Samsung Electronics Co SWL-2900U WLAN Module User Manual
Samsung Electronics Co Ltd WLAN Module
User Manual
SWL-2900U DatasheetUser Guide
REV .9 Samsung Electro-Mechanics Proprietary 1/12
SWL-2900U User Guide
REV 0.9
Samsung Electro-Mechanics
2007-12-26
Summary
This document describes the general User-Guide of SWL-2900U IEEE 802.11b/g Wireless
LAN USB 2.0 module.
© 2007 Samsung Electro-Mechanics. All rights reserved
The names of actual companies and products mentioned
herein may be the trademarks of their respective owners.
This document is subject to change without notice
No part of this document may be reproduced, stored in a
retrieval system, or transmitted in any form or by any
means without the express written consent of Samsung
Electro-Mechanics.
SWL-2900U Datasheet
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Revision History
Revision Date Descriptions
0.9 2007-12-26 Created
SWL-2900U Datasheet
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Table of Contents
REVISION HISTORY.................................................................................................................. 2
1 GENERAL DESCRIPTION..................................................................................................... 4
1.1 FUNCTIONAL DESCRIPTION..........................................................................................................4
1.2 FEATURES...............................................................................................................................4
1.3 APPLICATIONS..........................................................................................................................5
1.4 BLOCK DIAGRAM.......................................................................................................................5
1.5 DIMENSION AND PIN ASSIGNMENTS...............................................................................................6
2 PRIORITY MANAGEMENT................................................................................................... 8
2.1 MAXIMUM POWER SUPPLY RATING ................................................................................................8
2.2 CONNECTION TO HOST .............................................................................................................8
2.3 GROUND CONNECTION...............................................................................................................8
2.4 STORAGE CONDITION ................................................................................................................8
2.5 CON2 PAD DISCOLORATION........................................................................................................8
3 ELECTRICAL CHARACTERISTICS........................................................................................ 9
3.1 ABSOLUTE MAXIMUM RATINGS .....................................................................................................9
3.2 CURRENT CONSUMPTION ............................................................................................................9
4 RF SPECIFICATION .......................................................................................................... 10
4.1 SUPPORTABLE MODULATION SCHEME & DATA RATES.......................................................................10
4.2 11B RF SPECIFICATION............................................................................................................10
4.3 11G RF SPECIFICATION............................................................................................................11
4.4 CHANNEL & CENTER FREQUENCY ................................................................................................11
4.5 ANTENNA SPECIFICATIONS......................................................................................................12
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1 General Description
1.1 Functional Description
SWL-2900U is the low power USB 2.0 module for 802.11b/g wireless LAN (WLAN) aimed at embedded
applications. SWL-2900U is the USB 2.0 module that adopts a single-chip wireless local area network
(WLAN) medium-access controller (MAC) spread-spectrum baseband processor and 2.4 GHz RF radio.
SWL-2900U supports IEEE 802.11b, and 802.11g standards. Data rates up to 54 Mbps can be provided in
802.11g mode of operation.
The main IC of SWL-2900U includes an 80MHz ARM7 core, 384 KB of on-chip SRAM, and 80 KB of on-
chip ROM. SWL-2900U is able to host the entire WLAN driver and TCP/IP stack on-chip. This minimizes
development time, cost, and burden on the host processor resources making SWL-2900U an ideal WLAN
solution for nomadic application.
SWL-2900U provides crucial power management functionality and requires only a single 5.0 V supply
voltage.
Figure 1-1 SWL-2900U Picture
1.2 Features
z Wi-Fi compliant
z Security: WEP, WPA-PSK, WPA2-PSK, WMM, WMM-PS, TKIP, and AES hardware acceleration
z Host interface: USB 2.0
z Low power consumption
z Single 5.0 V external supply voltage required
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1.3 Applications
z Network printer servers with WLAN connectivity
z Set-top boxes that need WLAN connectivity
1.4 Block Diagram
PA
SEEPROM
TCXO
USB
Balun
Balun SPDT Ant 1
Ant 2
SPDT
LDO
RX/TX ANT_SEL
5V
Power
Mngr
5V
3.3V
RX/TX
ANT_SEL
2.5V
1.2V
3.3V
2.5V
BCM4326
MAC/PHY
BB/RF
DC-DC/LDO
Figure 1-2 SWL-2900U Block Diagram
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1.5 Dimension and Pin Assignments
1.5.1 Mechanical Dimension
W X L X H = 45mm X 65mm X 5.1mm
Figure 1-1 SWL-2900U Mechanical Dimension
Figure 1-2 SWL-2900U
65mm
45mm
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1.5.2 HOST Interface
USB Interface : Molex 53261-0671, 6pin, Right Angle, SMT
* SIZE : 5.2 x 12.65 x 3.4 mm
Figure 1-3 SWL-2900U CON1 Connector PIN Assignment
Table 1-1 CON1 PIN Description
No. Pin Name Description
1 Shell Drain wire, to GND
2 VBUS RED, 5V from HOST
3 D- White, USB data Negative
4 D+ Green, USB data Positive
5 GND Black, signal ground
6 Shell Drain wire, to GND
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2 Priority Management
2.1 Maximum Power Supply Rating
The supply Voltage of SWL-2900U is 5V , do follow the Maximum Rating in 3.1.
