OEM Qualcomm Atheros AR9331 AR9341 QCA9531 mini WIFI Module

pin

definition

pin

definition

2

5V

1

5V

6

3.3V

5

3.3V

8

GPIO16

7

GPIO17

10

GPIO4

9

GPIO12

12

RST_B

11

GPIO13

14

UART_TX

13

USB_DP

16

UART_RX

15

USB_DM

18

GND

17

GND

20

2.5V

19

AVDD20

22

GND

21

GND

24

P0_RX-

23

P4_TX-

26

P0_RX+

25

P4_TX+

28

P0_TX-

27

P4_RX-

30

P0_TX+

29

P4_RX+

32

GND

31

GND

34

GPIO2

33

GPIO1

36

GPIO3

35

GPIO0

38

GPIO11

37

SPI_CLK

40

SPI_MOSI

39

SPI_MISO

Features

Specifications

Wireless standard

802.11b/g/n, 2.4Ghz

Memory

8MB flash,64MB ram

Antenna interface

1 PC I-PEX connector(can connect the external antenna)

Work mode

Router/Bridge/Ap mode

Physics rate

IEEE 802.11b: 11Mbps

IEEE 802.11g: 54 Mbps

IEEE 802.11n: 300Mbps

Management mode

Support local WEB management

Radio

Frequency range

2.412 ~ 2.472 GHz

Channel

13 channels. which can be configured to the specifications

of the United States, Canada, Europe, Japan, China and other regions.

Modulation mode

DSSS , CCK and OFDM

Coding scheme

BPSK, QPSK, 16QAM and 64QAM

Antenna

Onboard i-pex receptacle to connect external antenna

RF Received Sensitivity

802.11b:

-82dBm @ 1 Mbps; -80dBm @ 2 Mbps; 

-78dBm @ 5.5 Mbps; -76dBm @ 11 Mbps

802.11g:

-82dBm @ 6 Mbps; -81dBm @ 9 Mbps; 

-79dBm @ 12 Mbps; -77dBm @ 18 Mbps; 

-74dBm @ 24 Mbps; -70dBm @ 36 Mbps; 

-66dBm @ 48 Mbps; -65dBm @ 54 Mbps

802.11n:

-65dBm @ 72 MbpsHT20;

-62dBm @ 150 MbpsHT40;

RF Maximum output power

802.11b:

18 ±1dBm           

802.11g:

13 ± 1dBm @ 54 Mbps; 14 ± 1dBm @ 48 Mbps;

15 ± 1dBm @ 36 Mbps; 16.5 ± 1dBm @6~24Mbps.

802.11nHT20:

12 ± 1dBm @ MCS7HT20; 13 ± 1dBm @ MCS6 HT20;

14 ± 1dBm @ MCS5 HT20; 15 ± 1dBm @ MCS4 HT20;

16± 1dBm @ MCS3 HT20; 17 ± 1dBm @ MCS2 HT20;

17 ± 1dBm @ MCS1 HT20; 17± 1dBm @ MCS0 HT20.

802.11nHT40:

12 ± 1dBm @ MCS7HT40; 13 ± 1dBm @ MCS6 HT40;

14 ± 1dBm @ MCS5 HT40; 15 ± 1dBm @ MCS4 HT40;

15.5± 1dBm@MCS3 HT40; 15.5± 1dBm @ MCS2 HT40;

15.5±1dBm @MCS1 HT40; 15.5 ± 1dBm @ MCS0 HT40.

Encryption mode

802.11i security: WEP-64/128, TKIP (WPA-PSK) and AES (WPA2-PSK)

Ethernet

port

function

WAN Port

1 FE WAN interface, 10/100M auto adaptive, Full/Half duplex,support Auto-MDI/MDIX, Ethernet interface connect with mainboard by the pins in module.

LAN Port

2FE WAN interface, 10/100M auto adaptive, Full/Half duplex,support Auto-MDI/MDIX, Ethernet interface connect with mainboard by the pins in module.

 I/O Function

Function Interface

1xUART, 1x I2S, 1xUSB host/client, 1xWAN, 2xLAN

GPIO

18 general-purpose I / O ports (Part of the I / O ports will bemultiplexed with other interfaces)

Operating voltage

3.3V

3.3VPeak current

500mA

Operating temperature

0°C to +40°C 

Operation humidity

10 ~ 90%(non-condensed)

Product size

40 mm x 40 mm