有人用过ATHEROS AR5004芯片的产品啊？...

据说效果非常理想，各位要是有人使用过的话，我们可以多交流经验，不会有什么坏处。

Atheros AR5004 WLAN Solutions

Overview

Atheros AR5004 chipsets feature breakthrough technologies to extend the range and reduce the power consumption of 802.11 wireless networks. When they are incorporated into WLAN devices, AR5004 chipsets will offer end users extended range, longer battery life, and network management tools that help reduce the cost of operating and owning wireless networks.

AR5004 Advanced Features

eXtended Range Technology Atheros eXtended Range Technology benefits all markets. Traditional Wi-Fi chipset architectures focus on maximizing throughput in order to perform well in benchmarks and typical office environments. Such designs typically don抰 perform well at long range. Atheros?new chipsets feature a new baseband architecture that dramatically stretches the performance of a WLAN by enabling long-range connections. The architecture delivers receive sensitivities of up to ?05dBm, over 20 dB better than the 802.11 specification.

Power Management Atheros AR5004 chipsets also improve power consumption by 60% over 802.11b chipsets. The chipsets enable a multi-phase approach to signal processing that dramatically extends the battery life of mobile devices. The new design controls the power of different sections of the wireless device according to the level of system and network activity.

Wake-on-Wireless and Wake-on-Theft Other key features introduced with AR5004 chipsets include the Wake-on-Wireless?font color="#000000"> capability as well as the Wake-on-Theft?font color="#000000"> function. Wake-on-Wireless brings network management to the Wi-Fi environment and enables enterprise management tools to administer wireless systems. Wake-on-Theft, alerts network administrators if a mobile device such as a laptop or PDA equipped with the new Atheros chipsets is removed from a company抯 facility without authorization. The Wake-on-Theft function can also wake-up and raise an alarm on the mobile device, even if the device is powered off.

Super G?and Super A/G?/font> Also featured in AR5004 chipsets are Atheros' Super G?font color="#000000"> and Super A/G?font color="#000000"> technology which were introduced with Atheros' third-generation chipsets in May 2003.

AR5004 Chipset Highlights

The fourth generation AR5004G chipset supports 802.11b and 802.11g in the 2-GHz band from 2.300 to 2.500 GHz. The AR5004X adds support for 802.11a in the 5-GHz band from 4.900 to 5.850 GHz, thus enabling tri-mode or universal WLAN products. The AR5004X meets international requirements for WLAN operation based on the draft 802.11h and 802.11j standards. The only products to have CE marking for 5.470 GHz European operation and TELEC certification for 4.900/5.030 GHz Japan operation are based on Atheros chipsets. Both chipsets include support for emerging security standards such as Wi-Fi Protected Access (WPA) and draft 802.11i Advanced Encryption Standard (AES) with no performance reduction, and draft 802.11e Quality of Service enhancements. A single driver and firmware code base supports all Atheros chipsets, and provides both backward and forward compatibility with Atheros? previous and next-generation multi-standard designs.