Conexant Systems 37101U 2.4GHz Low power WLAN USB device User Manual ISL37400M EVAL

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Document ID	237244
Application ID	//1qYNaLG4PuTfQgC+6tIw==
Document Description	User manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	12.67kB (158366 bits)
Date Submitted	2002-04-17 00:00:00
Date Available	2002-04-17 00:00:00
Creation Date	2001-06-29 16:06:17
Producing Software	Acrobat Distiller 4.05 for Windows
Document Lastmod	2002-03-20 13:07:27
Document Title	ISL37400M-EVAL
Document Creator	FrameMaker 6.0
Document Author:	Intersil Corporation

ISL37101U-EVAL
TM
Data Sheet
PRELIMINARY
March 2002
PRISM® 3 11 Mbps Wireless Local Area
Network USB
• FCC Certified Under Part 15 to Operate in 2.4GHz ISM Band
Evaluation kits include a pair of WLAN USB cards designed to
Intersil’s PRISM reference design, Microsoft® Windows® Driver,
Local Area Network evaluation software, PRISM Transmitter Test
Utilities (PTTU) software (Note 3) and documentation to get your
evaluation started quickly. It supports the IEEE 802.11 network
specification for DSSS signaling, providing data rates of 1, 2, 5.5
and 11Mbps. Access Points are available from a number of
suppliers, enabling a total wireless network solution Typical
operating ranges are shown in Table 1.
DATA RATE (Mbps)
INDOOR RANGE
OUTDOOR RANGE
11
120 feet (37 meters)
500 feet (152 meters)
5.5
200 feet (61 meters)
800 feet (243 meters)
240 feet (73 meters)
1300 feet (396 meters)
300 feet (91 meters)
1750 feet (533 meters)
Ordering Information
ISL37101U-EVAL
WLAN Evaluation Kit
ISL37101V-CD
Reference Design
• Support for 11, 5.5, 2 and 1 Megabit Per Second (Mbps) Data
Rates
• Supports the lEEE 802.11 Direct Sequence Specification
• Driver Supports Microsoft® Windows® 95, 98, 2000, CE and
LINUX®
• Supports Dual Diversity Antennas
• EVAL Kit Supplied With Left and Right PCB Mounted Dipole
Antennas
• Advanced RAKE Receiver Design with Decision Feedback
Equalizer
• Provides Wireless Data Communications at Full Ethernet Speed
• Mini-USB design .1.57”X2.3” uses miniture USB connector
• Designed To Fully Support the VSB 1.1 Specification
• Intelligent Power Control, Including Low Power Standby Mode
• Complete Reference Design, the ISL37101U-CD is Available to
Ensure Minimum Time-to-Market
TABLE 1. TYPICAL OPERATING RANGE (Notes 2,4)
DESCRIPTION
8033
Features
The Intersil ISL37101U WLAN USB
(Note 1) is a complete wireless high speed
Network Interface Card (NIC) utilizing the
Intersil PRISM® 3 Direct Sequence
Spread Spectrum (DSSS) Wireless Transceiver chip set. It
provides a complete PRISM 3 reference design evaluation
platform of hardware and software to system providers or
integrators requiring wireless data communications capability and
is ideal for integration into computer platforms.
PART NUMBER
File Number
NOTES:
1. Throughout this document, all references to ‘USB’, ‘WLAN adapter’,
‘adapter’, or ‘card’ refer to a card assembly conforming to the USB 1.1
Specification
2. The range will vary in different operating environments due to effects
such as building construction.
3. At present, PTTU supports Windows 95, 98, 2000 and ME
CARDS/SET
4. Data taken using PCB mounted dipole antennas.
NA
PRISM® is a registered trademark of Intersil Americas Inc.
PRISM and design is a trademark of Intersil Americas Inc.
Microsoft® Windows® and Microsoft® Windows NT® are registered trademarks of
Microsoft Corporation. LINUS® is a registered trademark of Linus Torvalds.
Packaging
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil and Design is a trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2001, All Rights Reserved
ISL37101U-EVAL
Functional Overview
The functions supported by the STA (station) Firmware are:
The WLAN USB is designed to operate in the 2.4GHz ISM frequency
band, channels 1 to 11, as specified by the FCC in the USA. The Card
will also operate on channels 12 through 14, where permitted by local
regulatory authorities. Radio equipment must be certified in a country
prior to use. Refer to Table 3 for a list of countries and agencies that
have approved the ISL37101U-EVAL for operation.
