98dBm
2Mbps≦ -94dBm
5.5Mbps≦ -93dBm
11Mbps ≦-90dBm Max input level≥-8
802.11g@10% PER
6Mbps ≦-94dBm
9Mbps ≦ -92dBm
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12Mbps≦ -91dBm
18Mbps≦ -89dBm
24Mbps≦ -86dBm
36Mbps≦ -82dBm
48Mbps ≦-78dBm
54Mbps ≦-77dBm Max input level≥-20
802.11n@10% PER
HT20_MCS 0 ≦-93dBm HT40_MCS 0≦-90
HT20_MCS 1≦ -90dBm HT40_MCS 1≦-87
HT20_MCS 2 ≦-88dBm HT40_MCS 2≦-85
HT20_MCS 3 ≦-85dBm HT40_MCS 3≦-82
HT20_MCS 4 ≦-82dBm HT40_MCS 4≦-79
HT20_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
3131A-S
WiFi 2.4GHz:
Operating Channel
Media Access Control WiFi: CSMA/CA with ACK
Antenna
Network Architecture
Security
OS Supported Android /Linux
Host Interface SDIO2.0
Operating Voltage 3.3-4.8V Vdc, 1.8V I/O supply voltage
Dimension Typical 12*12*1.8 mm
See page 18
Ad-hoc mode (Peer-to-Peer )
Infrastructure mode
Software AP
WiFi Direct
WPA, WPA-PSK, WPA2, WPA2-PSK, WEP 64bit & 128bit,
11: (Ch. 1-11) – United States
13: (Ch. 1-13) – Europe
IEEE 802.11x, IEEE 802.11i
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