Conexant Systems 37101P-10 2.4GHz WLAN PC Card User Manual ISL37400M EVAL

Conexant Systems Inc. 2.4GHz WLAN PC Card ISL37400M EVAL

Contents

Users Manual

1
TM
8024
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
PRELIMINARY rev. 2
ISL37101P-EVAL
PRISM®3 11 Mbps Wireless Local Area
Network PCMCIA
The Intersil ISL37101P WLAN
PCMCIA (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.
Evaluation kits include a pair of WLAN PCMCIA 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 802.11b 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.
Features
• FCC Certified Under Part 15 to Operate in 2.4GHz ISM
Band
• Support for 11, 5.5, 2 and 1 Megabit Per Second (Mbps)
Data Rates
• Supports the lEEE 802.11b Direct Sequence Specification
• Driver Supports Microsoft Windows®95, 98, 2000, NT,
CE, XP and LINUX®
• Supports Dual Diversity Antennas
• Advanced RAKE Receiver Design with Decision
Feedback Equalizer
• Provides Wireless Data Communications at Full Ethernet
Speed
• Designed to Fully Support PCMCIA Type II Defined
Mechanical and Environmental Stress Conditions
• Intelligent Power Control, Including Low Power Standby
Mode
• Complete Reference Design, the ISL37101P-CD is
available to ensure minimum time-to-market
NOTES:
1. Throughout this document, all references to ‘PCMCIA’, ‘WLAN
adapter’, ‘adapter’, or ‘card’ refer to a card assembly conforming
to the mechanical size specifications of the PCMCIA Type 3A.
2. The range will vary in different operating environments due to
effects such as building construction.
3. At present, PTTU supports Windows 95, 98, NT, 2000 and ME
Packaging
TABLE 1. TYPICAL OPERATING RANGE (Notes 2)
DATA RATE (Mbps) INDOOR RANGE OUTDOOR RANGE
11 120 feet (37 meters) 400 feet (152 meters)
5.5 200 feet (61 meters) 800 feet (243 meters)
2 240 feet (73 meters) 1300 feet (396 meters)
1 300 feet (91 meters) 1750 feet (533 meters)
Ordering Information
PART NUMBER DESCRIPTION CARDS/SET
ISL37101P-EVAL WLAN Evaluation Kit 2
ISL37101P-CD Reference Design N/A
Data Sheet January 2002
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.
2
Functional Overview
The WLAN PCMCIA 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 ISL37101P-EVAL for operation.
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 PCMCIA
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 PCMCIA 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:
• 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 PCMCIA interface / Type 3A form factor
A complete Reference Design for the ISL37101P is available
to ensure minimum time-to-market. This information contains
details for manufacturing a PCMCIA 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.
Related Literature
• Tech Brief TB337, Intersil Corporation, “A Brief Tutorial on
Spread Spectrum and Packet Radio”[1].
• Application Note AN9861, Intersil Corporation,
“ISL37101P-EVAL PRISM 3 11 Mb PCMCIA Wireless
LAN Radio Description” [2].
• Tech Brief TB382, Intersil Corporation, “Measurement of
WLAN Receiver Sensitivity” [3].
• Application Note AN9850, Intersil Corporation,
“Complementary Code Keying Made Simple” [4].
• Application Note AN9829, Intersil Corporation, “Brief
Tutorial on IEEE 802.11 Wireless LANs” [5].
• Application Note AN9820, Intersil Corporation, “A
Condensed Review of Spread Spectrum Techniques for
ISM Band Systems” [6].
The ISL3871 Media Access Controller
(MAC) Protocol Handler
The ISL3871 MAC/Baseband Processor and its firmware are
responsible for running the IEEE 802.11 protocol in the
WLAN card. This section describes the features of IEEE
802.11 that are implemented.
The functions supported by the STA (station) Firmware are:
• CSMA/CA (Carrier Sense Multiple Access with Collision
Avoidance) with Random Backoff
• 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 PCMCIA will be supplied with
information embedded in the Card Information Structure
(CIS) shown in Table 2. It should be noted that in most
systems this information is displayed when the card is
inserted. Customization of the CIS for specific customer
requirements is available upon request, to enable customer
information to be displayed when the card is inserted.
TABLE 2. CIS Embedded Information
FUNCTION NAME CONTENT
Manufacturer Intersil
Product PRISM 3 PCMCIA Adapter
Part Number ISL37101P
Revision String Eval-Rev-A
Revision # 1.0
Manufacturer ID 000B
Device ID 7101
ISL37101P-EVAL
3
IEEE 802.11 International Agreement and
Frequency Assignments
The IEEE 802.11WLAN 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 ISL37101P-EVAL is a prime example.
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.
The available channels of operation in the 2.4GHz to
2.4835GHz and 2.471GHz to 2.497GHz ranges are as follows:
The ISL37101P is shipped with FCC-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 PCMCIA will comply to the standards shown in
Table 4:
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.
FCC Electronic Emission Notices
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