• CSMA/CA (Carrier Sense Multiple Access with Collision
Avoidance) with Random Backoff
The Intersil PRISM Chip Set allows for high level integration for
reduced size, increased throughput, improved radio performance
and faster time to market. The WLAN USB implements Direct
Sequence Spread Spectrum DSSS technology providing superior
noise and signal jamming immunity including less severe impact
from unintentional radiators such as microwave ovens. The user
can connect the USB in an ad-hoc peer to peer networking scheme,
allowing for instant network setup in any office environment. By
using an access point, the wireless LAN can be set up to allow for
a greater number of users to interconnect, and to increase the
coverage area. With a portal (i.e., Access Point), the wireless LAN
can be easily connected into an existing wired LAN, allowing for
easy expansion of the service.
Compared to the PRISM II chip set, the PRISM 3 generation
offers:
• Low loss front end designed for maximum range
• Higher level of chip integration and less peripheral components
to reduce material costs (3-chip solution)
• Support of optional IEEE 802.11 Short Preamble for
significantly increased data throughput with room for additional
user defined functions
• Has a mini-USB interface
A complete Reference Design for the ISL37101U is available to
ensure minimum time-to-market. This information contains details
for manufacturing a USB WLAN assembly, including Gerber PC
board files, an accurate Bill of Material with component sourcing
and complete mechanical drawings and a complete Radio
Description and test plan.
The ISL3871 Media Access Controller
(MAC) Protocol Handler
The ISL3871 MAC/Baseband Processor and its firmware are
responsiblefor running the IEEE 802.11 protocol in the WLAN
card. This section describes the features of IEEE 802.11 that are
implemented.
• WEP Security
• Short/Long Preamble with multirate
• RTS/CTS Handshake (Ready To Send/Clear To Send) and NAV
Management (Network Allocation Vector)
• MAC Level Acknowledgments (Media Access Control)
• Re-Transmission of Unacknowledged Frames
• Duplicate Detection and Rejection
• Broadcast and Multicast Frames
• Fragmentation and Re-Assembly
• Power Management (Planned)
• Timestamp Synchronization
• DCF (Distributed Coordination Function)
• PCF (Point Coordination Function)
• Beacon Generation in an Ad-Hoc Network
• Probe Response Generation in an Ad-Hoc Network
Card Information Structure
The standard Intersil WLAN USB will be supplied with
information embedded in the Plug and Play (PnP) shown in Table
2. It should be noted that in most systems this information is
displayed when the card is inserted. Customization of the PnP for
specific customer requirements is available upon request, to enable
customer information to be displayed when the card is inserted.
TABLE 2.
Plug Record
Contents
Usage
Default
401
Vendor/Product
ID
09AA XXXX
407
Bus/Self Powered Bus Powered
(value 8000)
ISL37101U-EVAL
IEEE 802.11 International Agreement and
Frequency Assignments
The IEEE 802 LAN committee has forged an international
agreement providing for wireless data communication standards
for the frequency range of 2.4GHz to 2.4835GHz, as allocated by
the FCC in the USA, and in the 2.471GHz to 2.497GHz
frequency range, as specified by the regulatory authority in
Japan. These standards are designed to focus the industry to
develop highly integrated, low cost, interoperable WLAN
equipment, of which the ISL37101U-EVAL is a prime example.
The ISL37101U is shipped with USA-compliant firmware. In
order to ensure regulatory-compliant channel usage in a particular
country, special geographic-specific firmware is available for
customer production assemblies which restricts channel usage.
Examples include ETSI-compliant firmware, etc. Since the end
user does not have the ability to alter this firmware, regulatory
compliance is ensured.
Agency and Regulatory Body Approvals
The WLAN USB will comply to the standards shown in Table 4:
TABLE 4. COMPLIANCE STANDARDS
In the U.S., there are 11 channels specified by the FCC in the
2.412GHz to 2.462GHz range. In Japan, channel 14 at 2.484GHz
is authorized under ARIB STD-33 and channels 1-13 are
authorized under ARIB STD-T66. The ETSl (European)
regulatory body conforms to the USA (FCC) channel assignments
with the exception that channels 12 and 13 are also allowed. Some
countries in Europe, notably France and Spain have unique
channel restrictions.
Although information contained in Table 3 is deemed to be
accurate, local regulatory authorities should be consulted before
using such equipment.
