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Software libraries for ST's STA2051 controller now available

Posted: 15 Nov 2005 ?? ?Print Version ?Bookmark and Share

Keywords:stmicroelectronics? st? sta2051? gps baseband controller?

STA2051 32-bit SoCs

STMicroelectronics (ST) introduced new software libraries for its STA2051 32-bit SoC GPS baseband controller, enabling the delivery of both higher performance and additional functionality for GPS and telematics applications.

The enhanced performance advantage provided by the new software libraries allows the STA2051GPS baseband controller IC, also known as 'Vespucci', to guarantee a high level of performance in urban regions or areas of dense foliage where GPS satellite visibility can be low, said the press release. The new library offers a high-sensitivity feature, called STrack1, which allows tracking in poor satellite visibility, and also has high acquisition sensitivity when re-entering into areas of good satellite visibility.

In addition, the new software libraries provide 'Dead Reckoning,' which uses vehicle-based sensors to carry out position determination during either failure or poor reception of GPS signals. For example, ST said, in tunnels or narrow valleys, positioning information can be fed to the STA2051's inputs by taking advantage of the sensors, such as an odometer for velocity and forward or bacKW:ard movement, and an angular acceleration sensor, such as a gyro or ABS sensor, as a directional indicator.

The STA2051 single-chip baseband IC integrates, on the same piece of silicon, a 32-bit ARM7TDMI microcontroller, a 12-channel GPS correlation DSP, 2Mb of flash memory, 64KB of RAM and a full range of peripherals, including ADCs, and CAN and USB interfaces. The device's embedded flash memory means easy upgrading of GPS and application software via the CAN or USB interface. A complete full functionality GPS chipset can be achieved with the addition of a single-chip GPS radio front-end, such as the company's STB5610.

"ST has a strong pedigree in the GPS chipset market, possessing the complete value chain, including hardware, software, ownership of IP and leading-edge design and manufacturing capabilities," commented Antonio Radaelli, manager of the car radio multimedia business unit within ST's Automotive Product Group. "We believe that the addition of extra functionality and the increased performance of the STA2051 GPS baseband controller at no additional cost should be a persuasive offer for OEMs looking to integrate GPS functionality into automotive- and consumer-based applications."

Additionally, a second version of the device, the STA2051E, includes an external memory interface for use where application software or data may not fit into the STA2051's internal flash.

Designed to operate over the -40C to 85C temperature range, the device is packaged in a 10-by-10mm TQFP64 (STA2051) or a 20-by-20mm TQFP144 (STA2051E). For the minimum configuration of the device, pricing for the STA2051 starts from $6.50.

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