Arcadyan Technology WN7911A 2.4GHZ SDIO Sip Module User Manual WN7911A LF manual BVADT
Arcadyan Technology Corporation 2.4GHZ SDIO Sip Module WN7911A LF manual BVADT
User Manual.pdf

USER MANUAL 
WN7911A-LF  1
USER MANUAL 
WN7911A-LF 
MPN F0ILF7911000J 
(Hirose 1.5 mm Connector) 
1x1 Single Band   
802.11 b/g/n WiFi Module 
V 1.2
. 

USER MANUAL 
WN7911A-LF  2
  Introduction 
1.1  Introduction 
WN7911A-LF  is  a  1x1  single-band  2.4GHz  IEEE  802.11  b/g/n  WiFi  module  with 
on-board PCB printed antenna. WN7911A-LF attains the data transmission speed up to 
150  Mbps  and  provide  SDIO  physical  interface  to  the  board  for  WiFi.    This  WiFi 
module is the low power consumption, high performance and the best WiFi solution 
for  consumer  devices  which  need  the  compact  size  embedded  WiFi  module  for 
wireless connectivity like smart mobile phone, e-book, printer, tablet PC and so on. 
1.2  Product Features 
 Small form factor: 25mm x 18mm x 2.4mm 
 High speed for wireless LAN connection, up to 150 Mbps for uplink and 150 Mbps for 
downlink 
 Backward compatible to the existing IEEE 802.11b/g WLAN infrastructure 
 Low power consumption and excellent power management 
 Security features 
 WPA
 TM
 and WPA2
TM
 (personal) support for powerful encryption and 
authentication 
 AES and TKIP acceleration hardware for fast data encryption and 802.11i 
compatibility 
 Cisco Compatible Extension (CCX, CCX 2.0, CCX 3.0, CCX 4.0) certified 
 SecureEasySetup
TM   
for simple WiFi setup and configuration 
 Support WPS 
 QOS features 
 802.11e 
 802.11h 
 802.11i 
 802.11j 

USER MANUAL 
WN7911A-LF  3
2    Bill of Material   
Item
QTY
Reference  Part  Description  Vendor P/N  Manufacturer
1
10
C3,C5,C7,C11,C13, 
C16,C17,C19,C23,C25 
0.1uF 
C SMD CER 0.1uF 10% 16V X7R 0402 T0.5 HF    MURATA 
2
3
C4,C6,C8  10uF  C SMD CER 10uF 20% 6.3V X5R 0603 T0.8mm HF  CC0603MRX5R5BB106  YAGEO 
3
7
C9,R19,R20,R21,R22, 
R23,R26 
DNI 
4
8
C10,C12,C14,C18,C20,
C22,C24,C26 
2.2uF 
C SMD CER 2.2uF 10% 6.3V X5R 0603 T0.8mm LT/LF  0603X225K6R3CT  WALSIN 
5
1
R17  0 OHM  RES SMD 0ohm 1/16W 0402 T0.35 HF    WALSIN 
6
1
C46  1.8pF  C SMD HIGH-Q CER 1.8pF 0.25pF 50V NPO 0402 T0.5 HF    WALSIN 
7
1
C48  0.5pF  C SMD HIGH-Q CER 0.5pF +-0.25
pF 50V NPO 0402 T0.5 HF 
  MURATA 
8
1
C51  3.3nH  IND SMD 3.3nH +-0.1nH 190 mA 0402 LT/LF    MURATA 
9
1
L1  600 OHM  BEAD 100MHz 25% 1Kohm 100mA 0402 HF    TAI-TECH 
10
1
L2  INDUCTOR  ?!IND SMD 3.3uH 20% 1200mA 2.5x2.0 HF    MURATA 
11
1
R1  10K  RES SMD 10Kohm 5% 1/10W 0603 T0.45 HF  WR06X103JTL  WALSIN 
12
1
J1  Connector 
0.5 mm Pitch 1.5 mm Mating Height 14 Pin Plug 
Board-to-Board Connector. 
DF23C-14DP-0.5V  HIROSE 
13
1
U1  WS5700B-ZZ  802.11b/g/n 2.4GHz SDIO SiP Module    Arcadyan 
14
1
WN7911A-LF  PCB footprint  R0A3 PCB WN7911A-LF Carrier Board PCB ANT (4L)    Arcadyan 

USER MANUAL 
WN7911A-LF  4
3  Pin Definition 
Pin #  Type
Description 
1  P  Ground 
2  I/O  SDIO Data Line 2 
3  I/O  SDIO Clock 
4  P  Ground 
5  P  Ground 
6  I  System Reset 
7  I/O  SDIO Data Line 0 
8  I/O  SDIO Command 
9  P  Ground 
10  P  Ground 
11  I/O  SDIO Data Line 1 
12  I/O  SDIO Data Line 3 
13  P  SDIO_VCC 3.3V 
14  P  SDIO_VCC 3.3V 