COUNTRY
NOTES
USA
FCC part 15,
Sec. 15.247,
Sec. 15.107 and 15.109
Approval pending
for Intentional
Radiators &
Computer
Peripheral
Canada
ICAN RSS-210
Designed for
compliance
Europe
EN 60950
EN 301 489-1 V1.2.1 (2000-08)
EN 301 489-17 V1.1.1 (2000-09)
EN 300 328 Part 1 V1.2.2 (2000-07)
EN 300 328 Part 2 V1.1.1 (2000-07)
Designed for
compliance
Japan
ARIB STD-T66
ARIB STD-33
Designed for
compliance
The available channels of operation in the 2.4GHz to 2.4835GHz and
2.471GHz to 2.497GHz ranges are as follows:
TABLE 3. IEEE 802.11 CHANNELS
APPROVAL
CHANNEL
NUMBER
CHANNEL
FREQUENCY
GEOGRAPHIC
USAGE
2412MHz
US, CA, ETSI, MKK
2417MHz
US, CA, ETSI, MKK
2422MHz
US, CA, ETSI, MKK
2427MHz
US, CA, ETSI, MKK
FCC Electronic Emission Notices
2432MHz
US, CA, ETSI, MKK
2437MHz
US, CA, ETSI, MKK
This device complies with part 15 of the FCC Rules. Operation is
subject to the following two conditions:
2442MHz
US, CA, ETSI, MKK
2447MHz
US, CA, ETSI, MKK
2452MHz
US, CA, ETSI, MKK
10
2457MHz
US, CA, ETSI, MKK, FR, SP
11
2462MHz
US, CA, ETSI, MKK, FR, SP
12
2467MHz
ETSI, FR, MKK
13
2472MHz
ETSI, FR, MKK
14
2484MHz
MKK
KEY:
US = United States, CA = Canada, ETSI = European countries
(except France and Spain),
FR = France, SP = Spain, MKK = Japan
FCC Information to User
This product does not contain any user serviceable components
and is to be used with approved antennas only. Any product
changes or modifications will invalidate all applicable regulatory
certifications and approvals.
1. This device may not cause harmful interference
2. This device must accept any interference received, including
interference that may cause undesired operation.
FCC Radio Frequency Interference statement
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 when the equipment is operated in a
commercial environment. 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.
Operation of this equipment in a residential area may cause
harmful interference in which case the user will be required to
correct the interference at his own expense.
ISL37101U-EVAL
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.
[5] AN9829 Application Note, Intersil Corporation, “Brief
Tutorial on IEEE 802.11 Wireless LANs”.
[6] AN9820 Application Note, Intersil Corporation, “A
Condensed Review of Spread Spectrum Techniques for ISM
Band Systems”.
[7] AN9665 Application Note, Intersil Corporation, “PRISM
Power Management Modes”.
• Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
Further information can be found in the following:
• Consult the dealer or an experienced radio/TV technician for
help.
• Intersil PRISM 3 Chip Set datasheets, web home page,
http://www.intersil.com/design/prism/ser-p30-11mbps.asp
Export restrictions
• IEEE 802.11 Standards Project (available from the IEEE, New
York, USA).
This product or software contains encryption code which may not
be exported or transferred from the US or Canada without an
approved US Department of Commerce export license.
FCC Guidelines for Human Exposure
CAUTION: To comply with FCC RF exposure
compliance, a separation distance of at least 20
cm (8 inches) must be maintained between the
antenna of this device and all persons
The EIRP was measured for the lower, middle and highest
frequencies used by the transmitter. The results in Table 5 are
based on a safe distance between antenna and operator of 8
inches.The equipment therefore fulfills the requirements on
power density for general population / uncontrolled exposure of
1.0 mW/cm2 and therefore complies with the requirements of
FCC part 15.247 (b) (4) and FCC OET Bulletin 65 including
supplements A, B and C.
TABLE 5. POWER DENSITY CALCULATION
Ch.1
Ch.6
Ch.11
Measured EIRP
(mW)
97.96
95.72
91.42
Calculated Power
Density (mW/cm2)
0.08
0.08
0.07
WARNING! Any changes or modifications of equipment not expressly approved by
Intersil could void the user’s authority to operate the equipment.
References
For Intersil documents available on the internet, see web site
http://www.intersil.com/
[1] TB337 Tech Brief, Intersil Corporation, “A Brief Tutorial on
Spread Spectrum and Packet Radio”.
[2] AN9861 Application Note, Intersil Corporation, “ISL37101UEVAL PRISM 3 11 Mb USB Wireless LAN Radio
Description”
[3] TB382 Tech Brief, Intersil Corporation, “Measurement of
WLAN Receiver Sensitivity”.
[4] AN9850 Application Note, Intersil Corporation,
“Complementary Code Keying Made Simple”.
