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SiGe發表最小的雙天線輸入GPS接收器IC(英文內容)
(技術新聞, 2008年7月3日)
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SiGe Semiconductor Inc. has released SE4150L, a GPS radio receiver IC that features dual-antenna input capability for next-generation GPS systems. The SE4150L is designed to address the three primary challenges associated with embedded GPS applications: small size, low power, and low price, all while raising the bar for performance.
The 4x4mm device features a multi-bit output, which improves sensitivity and interference resistance for GPS solutions, and offers a system noise figure of 1dB and has improved input third-order intercept performance (IIP3). The SE4150L operates over a supply range of 2.7V to 3.6V and features a low standby current of <10µA. The device's digital I/Os and supplies have all been designed to operate from 1.6V to 3.6V to interface with smaller geometry baseband ICs and SoCs.
The SE4150L GPS receiver dramatically simplifies dual-antenna system design because it integrates antenna sensing, switching, and a high-performance low noise amplifier (LNA). The device also automatically responds to the connection of an external antenna and interfaces directly to the GPS baseband processor to provide a complete GPS radio receiver system.
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