USER MANUAL 
WN7911A-LF  5
4  SiP Module 
4.1  General Overview 
Item  Description 
SiP Module Dimension  10mm x 10mm x 1.2mm 
Chipset  Broadcom BCM4319 1x1 Single Band (2.4GHz) 
802.11n MAC/BB/RF on single chip with integrated 
CMOS PA. 
Module Interface  SDIO (4-bit) 
Module Pin Connection  48-pin LGA   
4.2  SiP Module Architecture 
4.2.1  WS5700B 

USER MANUAL 
WN7911A-LF  6
4.3  Outline Drawing 
4.3.1  Top Side View 
4.3.2  Bottom Side View 
4.4  Dimension, Marking and Pin Layout 
4.4.1  Side View 

USER MANUAL 
WN7911A-LF  7
4.4.2  Top Side View 
4.4.3  Bottom Side Function Pad (Top View) 

USER MANUAL 
WN7911A-LF  8
4.4.4  Bottom Side Ground Pad (Top View) 
4.4.5  Suggested Ground Pad Foot Print (Top View) 

USER MANUAL 
WN7911A-LF  9
4.5  Pin Description 
Pin 
#  Terminal Name  Pin 
Type
I/O 
Type
Description 
1  BTCX_RF_ACTIVE  Signal
I  Indicates  that  the  coexistent  BT  is  active: 
internal pull-down. 
2  BTCX_STATUS  Signal
I  Indicates the coexistent BT priority status and 
RX/TX direction. 
3  USB_AVDD12  Power
I  USB Phy core 1.2V supply 
4  USB_AVDD25  Power
I  USB Phy analog 2.5V supply 
5  USB_AVDD33  Power
I  USB Phy analog 3.3V supply 
6  VDD_AFE  Power
I  1.2V  filtered  supply  for  ADC;  1.2V  filtered 
supply for AFE AUX 
7  GND  Power
I  Ground   
8  USB20_DEV_DPLS  Signal
I/O  USB port data plus 
9  USB20_DEV_DMNS
Signal
I/O  USB port data minus 
10  GND  Power
I  Ground   
11  BTCX_FREQ  Signal
I 
Indicates  that  the  coexistent  BT  is  about  to 
transmit  on  a  restricted  channel:  internal 
pull-down. 
12  GPIO_8  Signal
I/O  General-purpose interface pins. 
13  BTCX_TXCONF  Signal
O  Output  permission  for  the  coexistent  BT  to 
transmit. 
14  UART_TX  Signal
O  Serial Input for UART 
15  UART_RX  Signal
I  Serial Output for UART 
16  GND  Power
I  Ground   
17  VIN_LDO  Power
I  Input supply pin for CLDO and LNLDO1 
18  VDD_CORE_1.2V  Power
O  1.2V output for core LDO, 200mA 
19  VDD_RADIO_PLL_O
Power
O  1.2V output for low noise LNLDO1, 150mA 

USER MANUAL 
WN7911A-LF  10
20  VDD_3.3V  Power
O  Internal PALDO output or feedback of output 
from external PNP 
21  GPIO_0  Signal
I/O  General-purpose interface pins. 
22  VDD_2.5V  Power
O  2.5V LDO2p5 output 
23  GND  Power
I  Ground   
24  VLX  Power
O  Core buck regulator: Output to inductor 
25  VIN_3V_5V  Power
I  Battery supply input for PALDO;   
Core buck regulator: Battery voltage input 
26  GPIO_2  Signal
I/O  General-purpose interface pins. 
27  GND  Power
I  Ground   
28  SDIO_CLK  Signal
I/O  SDIO clock 
29  GPIO_3  Signal
I/O  General-purpose interface pins. 
30  SDIO_DATA_0  Signal
I/O  SDIO data line 0 
31  GPIO_1  Signal
I/O  General-purpose interface pins. 
32  SDIO_DATA_1  Signal
I/O  SDIO data line 1 
33  SDIO_DATA_2  Signal
I/O  SDIO data line 2 
34  GPIO_9  Signal
I/O  General-purpose interface pins. 
35  RESETn  Signal
I 
Low asserting  global chip  reset:  digital  input 
pin. 
Used  by  PMU  to  enable/disable  power  the 
internal regulators. 
36  SDIO_CMD  Signal
I/O  SDIO command line 
37  SDIO_DATA_3  Signal
I/O  SDIO data line 3 
38  VDDIO  Power
I 
Digital I/O supply (1.8V to 3.3V) 
VDDIO should be supplied externally; 
SDIO I/O supply (1.8V to 3.3V) 
39  GND  Power
I  Ground   

USER MANUAL 
WN7911A-LF  11
40  VDD_PLL  Power
I  1.2V supply for PLL; 
1.2V crystal oscillator filtered power supply 
41  GND  Power
I  Ground   
42  VDD_RADIO_PLL_I  Power
I  1.2V  supply  for  radio  transmit  and  receive 
sections 
43  GND  Power
I  Ground   
44  GND  Power
I  Ground   
45  GND  Power
I  Ground   
46  ANT  Signal
I/O  Antenna port 
47  GND  Power
I  Ground   
48  VDD_3.3V  Power
I 
RF I/O supply (2.6V to 3.3V); 
3.3V OTP power supply (no lower than 3.0V);
3.3V for the internal power amplifiers 
G1  GND  Power
I  Ground pad   
G2  GND  Power
I  Ground pad   
G3  GND  Power
I  Ground pad   
G4  GND  Power
I  Ground pad   
G5  GND  Power
I  Ground pad   
G6  GND  Power
I  Ground pad   
G7  GND  Power
I  Ground pad   
G8  GND  Power
I  Ground pad   
G9  GND  Power
I  Ground pad   
G10
GND  Power
I  Ground pad   
G11
GND  Power
I  Ground pad   
G12
GND  Power
I  Ground pad   
G13
GND  Power
I  Ground pad   