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.
TABLE 3. IEEE 802.11 CHANNELS
CHANNEL
NUMBER CHANNEL
FREQUENCY GEOGRAPHIC
USAGE
1 2412MHz US, CA, ETSI, MKK
2 2417MHz US, CA, ETSI, MKK
3 2422MHz US, CA, ETSI, MKK
4 2427MHz US, CA, ETSI, MKK
5 2432MHz US, CA, ETSI, MKK
6 2437MHz US, CA, ETSI, MKK
7 2442MHz US, CA, ETSI, MKK
8 2447MHz US, CA, ETSI, MKK
9 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
TABLE 4. COMPLIANCE STANDARDS
COUNTRY APPROVAL NOTES
USA FCC part 15,
Sec. 15.247,
Sec. 15.107 and 15.109
Approvalpending
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
ISL37101P-EVAL
4
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.
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.
• 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.
Export restrictions
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
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 (20 centimeters).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.
WARNING! Any changes or modifications of equipment not expressly
approved by Intersil could void the user’s authority to operate the equipment.
Caution: To comply with FCC RF exposure compliance requirements, a
separation distance of at least 20 cm must be maintained between the
antenna of this device and all persons.
3.3V PCMCIA Interface Standard
CAUTION: This assembly is designed to operate with a
supply voltage of 3.3V in laptop computers supporting the
PCMCIA standard.
CAUTION: Do not force engagement of the card in the
PCMCIA slot. It is mechanically designed to prevent
improper insertion.
Permanent damage may occur if operated outside of the
specified operating limits listed in this document.
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,
“ISL37101P-EVAL PRISM 3 11 Mb PCMCIA 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”.
[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”.
Further information can be found in the following:
• Intersil PRISM 3 Chip Set datasheets, web home page,
http://www.intersil.com/design/prism/ser-p30-11mbps.asp
• IEEE 802.11 Standards Project (available from the IEEE,
New York, USA).
TABLE 5. POWER DENSITY CALCULATION
Ch.1 Ch.6 Ch.11
Measured EIRP
(mW)
63.2 51.4 48.0
SpecificAbsorption
Rate
(SAR, mW/cm2)
0.05 0.04 0.04
ISL37101P-EVAL
5
Absolute Maximum Ratings Operating Conditions
Supply Voltage..........................-0.3Vto4.0V(Max)
StorageTemperature(Note4).................. -20
oCto85
oC
TemperatureRange........................ 0
oC≤ TA≤70oC
Supply Voltage Range . .........................3.0Vto3.6V
Caution: These are the absolute maximum ratings for the PCMCIA product. Exceeding these limits could cause permanent damage to the card.
NOTE:
4. All temperature references refer to ambient conditions.
Electrical Specifications Test Conditions: Supply Voltage (VCC) = 3.3V, Ambient Temperature (TA)=25
oC,
Unless Otherwise Specified
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS
CURRENT CONSUMPTION
Initialization Current ICC 145 mA
Quiescent Current ICC 40 mA
Continuous Transmit Mode ICC 280 mA
Continuous Receive Mode ICC Receiving Valid Packets 260 mA
IEEE 802.11 Power Save Mode ICC RX On, 100 msec Beacon Intervals 55 mA
PCMCIA LOGIC LEVELS
Input HIGH Voltage VIH VCC=Max, Min 0.7VCC V
Input LOW Voltage VIL VCC=Min, Max 0.3VCC V
Output HIGH Voltage VOH IOL =2mA,V
CC=Min 2.6 V
Output LOW Voltage VOL IOL =2mA,V
CC=Min 0.05 V
Input Leakage Current IIVCC=Max, Input=0V or VCC 0.1 1.0 µA
PCMCIA LOADING CAPACITANCE
Input Capacitance CIN 510 pF
Output Capacitance COUT 510 pF
RF SYSTEM SPECIFICATIONS
Transmitter Power Output
(excluding 2.5 dBi antenna gain)
Pout 15.5 dBm
Receive Sensitivity RX_S 1 Mbps, 8% PER -91 dBm
2 Mbps, 8% PER -88 dBm
5.5 Mbps, 8% PER -87 dBm
11 Mbps, 8% PER -84 dBm
Multipath Delay Spread Using IEEE
802.11 Naftali Model
TDELAY 1 Mbps, 8% PER >290 ns
2 Mbps, 8% PER >290 ns
5.5 Mbps, 8% PER 166 ns
11 Mbps, 8% PER 90 ns
ISL37101P-EVAL
6
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
Multipath Receive Sensitivity Using JTC
Models (note 5.)
RX_SJTC 1Mbps,8%PER,JTC
Commercial B (150 nsec)
-82 dBm
2Mbps,8%PER,JTC
Commercial B (150 nsec)
-80 dBm
5.5 Mbps, 8% PER, JTC
Commercial B (150 nsec)
-76 dBm
11 Mbps, 8% PER, JTC Office B
(100 nsec)
-67 dBm
Maximum Receive Level RX_MAX PER <8% +3 dBm
Third Order Intercept Point (Input) IIP3_90 -90 dBm input -3 dBm
IIP3_25 -25 dBm input 20 dBm
Carrier Suppression TX_sup Test Mode 42.5 dB
Image Rejection IR PER <8% 60 dB
Adjacent Channel Rejection ACR PER <8% (Note 6) 46 dB
Data Rate (Physical Layer) Rate 1, 2, 5.5
and 11
Mbps
NOTES:
5. For more information, refer to Intersil Application Note AN9895 “Multipath Measurement in Wireless LANs”
6. The adjacent channel measurement is carried out on two channels separated by 25MHz (5 channels).
Electrical Specifications Test Conditions: Supply Voltage (VCC) = 3.3V, Ambient Temperature (TA)=25
oC,
Unless Otherwise Specified (Continued)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS
ISL37101P-EVAL

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