ISL3880IK Intersil Corporation, ISL3880IK Datasheet

ISL3880IK

Manufacturer Part Number

ISL3880IK

Description

Manufacturer

Intersil Corporation

Datasheet

1.ISL3880IK.pdf (1 pages)

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Download datasheet (79Kb)

Wireless LAN Integrated Medium Access

Controller with Baseband Processor

ISL3880 directly interfaces with the Intersil’s ISL3680 Direct

Conversion Transceiver with AGC and synthesizer. Adding

Intersil’s ISL3090 10GHz VCO and Intersil’s ISL3980 Power

Amp completes an end-to-end WLAN Chipset solution for the

2.4GHz 802.11b/g standards. The 802.11Protocol is

implemented in firmware to provide for custom WLAN

solutions.

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.

Orthogonal Frequency Division Multiplexing (OFDM)

modulated with BPSK, QPSK, 16 QAM, or 64 QAM and a

variety of convolutional coding rates provides 8 selectable

data rates. 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.

Built-in flexibility allows the ISL3880 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.

The ISL3880 is housed in a thin plastic BGA package

suitable for CardBus or Mini-PCI circuit card applications.

Simplified Block Diagram

PRELIMINARY

ISL3880

A/D

D/A

The Intersil ISL3880 Wireless LAN

Integrated Media Access Controller

with Baseband Processor is part of

the PRISM GTi™ radio chipset. The

SRAM

Data Sheet

PRISM GTi is a trademark of Intersil Americas Inc., PRISM and design is a trademark of Intersil Americas Inc.

1-888-INTERSIL or 321-724-7143

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Features

• Firmware implements the full IEEE 802.11b/g Wireless

• Internal WEP Engine allows 64 or 128 bit Encryption

• AES Hardware Accelerator

• Start-up-modes allow the PCI configuration registers or

• On-chip SRAM memory

• A low frequency crystal oscillator can maintain time, which

• Firmware controlled antenna diversity

• Data Rates . . . 1,2,5.5,6,9,11,12,18,24,36,48,and 54Mbps

• Modulation . . . . OFDM with BPSK,QPSK,16QAM,64QAM

• Convolutional coding and interleaving on all OFDM rates

• Targeted for OFDM Multipath Delay Spreads from > 800ns

• Targeted for CCK Multipath Delay Spreads > 90ns at

• Direct interface with the ISL3680 Direct Conversion

Applications

• High Data Rate Wireless LAN Systems Targeting the IEEE

• Cardbus32 Wireless LAN Adapters

• Mini-PCI Wireless LAN Cards

• 3V PCI Wireless LAN Adapters

Ordering Information

ISL3880IK

ISL3880IK-TK

LAN MAC protocols

the card bus card information structure to be initialized

from a small external serial EEPROM. This allows

firmware to be downloaded from the host.

allows the high frequency clock source to be powered off

during sleep mode.

for 6 Mbps to > 100ns for 54Mbps

11Mbps, >200 ns at 5.5 Mbps, and >360ns at 1 and

2Mbps

Transceiver

802.11b/g Standards.

NUMBER

PART

March 2003

Intersil (and design) is a registered trademark of Intersil Americas Inc.

RANGE (°C)

-40 to 85

TEMP.

Tape and Reel

256 Lead BGA

PACKAGE

DBPSK, DQPSK, CCK

ISL3880

V256.17x17A

PKG. NO.

FN8054

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