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GPS baseband IC for $5

Posted: 19 Apr 2005 ?? ?Print Version ?Bookmark and Share

Keywords:atmel? global positioning system baseband ic? gps baseband ic? atr0640? thales navigation?

Atmel Corp. released the industry's first 14-channel, Global Positioning System (GPS) baseband IC to carry a $5 price tag and three-meter accuracy. Designated the ATR0640, the device was jointly developed with Thales Navigation for its Magellan eXplorist handheld GPS units.

The IC achieves horizontal resolution of one meter (corrected) and three meters (autonomous). Vertical resolution is five meters (corrected) and velocity is measured to within 0.1 meters/second. The chip features -137dBm acquisition sensitivity and -150dBm tracking sensitivity. It is capable of processing signals from as many as 12 different tracking satellites simultaneously.

The maximum position update rate is once per second. Developed specifically for portable handheld applications, the device dissipates 70mW under continuous operation at 16MHz, and 18mW in power-saving mode. Time-to-first-fix (TTFF) signal acquisition takes less than 90s from a cold start, 30s from a warm start and 15s from a hot start. Once fixed, signal reacquisition takes less than a second. The ATR0640 is priced at $5 each in 100,000-piece quantities. It is available now in a 12-by-12mm LFBGA package.

- Janine Love
eeProductCenter




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