ISL37101U-EVAL
Absolute Maximum Ratings
Operating Conditions
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 5.5V (Max)
Storage Temperature (Note 5). . . . . . . . . . . . . . . . . . . . . . . . -20oC to 85oC
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC £ TA £ 70oC
Supply Voltage Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 5.5V
Caution: These are the absolute maximum ratings for the USB product. Exceeding these limits could cause permanent damage to the card.
NOTE:
5. All temperature references refer to ambient conditions.
Test Conditions: Supply Voltage (VCC) = 5.0V, Ambient Temperature (TA) = 25oC,
Unless Otherwise Specified
Electrical Specifications
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
CURRENT CONSUMPTION
Initializatoin Current
ICC
52
55
mA
Average Current
(2% TX; 8% RX; 90% Standby)
ICC
98
mA
Continuous Transmit Mode
ICC
235
280
mA
Continuous Receive Mode
ICC
237
260
mA
IEEE 802.11 Power Save Mode
ICC
85
mA
USB suspend current
ICC
3.0
4.0
mA
Receiving Valid Packets
miniUSB LOGIC LEVELS
Required at target connector input
Differential “1”
(D+) - (D-) > 200mV and D+ > Vih
3.3
Differential “0”
(D-) - (D+) > 200 mV and D- > Vih
3.3
RF SYSTEM SPECIFICATIONS
Transmitter Power Output (std Filter)
Pout
EIRP - dipole antenna
mW
Receive Sensitivity (J2)
RX_S
Multipath Delay Spread
TDELAY
using Naptali Model
Multipath Receive Sensitivity
RX_SJTC
using JTC Model
Maximum Receive Level
16.5
180
1Mbps, 8% PER
-93
dBm
mW
dBm
2Mbps, 8% PER
-91
dBm
5.5Mbps, 8% PER
-90
dBm
11Mbps, 8% PER
-85
dBm
2Mbps, 8% PER
>290
nSec
5.5Mbps, 8% PER
200
nSec
11Mbps, 8% PER
105
nSec
1Mbps, 8% PER, Office C
-83
dBm
2Mbps, 8% PER,Commercial B
-81
dBm
5.5Mbps, 8% PER, Commercial B
-61
dBm
11Mbps, 8% PER, Commercial B
-77
dBm
PER <8%
-3
+3
dBm
IIP3_90
-90 dBm input
-5
dBm
IIP3_25
-25 dBm input
25
dBm
RX_MAX
Third Order Intercept Point (Input)
ISL37101U-EVAL
Test Conditions: Supply Voltage (VCC) = 5.0V, Ambient Temperature (TA) = 25oC,
Unless Otherwise Specified (Continued)
Electrical Specifications
PARAMETER
SYMBOL
Carrier Supression
TEST CONDITIONS
MIN
TYP
MAX
UNITS
TX_sup
Test Mode
-41
dB
Image Rejection
IR
PER <8%
NA ZIF
dB
IF Rejection
IFR
PER <8%
NA ZIF
dB
Adjacent Channel Rejection
ACR
PER <8% (Note 7)
33
dB
Data Rate (Physical Layer)
Rate
1, 2, 5.5
and 11
Mbps
NOTES:
6. Refer to Application Note “PRISM Power Management Modes” AN9665 [3].
7. The adjacent channel measurement is carried out on two channels separated by 25MHz (5 channels).
All Intersil products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice.
Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable.
However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its
use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
Sales Office Headquarters
NORTH AMERICA
Intersil Corporation
7585 Irvine Center Drive
Suite 100
Irvine, CA 92618
TEL: (949) 341-7000
FAX: (949) 341-7123
Intersil Corporation
2401 Palm Bay Rd.
Palm Bay, FL 32905
TEL: (321) 724-7000
FAX: (321) 724-7946
EUROPE
Intersil Europe Sarl
Ave. C - F Ramuz 43
CH-1009 Pully
Switzerland
TEL: +41 21 7293637
FAX: +41 21 7293684
ASIA
Intersil Corporation
Unit 1804 18/F Guangdong Water Building
83 Austin Road
TST, Kowloon Hong Kong
TEL: +852 2723 6339
FAX: +852 2730 1433
ISL37100P-EVAL

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File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.2
Linearized                      : No
Producer                        : Acrobat Distiller 4.05 for Windows
Create Date                     : 2001:06:29 16:06:17
Creator                         : FrameMaker 6.0
Keywords                        : prism 2.5, minipci, datasheet, isl37400m, wireless, lan, wlan
Subject                         : PRISM 2.5 11Mbps Wireless Local Area Network miniPCI
Author                          : Intersil Corporation
Title                           : ISL37400M-EVAL
Modify Date                     : 2002:03:20 13:07:27+01:00
Page Count                      : 7

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