USER MANUAL 
WN7911A-LF  12
4.6  Bill of Materials 
5    Software 
5.1  Driver Support 
  Android v2.2 – v4.0 
  Linux v2.6.29 – v2.6.39 
  Windows CE (check for availability) 

USER MANUAL 
WN7911A-LF  13
6    Specifications 
6.1  Frequency Band:   
  802.11n Radio: 2.4 GHz 
  802.11b/g Radio: 2.4 GHz 
6.2  Transmit Power and Sensitivity:   
  TX Output Power: 
  11b    16 +/- 1 dBm 
  11g    14 +/- 1 dBm 
  11n    13 +/- 1 dBm 
  RX Sensitivity: 
  -86 dBm @ 11 Mbps 
  -72 dBm @ 54 Mbps 
  -68 dBm @ 64-QAM, 20 MHz channel spacing 
6.3  Modulation                                           
  DBPSK @1 Mbps 
  DQPSK @2 Mbps 
  CCK @5.5/11 Mbps 
  BPSK @6/9 Mbps 
  QPSK @12/18 Mbps 
  16-QAM @24 Mbps 
  64-QAM @48/54 Mbps and above, up to 300 Mbps 
6.4  Operation Voltage & Current Consumptions:     
  SDIO_VCC: 2.7V – 5.5V 
  VDD_IO: 1.8V or 3.3V (Operational: 1.62V – 3.63V) 
  TX: 263mA x 3.3V Max 
  RX: 81.58mA x 3.3V Max 
  Power Saving Mode: 1.25mA x 3.3V 
  Deep Sleep Mode: 130uA 

USER MANUAL 
WN7911A-LF  14
6.5  Module Dimension & Tolerance 
  18 +/- 0.1mm (W) X 25 +/- 0.1mm (L) X 2.4 +/- 0.1mm (H) 
6.6  Temperature and Humidity 
  Operating Temperature: 0 ~ 40 
o
C   
  Storage Temperature: -10 ~ 70 
o
C   
  Humidity: 5 ~ 90% and must be non-condensing 
6.7  Regulatory and Certification Compliance   
  FCC & CE Compliance 
The  drawings,  specifications  and  the  data  contain  herein  are  the  exclusive  property  of  Arcadyan 
Technology Corp. issued in strict confidence and shall not, without the prior written permission of 
Arcadyan Technology Corp., be reproduced, copied or used, in parts or as a whole, for any purpose 
whatsoever, except the manufacture of articles for Arcadyan Technology Corp.     
Arcadyan  makes  no  warranties  with  respect  to  the  correctness,  accuracy  or  wholeness  of  this 
specification.    The  information  in  this  document  is  subject  to  change  without  notice.    Arcadyan 
reserves  the  right  to  make  revisions  to  this  document  and  the  product  described  herein  without 
obligation to notify any person or entity of any such changes. 

USER MANUAL 
WN7911A-LF  15
Federal Communication Commission Interference 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. 
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 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  Caution:  Any  changes  or  modifications  not  expressly  approved  by  the  party 
responsible for compliance could void the user's authority to operate this equipment. 
This  transmitter  must  not  be  co-located or  operating  in  conjunction  with  any  other 
antenna or transmitter. 
Radiation Exposure Statement:
This  equipment  complies  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. 

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WN7911A-LF  16
This device is intended only for OEM integrators under the following conditions: 
1) The antenna must be installed such that 20 cm is maintained between the antenna 
and users, and   
2) The transmitter module may not be co-located with any other transmitter or antenna.   
As long as 2 conditions above are met, further transmitter test will not be required. 
However, the OEM integrator is still responsible for testing their end-product for any 
additional compliance requirements required with this module installed 
IMPORTANT NOTE: In the event that these conditions can not be met (for example 
certain laptop configurations or co-location with another transmitter), then the FCC 
authorization is no longer considered valid and the FCC ID can not be used on the final 
product. In these circumstances, the OEM integrator will be responsible for 
re-evaluating the end product (including the transmitter) and obtaining a separate FCC 
authorization. 
End Product Labeling 
This transmitter module is authorized only for use in device where the antenna may be 
installed such that 20 cm may be maintained between the antenna and users. The final 
end product must be labeled in a visible area with the following: “Contains FCC ID: 
RAXWN7911A”. The grantee's FCC ID can be used only when all FCC compliance 
requirements are met. 
Manual Information To the End User 
The OEM integrator has to be aware not to provide information to the end user regarding 
how to install or remove this RF module in the user’s manual of the end product which 
integrates this module. 
The end user manual shall include all required regulatory information/warning as show 
in this manual.