2.2 Connection to HOST
SWL-2900U will work properly only if connecting to USB2.0 Interface as defined at 1.5.2 .
2.3 Ground Connection
SWL-2900U does not need special ground, but uses the ground wire in HOST Interface.
2.4 Storage Condition
It needs proper condition for protecting the rust.
- Temperature : 0 ~ +50 °C
- Humidity : lower level recommended , 25% ~ 65%RH
- Max Storage Limit : Within 6 Month from Production
2.5 CON2 Pad Discoloration
The CON2 pad is open(not soldered) from the request of Customer, so USB Plug A type connector can be
attached.
But the pad can be discoloured from the exposure to air.
The surface treatment type of SWL-2900U is OSP(Organic Solderability Preservative), so Scratching can
make discoloration. It required the special care in handling.
The Discoloured product is not inferior goods, if it works as WLAN adaptor.
- The discoloration Point : 2 points of CON2 Top Side & 6 points on Bottom Side
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3 Electrical Characteristics
3.1 Absolute Maximum Ratings
Symbol Parameter Conditions Min. Nom. Max. Unit
DC supply DC supply voltage from HOST +4.85 +5.0 +5.25 V
DC for I/O USB2.0 Compliant - - - -
AIR 12K V
ESD* Electro-static discharge voltage
IEC1000-4~2
POINT: CON1, CON12 Contact
8K V
TS Storage temperature -20 - +85 °C
TO Operating temperature 0 - +60 °C
* For more detail, see the Reliability Test Report.
3.2 Current Consumption
Symbol Parameter Min. Nom. Max. Unit
11b (Tx pwr: 17 dBm) 260 <500 mA
Current
consumption * Transmit current value 11g (Tx pwr: 13 dBm) 204 <500 mA
* It can be different to test condition.
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4 RF Specification
All measurements are made under nominal power supply and room temperature 25 °C unless specified.
RF specification of SWL-2900U was defined according to 802.11b/g mandatory
4.1 Supportable Modulation Scheme & Data Rates
Modulation Coding rate Data rates
(Mbps)
Remark
(20MHz Channel spacing
for OFDM)
BPSK 1/2 6 mandatory
BPSK 3/4 9 optional
QPSK 1/2 12 mandatory
QPSK 3/4 18 optional
16-QAM 1/2 24 mandatory
16-QAM 3/4 36 optional
64-QAM 1/2 48 optional
802.11g
OFDM
64-QAM 3/4 54 optional
DBPSK NA 1
DQPSK NA 2
NA 5.5
802.11b CCK NA 11
-
4.2 11b RF Specification
Data Rate
/ TRx Item IEEE
802.11b/g Min Nom Max Unit
11Mbps/Tx Power Detect
Gap - - 1.5 dBm
11Mbps/Tx Power 18.4.7.1 15 17 20 dBm
11Mbps/Tx Frequency Error
Rate 18.4.7.4 -25 +25 ppm
11Mbps/Tx EVM 18.4.7.8 13 35 %
11Mbps/Tx Spectrum Mask
1st Side Lobe 18.4.7.3 40 30 dBr
11Mbps/Tx Spectrum Mask
2nd Side Lobe 18.4.7.3 60 50 dBr
11Mbps/Rx Minimum input
signal level 18.4.8.1 -85 -84 -76 dBm
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4.3 11g RF Specification
Data Rate
/ TRx Item IEEE
802.11b/g Min Nom Max Unit
48Mbps/Tx Power Detect
Gap - - 1.5 dBm
48Mbps/Tx Power 19.4.7.1 10 13 15 dBm
48Mbps/Tx Frequency Error
Rate 19.4.7.2 -25 0 +25 ppm
48Mbps/Tx EVM 17.3.2.2
17.3.8~17.3.9 -27 -22 dB
48Mbps/Tx Spectrum Mask
1st Side Lobe 19.5.4 40 20 dBr
48Mbps/Tx Spectrum Mask
2nd Side Lobe 19.5.4 60 28 dBr
48Mbps/Tx Spectrum Mask
3rd Side Lobe 19.5.4 60 40 dBr
48Mbps/Rx Minimum input
signal level 19.5.1 -76 -74 -65 dBm
4.4 Channel & Center Frequency
Channel No Center Frequency
[Mbps] FCC, IC ETSI
Korea
1 2412 O O
2 2417 O O
3 2422 O O
4 2427 O O
5 2432 O O
6 2437 O O
7 2442 O O
8 2447 O O
9 2452 O O
10 2457 O O
11 2462 O O
12 2467 - O
13 2472 - O
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4.5 ANTENNA Specifications
2 Fractal Antennas on PCB that support Diversity
ANTENNA Polarization AVG Max. Unit
Horizontal -3.3 2.6 dBi
ANT1 Vertical - - dBi
Horizontal -2.5 1.8 dBi
ANT2 Vertical - - dBi
All measurement is done with bare PCB.
