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Tiny receiver offers precise GPS, GLONASS positioning

Posted: 09 Feb 2011     Print Version  Bookmark and Share

Keywords:receiver  GPS  GLONASS  location-based services 

ST-Ericsson debuts what the company claims is the smallest available receiver that is able to see both GPS and GLONASS positioning satellites, enabling faster and more reliable location-based services from mobile devices.

The combination of GLONASS and GPS technology is particularly useful for positioning in dense "urban canyon environments", where tall buildings can obscure satellite signals. Compared to GPS-only solutions, the device cuts the time it takes to initially determine a device's location.

The CG1950 is built in 45nm silicon and needs just two external components, enabling manufacturers to produce sleek, low-cost devices. The low-power device is designed to be integrated into mobile phones, camcorders, cameras and other mobile devices, supporting navigation, mobile social networking, augmented reality and other location-based services.

The combination of GPS and GLONASS, will enable devices to retrieve positioning data from more than 50 satellites by the end of 2011.

The receiver features -163dBm acquisition sensitivity and -165dBm tracking sensitivity with embedded LNA (single-ended antenna), autonomous (cold start) TTFF of <38s, and A-GPS (hot start) TTFF of <1s. Its low power consumption enables continuous Global Navigation Satellite System tracking for more than 30hrs with a standard 850mAh battery.

Set to be in commercial handsets by Q3 2011, the CG1950 will be available as a stand-alone component and integrated into ST-Ericsson complete cellular platforms.

- Jean-Pierre Joosting
EE Times Europe

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