®
ISL3865A
Data Sheet
May 2003
FN8069
PRELIMINARY
Wireless LAN 802.11a/b/g OFDM / CCK
DSSS Baseband Processor
The Intersil ISL3865A OFDM / CCK
Direct Sequence Spread Spectrum
(DSSS) baseband processor contains
all the functions necessary for both a 5
GHz 802.11a and 2.4GHzb/g baseband transceiver.
The ISL3865A has on-board A/Ds and D/A for analog I and Q
inputs and outputs, for interfacing with ISL3680, ISL3690 or
ISL3686X Direct Conversion Transceivers. Built-in flexibility
allows the ISL3865A to be configured through a general purpose
control bus, for a range of applications. Both the receive and
transmit paths utilize digital AGC control to obtain maximum
performance in the analog portions of the transceiver. The
ISL3865A is housed in a 14x14 mm thin plastic Ball Grid Array
suitable for PC Card applications.
Features
• Complete OFDM/DSSS Baseband Processor
• RAKE Receiver with Decision Feedback Equalizer
• Processing Gain. . . . . . . . . . . . . . . . . . . . .FCC Compliant
• Programmble Data Rates
• Small Package . . . . . . . . . . . . . . . . . . 14 x 14mm CABGA
• 1.8V core, 3.3V I/O, 40MSPS Operation
• 16-bit Parallel Meduim Access Controller (MAC) Interface
• Modulation Methods. . . . . OFDM, DBPSK, DQPSK, CCK
• On-Chip A/D and D/A Converters for I/Q Data, AGC, and
Adaptive Power Control
• Supports Short Preamble
• Low cost ZIF architecture
Applications
• Wireless LAN Systems Targeting IEEE802.11a/b/g
standards
Ordering Information
PART NUMBER
ISL3865AIK
ISL3865AIK-TK
TEMP.
RANGE (
o
C)
-40 to 85
-40 to 85
PACKAGE
192 Ld BGA
Tape and Reel
PKG. DWG. #
V192.14x14
• Wireless LAN access point and bridge products
• Notebook Computer
• Wireless Digital Audio, Video, Multimedia
• Spread Spectrum WLAN RF Modems
• TDMA or CSMA Packet Protocol Radios
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
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Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003. All Rights Reserved.
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