原标题：Redpine Signals RS9110-N-11-02 Wi-Fi解决方案

　　Redpine Signals公司的RS9110-N-11-02是兼容IEEE 802.11bgn的Wi-Fi客户端模块,集成了MAC,基带处理器,RF收发器和功率放大器. 和RS9110-LI MAC/BBP芯片一起,提供完整的端到端低功耗WLAN应用,具有多线程处理器和丰富的外设接口,工作电压3.1V到3.6V.主要用在VOIP手机, 交互式遥控设备,工业自动化,MP3和MP4播放器以及数码相机和摄像机.本文介绍了RS9110-N-11-02主要特性, 系统方框图和RS9110-N-11-02无线指标, 软件架构图以及RS9110-N-11-02评估板(EVB) 主要特性和指标与在超移动PC(UMPC),IP照相机和个人媒体播放器的应用框图.

　　RS9110-N-11-02 802.11bgn WLAN Module

　　The RS9110-N-11-02 module is a complete IEEE 802.11bgn Wi-Fi client device with an integrated MAC, Baseband processor, and RF transceiver with power amplifier. Based on the Redpine Signals RS9110-LI MAC/BBP chip, the module provides a complete end-to-end solution for low-power WLAN applications. It includes a multithreaded processor and a rich set of peripheral interfaces. It can connect to a host processor through SDIO and SPI Interfaces.

　　RS9110-N-11-02主要特性:

　　• Conforms to IEEE 802.11b/g/e/i standards, single-stream 802.11 n

　　• 802.11n MAC features for high user throughput

　　• 802.11n Space Time Block Code (STBC) support for extended range and higher throughput

　　• Host interface through SDIO and SPI

　　• Bluetooth coexistence

　　• Integrated multi-threaded processor

　　• TCP checksum offloading

　　• IPsec offloading as required by 3GPP for Wi-Fi and mobile convergence

　　• Rich set of peripherals – UART, SPI, I2C, GPIO, and timers

　　• 2.4 GHz, 802.11n RF transceiver with high performance power amplifier

　　• Complete WLAN software along with host driver for various operating systems such as Windows XP, Linux, Windows CE

　　• Single supply 3.1 to 3.6 V operation

　　RS9110-N-11-02应用:

　　• VOIP handsets

　　• Interactive remote control devices

　　• Industrial automation and telemetry

　　• MP3 music and MP4 video players

　　• Digital cameras and camcorders

　　图1.RS9110-N-11-02系统方框图

　　RS9110-N-11-02无线指标:

　　图2.RS9110-N-11-02软件架构图

　　RS9110-N-11-02评估板(EVB)

　　The RS9110-N-11-02 evaluation board (EVB) is a complete IEEE 802.11bgn Wireless LAN evaluation platform for the RS9110-N-02 802.11bgn WLAN module. The RS9110-N-11-02 module is mounted on the EVB along with other supporting components including a 40 MHz reference oscillator, antenna and other passive components. The RS9110-N-11-02 is a high-performance, ultra low-power WLAN module providing IEEE 802.11n functionality in the single stream mode in the 2.4 GHz band. The board connects to a host processor through SDIO or SPI interfaces. It also provides the connectivity for the WLAN module to the Vector Signal Generator (VSG) and Vector Signal Analyzer (VSA) through a microwave coaxial connector switch mounted on the EVB. The RS9110-N-11-02 evaluation board facilitates the integration of the module into a host platform and its performance measurement.

　　RS9110-N-11-02评估板(EVB)主要特性:

　　Supports IEEE 802.11bgn operation

　　Frequency Band - 2.4GHz

　　Operating channels

　　USA – Channels 1 to 11

　　Japan – Channels 1 to 14

　　Europe – Channels 1 to 13

　　Integrated omni directional chip antenna

　　40 MHz, 20-ppm reference oscillator

　　Connectors for power measurement

　　Microwave coaxial connector switch

　　Support for SDIO and SPI host interfaces

　　Supply voltage of 3.1V to 3.6V

　　It can be powered through SDIO or SPI interface, or through external power supply 802.11n drivers and configuration tools for Windows XP, Linux and Windows CE platforms RS9110-N-11-02评估板(EVB)指标:

　　图3.RS9110-N-11-02评估板(EVB)外形图

　　RS9110-N-11-02评估板(EVB)应用:

　　1. Ultra Mobile PC

　　The Ultra-Mobile PC’s (UMPC), Ultra-Mobile Devices (UMD) and Mobile Internet Devices (MID) are witnessing one of the fastest growths in the mobile device market today. These devices provide access to content and information virtually anytime and anywhere in addition to services like e-mail, voice, instant messaging, data sharing, audio/videa playback, gaming, etc. There are new applications and use-case scenarios being added constantly while their size is decreasing and battery life is increasing. To this end, robust and low power wireless connectivity is a primary requirement for these devices. They can be connected to the LAN, directly to the Internet or to another mobile device using Wi-Fi, 3G/4G and Bluetooth. The RS9110-N-11-02 fits in best with these requirements with its small footprint and industry-beating power and performance numbers. It provides an easy-to-integrate SDIO interface and also a Bluetooth coexistence interface for platforms which require Bluetooth connectivity along with Wi-Fi.

　　图4.超移动PC(UMPC)方框图

　　2.IP Camera

　　The video security and surveillance market has been experiencing unprecedented growth, thanks to the increased global security concerns and advent of the new technology. The IP camera is a camera that captures and encodes the image data, and transports it across the IP network, so that it can be securely monitored and managed remotely. As WiFi becomes ubiquitous, the IP cameras enabled with WiFi bring the security management to a new dimension through wireless transportation and management. Redpine’s RS9110-N-11-02 provides a flexible and scalable ultra low power 802.11bgn solution for both low-end and bandwidth hungry high-end IP cameras, as it can support 30Mbps application-level throughputs. As this 802.11bgn module is available at the same cost of the existing 802.11bg solutions in the market, it provides a cost-effective solution for WiFi based IP camera.

　　图5.IP照相机方框图

　　3. Personal Media Player

　　The last few years have witnessed a dramatic growth in Personal Media Players (PMP). PMP’s have evolved from offering the basic MP3 playback functionality and are today adopting the latest in multimedia and wireless markets. Future features include playback of streaming High Definition video as well. PMP designers face the challenge of constantly adding new features to their products while keeping the cost low and battery life high. While application and media processors have been able to keep up with the speed and power requirements of these new applications to some extent, the challenge has now moved to providing the same requirements in transferring data from a central server to the portable device. This requires the wireless network connection to be highly robust over a long range. The RS9110-N-11-02 module is the perfect answer for these needs. With a small footprint, which is ideal for portable devices, it provides high speed Wi-Fi connectivity by way of its single-stream 802.11n technology while also operating at ultra-low power levels by implementing state-of-the-art power management techniques.

　　图6.PMP方框图