A Soft Access Point And Bluetooth Connectivity Provide An Attractive Wi-Fi Solution
Designers looking to incorporate Wi-Fi and Bluetooth into their next handset can tap new technologies from Atheros Communications. The company has combined its latest-generation AR6002 Radio-on-Chip for Mobile (ROCm) single-chip wireless local-area network (see the figure, below) with Qualcomm’s BTS4025 Bluetooth system-on-a-chip (SoC), which supports EDR 2.1 with class 1.5 power.
This combination provides the performance demanded by OEMs and ODMs developing cell phones based on any of Qualcomm’s Mobile Station Modem (MSM) chipsets for CDMA and WCDMA. Besides its small size, the AR6002 draws 30% less power than competitive solutions in active mode and near zero in standby mode. The chip is available in 802.11g and 802.11a/g formats. This platform supports Microsoft Windows Mobile and the Linux operating system as well as the Qualcomm BREW client and the Android open mobile software stack.
Also, the AR6002’s Soft Access-Point (AP) feature enables cell phones to serve as Wi-Fi access points. With this capability, handsets can act as mobile hotspots with support for up to four client devices. If the phone has a 3G connection, four laptops or netbooks can concurrently access e-mail, Web browsing, and multimedia downloads. Designers seeking some extra functionality can investigate the Atheros AR1511 single-chip GPS receiver and Orion 3.0 navigation software, which is designed for personal navigation devices and handsets.
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