It can be different to ANTENNA direction & measurement set-up.
For better performance, the antennas should be apart more than 5mm from other material.
A
NT1
A
NT2
A1
A2
V
H
Regulatory Information
FCC Compliance
Ì 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.
Ì Caution
Any changes or modifications NOT explicitly APPROVED by Samsung Electronics Co.,
Ltd. could cause the SWL-2900U module to cease to comply with FCC rules part 15, and
thus void the user's authority to operate the equipment.
Ì RF-exposure statement
These modular transmitters, SWL-2900U, comply with FCC radiation exposure limits set
forth for an uncontrolled environment. The SWL-2900U should be installed and operated
with minimum distance 20cm between the antenna and the body of the user or nearby
persons.
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 users manual of the end product which
integrate this module.
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 the 2 conditions above are met, further transmitter testing 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 (for example,
digital device emissions, PC peripheral requirements, etc.).
IMPORTANT NOTE: In the event that these conditions cannot 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 cannot 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.
Ì Antenna
These modular transmitters are for OEM integrations only. The end-user product will be
installed in such a manner that only the authorized antennas are used.
Ì Label and manual requirements for the End Product
For an end product using the SWL-2900U there must be a label containing, at least, the
following information:
FCC ID for model SWL-2900U
The label must be affixed on an exterior surface of the end product such that it will be
visible upon inspection in compliance with the modular approval guidelines developed by
the FCC.
Where the SWL-2900U will be installed in final products larger than 8cm x 10cm following
statements has to be placed ONTO the device.
"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."
In case where the final product will be installed in locations where the end-consumer is not
able to see the FCC ID and/or this statement, the FCC ID and the statement shall also be
included in the end-product manual.
The users manual for end users must include the following information in a prominent
location "IMPORTANT NOTE: To comply with FCC RF exposure compliance requirements, the
antenna used for this transmitter must be installed to provide a separation distance of at least 20
cm from all persons and must not be co-located or operating in conjunction with any other antenna
or transmitter."
This device contains
FCC ID: A3LSWL-2900U
EU Compliance
Ì Regulatory compliance of the SWL-2900U
The SWL-2900U are made for OEM integrations only. The European regulations applying
to the SWL-2900U is the R&TTE Directive 1999/5/EC.
SWL-2900U meets the following requirements of the R&TTE Directive.
R&TTE Directive
article Test category Harmonized standard
Article 3.1(a) Protection of health and safety EN 60950-1, EN 50385
Article 3.1(b) EMC EN 301 489-1/-17
Article 3.2 Effective use of the spectrum EN 300 328
The conformity assessment for the SWL-2900U were completed in accordance with the
R&TTE Directive Annex IV procedures, and the EC Declaration of Conformity is attached
to this manual.
Ì Cautions regarding regulatory compliance when integrating the SWL-2900U
The person integrating the SWL-2900U becomes the manufacturer of the final product
and is therefore responsible for demonstrating compliance of the product with the
essential requirements of the R&TTE Directive.
In all cases assessment of the final product must be made against the Essential
requirements of the R&TTE Directive Article 3.1(a) and (b), safety and EMC respectively,
and any relevant Article 3.3 requirements
This device is intended only for OEM integrators under the following conditions:
1. This appliance and its antenna must not be co-located or operating in conjunction with
any other antenna or transmitter.
