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AR9280

Single-chip 2.4/5 GHz 802.11n WLAN solution for PCI-Express™

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AR9280

Single-chip 2.4/5 GHz 802.11n

WLAN solution for PCI-Express™

Solution Highlights

• Single-chip, 802.11n compliant wireless LAN client solution

with integrated MAC, baseband and dual 2.4/5 GHz radios

• Based on third-generation 802.11n-compliant technology

• Support for 2x2 MIMO with spatial multiplexing and MRC

• Features 1x1 Dynamic MIMO Power Save to conserve system power

• Enables PHY rate of up to 300 Mbps

• Compliant with IEEE 802.11a, 802.11b, 802.11g, 802.11d,

802.11e, 802.11h, 802.11i, and 802.11n

• Lead-free RoHS compliant

AR9280 Architecture

2.4 GHz

2x2

Radio

Front-End

Circuits

RX Radio BB Filters

DAC

TX Radio in/out MUX

ADC

RX Radio BB Filters

DAC

TX Radio in/out MUX

ADC

Frequency

Synthesizers

Bias/Control

Host and Peripheral Interface

Baseband

MAC/Config

Control/

Memory

PCI-Express GPIOs Serial

EEPROM

40 MHz

Crystal

Atheros XSPAN® Technology

Atheros offers the industry's most innovative and

complete portfolio of 802.11n wireless LAN chip

solutions. This generation of Atheros’ XSPAN 802.11n

technology builds upon the company’s XSPAN

leadership – with enhanced performance, higher

integration, smaller form factors and lower overall

cost – to meet the needs of the rapidly growing 802.11n

market. Like all Atheros' 11n solutions, the new fourth-

generation solutions are compliant to the IEEE 802.11n

specification.

Atheros fourth-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/performance for specific

applications and market segment requirements;

• Rich Media & Peripheral Interfaces that anticipate the requirements

for advanced media networking applications and allow end-product

feature differentiation;

• Easy Network Setup with the industry’s simple network configuration

software that supports both the PIN and push-button setup methods.

Product Overview

Introducing the AR9280, the single-chip, dual-band (2.4/5 GHz) solution

for PCIe in XSPAN's third generation of products. The AR9280 is the most

integrated, most compact 802.11n solution for dual-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 mainstream-priced PC market.

It offers the optimal balance of performance, power and price with its

dual-band, 2x2 MIMO configuration which features downshift to 1x1

MIMO with Dynamic MIMO Power Save.

With this dual-band design, consumers will enjoy universal connectivity

to any 802.11 network, including legacy 802.11b/g and 802.11a/g.

While the 2.4 GHz band readily performs less demanding data applications,

the virtually interference-free 5 GHz band supports high-bandwidth,

latency-sensitive applications like HD-quality video streams and

wireless VoIP. Atheros is the leading provider of high-performance,

dual-band WLAN solutions in the retail, PC OEM, enterprise and metro

Wi-Fi segments worldwide.

In addition, the AR9280 follows Atheros' drive toward integration as the

company's eighth, single-chip, client solution on the market. The result

is a superior package footprint that drives down cost and enhances

design flexibility.

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