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Product Bulletin
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Atheros XSPAN® Technology Overview

Atheros offers the industry's most innovative and complete portfolio of 802.11n wireless LAN chip solutions. The third-generation of Atheros’ XSPAN 802.11n technology, consisting of the AR9280 and AR9281, builds
upon the company’s second-generation XSPAN products – with enhanced performance, higher integration, smaller form factors and lower overall cost – to meet the needs of the rapidly growing 802.11n market.
Like the second-generation XSPAN products, the new third-generation solutions are compliant with the latest IEEE 802.11n specification.

Atheros third-generation XSPAN chips feature:

Leading Integration that delivers end-product cost and form factors to drive broad market adoption of 802.11n products;

Single- and Dual-Band, and Multiple MIMO Configurations that enable OEMs to balance product price and performance to satisfy application and market segment requirements;

Rich Media & Peripheral Interfaces that address the requirements for advanced media networking applications and allow end-product feature differentiation;

Easy Network Setup via Atheros’ JumpStart for Wireless, the company’s simple network configuration software which supports both the PIN and push-button setup methods supporting the Wi-Fi® Protected Setup™ specification.

Product Overview

Introducing the Atheros AR9281, the single-chip, single-band 2.4 GHz solution for PCIe in XSPAN's third generation of products. The AR9281 is the most integrated and most compact 802.11n solution for single-band PCIe on the market, featuring a half-Mini Card form factor that is 30% smaller than the nearest competitive 11n. This breakthrough product will drive the transition of legacy Wi-Fi to 802.11n in the mainstreampriced PC market. It offers the optimal balance of performance, power and price with its single-band, 1x2 MIMO configuration which features downshift to 1x1 MIMO with Dynamic MIMO Power Save. The AR9281 follows in Atheros' drive towards integration – and is the eighth singlechip client solution to be introduced.

Solution Highlights

• Single-chip, 802.11n compliant wireless LAN client solution with integrated MAC, baseband and 2.4 GHz radios
• Based on third-generation 802.11n compliant technology
• Support for 1x2 MIMO
• Conserves power with 1x1 downshift using Dynamic MIMO Power Save
• Enables PHY rate of up to 300 Mbps on downlink
• Compliant with IEEE 802.11b, 802.11g, 802.11d, 802.11e, 802.11i, and 802.11n
• Lead-free RoHS compliant

AR9281 Specifications

Frequency Band 2.4 GHz
   
Network Standard

802.11b, 802.11g, 802.11n

   
Modulation Technology

OFDM with BPSK, QPSK, 16 QAM, 64 QAM; DBPSK, DQPSK, CCK

   
FEC Coding Rate 1/2, 2/3, 3/4, 5/6
   
Hardware Encryption

AES, TKIP, WEP

   
Quality of Service 802.11e
   
Communication Interface PCI-Express
   
Peripheral Interface GPIOs, LEDs
   
Memory Interfaces EEPROM
   
Supported Data Rates  
IEEE 802.11b 1 to 11 Mbps
IEEE 802.11g 6 to 54 Mbps
IEEE 802.11n 6.5 to 150 Mbps Tx
6.5 to 300 Mbps Rx
   

For more information on Atheros and Atheros wireless technology please visit www.atheros.com
Specification subject to change © 2010 Atheros Communications, all rights reserved

Atheros, the Atheros logo, XSPAN and the XSPAN logo are registered trademarks of Atheros Communications, Inc.

All other trademarks mentioned in this document are the property of their respective owners.

AR9281