ISL3890IK [RENESAS]
ISL3890IK;
| 型号： | ISL3890IK |
| 厂家： | 
RENESAS TECHNOLOGY CORP |
| 描述： | ISL3890IK |
| 文件： | 总1页 (文件大小：38K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ISL3890
®
Data Sheet
April 2003
FN8047.1
PRELIMINARY
Wireless LAN Integrated Medium Access
Controller with Baseband Processor
Features
• Firmware implements the full IEEE 802.11a/b/g Wireless
LAN MAC protocols
The Intersil ISL3890 Wireless LAN
Integrated Media Access Controller
with Baseband Processor is part of
• Internal WEP Engine allows 64 or 128 bit Encryption
• AES Hardware Accelerator
the PRISM® Duette, Dual Band radio
chipset. The ISL3890 directly interfaces with Intersil’s
ISL3690 Dual Band Direct Conversion transceiver. Adding
Intersil’s ISL3090 10GHz VCO and Intersil’s ISL3990 Dual Band
Power Amp completes an end-to-end WLAN Chipset solution
providing both 5GHz 802.11a and 2.4GHz 802.11b/g standards.
The 802.11 protocol is implemented in firmware supporting
custom WLAN solutions.
• Start-up modes allow the PCI configuration registers or
the Card Bus card information structure to be Initialized
from a small external serial EEPROM. This allows
firmware to be downloaded from the host.
• On-chip SRAM memory
• A low frequency crystal oscillator can maintain time, which
allows the high frequency clock source to be powered off
during sleep mode.
Firmware implements the full IEEE 802.11 Wireless LAN
MAC protocol. It supports BSS and IBSS operation under
DCF, and operation under the optional Point Coordination
Function (PCF). Low level protocol functions such as
RTS/CTS generation and acknowledgment, fragmentation
and de-fragmentation, and automatic beacon monitoring are
handled without host intervention. Active scanning is
performed autonomously once initiated by host command.
Host interface command and status handshakes allow
concurrent operations from multi-threaded I/O drivers.
• Firmware controlled antenna diversity
• Data Rates: 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, &
54Mbps
• Modulation . . OFDM with BPSK, QPSK, 16QAM, 64QAM
DBPSK, DQPSK, CCK
• Convolutional coding and interleaving on all OFDM rates
• Targeted for OFDM Multipath Delay Spreads > 800ns for
6Mbps, and > 100ns for 54Mbps
Orthogonal Frequency Division Multiplexing (OFDM) of 52
sub-carriers modulated with BPSK, QPSK, 16QAM or
64QAM and a variety of convolutional coding rates provides
8 selectable data rates at 2.4GHz and 5GHz. Differential
phase shift keying modulation schemes, DBPSK and
DQPSK with data scrambling capability along with
Complementary Code Keying provide an additional 4
selectable data rates at 2.4GHz.
• Targeted for CCK Multipath Delay Spreads > 90ns at
11Mbps, >200ns at 5.5Mbps and >360ns at 1 and 2Mbps
• Direct interface with the ISL3690 Direct Conversion
transceiver
• High Data Rate Wireless LAN Systems targeting the IEEE
802.11a and b/g standards.
• Cardbus32 Wireless LAN Adapters
• Mini-PCI Wireless LAN Cards
• 3V PCI Wireless LAN Adapters
Built-in flexibility allows the ISL3890 to be configured for a
range of applications. The MAC is based on the ARM 946E
processor core that offers a wide variety of code
development support tools.
Simplified Block Diagram
The ISL3890 is housed in a thin plastic BGA package
suitable for CardBus or Mini-PCI circuit card applications.
A/D
Ordering Information
PART
TEMP.
NUMBER
RANGE (°C)
PACKAGE
PKG. NO.
ISL3890IK
ISL3890IK-TK
-40 to 85
-40 to 85
256 Lead BGA V256.17x17A
Tape and Reel
D/A
SRAM
ISL3890
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003. All Rights Reserved. PRISM® is a registered trademark of Intersil Americas Inc.
PRISM Duette™ and PRISM and design are trademarks of Intersil Americas Inc. All other trademarks mentioned are the property of their respective owner
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