2. A minimum separation distance of 20 cm must be maintained between the antenna and
the person for this appliance to satisfy the RF exposure requirements of the Council
recommendation 1999/519/EC of 12 July 1999.
As long as the 2 conditions above are met, no further evaluation under Article 3.2 of the
R&TTE Directive and do not require further involvement of an R&TTE Directive Notified
Body for the final product. In all other cases, or if the manufacturer of the final product is in
doubt then the equipment integrating the radio module must be assessed against Article
3.2 of the R&TTE Directive.
Please note that this product, SWL-2900U, uses radio frequency bands not harmonized
throughout the Community. This product is classified as Class 2 radio equipment for which
some Member States apply restrictions on placing on the market and in use. Any parties
putting Class 2 radio equipment on the market must notify the relevant national spectrum
management authority of their intention, and the radio equipment must be given a Class
Identifier (alert symbol).
Ì Antenna
This product, SWL-2900U, is for OEM integrations only. The end-user product will be
installed in such a manner that only the authorized antennas are used.
Ì Enclosure
This product, SWL-2900U, is made for integrating in another final product. For this reason,
there are some parts of the final product on which the SWL-2900U depends for regulatory
compliance regarding EMC and safety. The SWL-2900U is mounted on the circuit board of
the final product, and must be contained inside the case of the final product. Integrated
the SWL-2900U in the final product so that its surfaces are not in contact with the outside.
Ì Documentation
In the documentation for the conformity assessment of the final product, state clearly that
the SWL-2900U is integrated in the system.
Ì Conformity Assessment of the Products integrating the SWL-2900U
The following is a supplementary explanation of conformity assessments for final products
integrating the radio modules such as the SWL-2900U, that have passed conformity
assessments in accordance with the R&TTE Directive.
The procedures for conformity assessment in accordance with the R&TTE Directive are
the responsibility of the manufacturer of the final product. With final products integrating
radio modules, the person who integrates the module in the system becomes the
manufacturer of the final product, and it is their responsibility to certify that the
requirements of the R&TTE Directive and met.
Ì Exemption from conformity assessment
However, if radio modules that meet the requirements of the R&TTE Directive and that
have passed the conformity assessment are integrated in a final product that follows the
cautions concerning integrating radio modules, they are exempted from the conformity
assessment for R&TTE Directive Article 3.2 (efficient use of the radio spectrum). For
details, refer to the following Guidance and ETSI Technical Report from the R&TTE
Compliance Association, and check whether your case applies.
Organization R&TTE Compliance Association Document No. TGN 01 Rev 3
Document title Technical Guidance Note on Requirement for a Final Product that
Integrates an R&TTE Directive Assessed Module
URL You can download the guidance from the download area of R&TTE
Compliance association. http://www.rtteca.com
Organization ETSI (Technical report) Document No. ETSI TR 102 070-2
Document title Electromagnetic compatibility and Radio spectrum Matters (ERM);
Guide to the application of harmonized standards to multi-radio and
combined radio and non-radio equipment; Part 2: Effective use of radio
frequency spectrum
URL You can download the guidance from the ETSI web site by entering
TR102 070-2 in the search engine. Before downloading, you will be
requested to register.
http://www.rtteca.com
Ì Conformity assessment procedures for final products exempted from R&TTE Directive Article 3.2
In every case, the manufacturer of a final product must follow the procedures for
conformity assessment of the final product with the requirements of R&TTE Directive
Article 3.1(a) and (b), for safety and EMC. The conformity assessment for Article 3.2 is
carried out in accordance with the following:
1) Attach the EN 300 328 test report of the assessed radio module and the EC Declaration
of Conformity to the conformity assessment of the final product (The Declaration of
Conformity is attached to the manual).
2) Specify on the conformity assessment of the end product that the assessed radio
module was integrated in the system without any changes, in accordance with the
installation directions of the manufacturer.
Ì Notification of the final product
Please note that this product, SWL-2900U, uses radio frequency bands not harmonized
throughout the Community. The notification required by R&TTE Directive Article 6(4) is
necessary. It is the responsibility of the manufacturer of the final product to notify the
relevant national spectrum management authority of the intention to place the final
product on the market.
Ì CE marking
It is necessary to attach the CE mark to the final product to indicate that it conforms with
all the directives that apply to the final product. It must be given a Class Identifier (alert
symbol) in addition to the CE mark.
Ì Exemption clause
Samsung Electronics Co., Ltd. does not guarantee the accuracy of the information above.
In case of doubt or uncertainty, we recommend that you check with the authorities or
official certification organizations of the relevant countries.