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Communications ICs (Wired)
News Release from: STMicroelectronics | Subject: Teseo GPS engine
Edited by the Electronicstalk Editorial
Team on 24 August 2007
GPS engine suits portable devices
The integration of ST's newest GPS solution improves tracking in poor satellite visibility conditions and shortens GPS signal acquisition times.
STMicroelectronics has launched volume production of its Teseo GPS engine designed for use in certain Garmin portable navigation devices (PNDs) and handheld GPS receivers "We are proud to announce that our state of the art GPS technology has been selected for Garmin's new range of portable and handheld devices", said Domenico Rossi, General Manager of ST's Car Radio and Multimedia Division
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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"ST is one of the few players in this market that can offer high-performance and cost-effective GPS solutions, based on robust silicon technology, experience in the automotive market, and know-how developed in collaboration with leading navigation manufacturers".
ST's Teseo platform is a turn-key solution that combines reliability and cost-effectiveness with enhanced performance and extended functionality.
Superior tracking sensitivity is vital for portable navigation devices that have the antenna inside and their satellite visibility is further deteriorated by the "shield effect" of the car front window.
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The integration of ST's newest GPS solution improves tracking in poor satellite visibility conditions and shortens GPS signal acquisition times.
ST Teseo's TTFF (time to first fix) values, the time it takes a GPS receiver to find satellites, rank among the fastest in the industry.
A "warm start" -- the acquisition of accurate time, satellite positioning and velocity (ephemeris) data that have been lost during the switch-off takes less than 34 seconds.
ST's new GPS chipsets support satellite-based augmentation systems such as WAAS (wide area augmentation system) and Egnos (European geostationary navigation overlay service) that provide additional accuracy and reliability.
Teseo's GPS accuracy expressed in circular error probability (the radius of a circle that represents a 50% probability of a position lying in that circle) is as low as 2m.
ST's Teseo devices are ready for compliance with Galileo, the upcoming European navigation system complementary to GPS.
ST's Teseo solution integrates a high-sensitivity single-chip baseband (STA2058) with embedded flash and an RF front-end (STA5620), complemented with full software libraries.
The product is available both in a single-package form (STA8058) and as a dual-chip offering.
ST designers are currently working on a system-on-chip solution that integrates the Teseo GPS engine and an ARM9 core for GPS navigation processing.
The embedded Flash memory enables the equipment manufacturer to load the entire GPS software.
The Teseo GPS baseband IC integrates a rich set of peripherals, including a CAN 2.0 B active interface, a four-channel 12bit A/D, I2C (Inter-IC), UART (universal asynchronous receiver-transmitter), SPI (Serial Peripheral Interface), GPIO (General Purpose Input / Output), and USB.
ST's Teseo platform addresses a wide range of applications, including personal navigation devices and handheld GPS receivers, in-car navigation, telematics and electronic toll collection.
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