Fujitsu Offer High-Sensitivity GPS/AGPS Chipset For Mobile/Telematics Apps

GPS NEWS

illustration only

London (SPX) Jul 22, 2004
Fujitsu Microelectronics Europe (FME) Wednesday announced a 2-chipset solution for high sensitivity GPS/AGPS receivers capable of indoors acquisition. The Fujitsu chipset achieves high performance (sensitivity, accuracy and TTFF) with low power and a small PCB footprint.

The highly integrated solution consists of a baseband chip and an RF front end chip (supporting GPS L-band C/A code). The baseband chip interfaces to a host CPU/MCU via a simple serial interface (UART).

Capable of operating in both 'autonomous GPS/standalone' mode and 'assisted GPS' mode, the chipset is designed to work in cellular handsets using any air interface such as UMTS/WCDMA, GSM/GPRS, PDC and CDMA technologies. It is versatile in that a receiver can be initially developed as an autonomous GPS receiver and subsequently software upgraded to AGPS when assistance becomes available.

Fujitsu provides a software library (API) for interfacing to the application software layer. The control software on the host CPU is processor and OS independent running as a single thread requiring no real-time interrupts, RTOS or host libraries.

The employment of power-saving techniques with the 0.11um technology results in a peak baseband power dissipation of 67mW during low signal strength acquisition, while the continuous tracking (1Hz update rate) power dissipation is less than 40mW.

The Acquisition/tracking engine on the chip has 44000 effective correlators, resulting in high indoor sensitivity calibrated to -157.5dBm and indoor accuracy of 20m. The chipset meets FCC-E911 requirements for October 2005. The solution achieves fast TTFF of 1s when hot and around 32s when cold for outdoors fixes.

The baseband chip (MB87Q2040) incorporates a highly optimised GPS/AGPS baseband IP licensed from eRide Inc. eRide's patented and proven GPS/AGPS IP, is based on extensive experience the company has gained in the GPS market.

The RF front-end chip (MB15H156), based on Fujitsu's BiCMOS process, integrates most RF-externals and features on-chip IF-filters, VCO, PLL, oscillators and LNA, resulting in a reduced BOM cost and component count and minimising the board area. Fujitsu is also developing a CMOS RF front-end which will be introduced later this year.

The MB87Q2040 and MB15H156 are housed in 7x7mm 48-pin and 5x5mm 32-pin BCC plastic packages respectively (keeping pin pitch at 0.5mm), giving a complete solution footprint of below 100mm2. The chipset operates over the industrial temperature range of -40 to +85 degrees C.

GPS NEWS

Raytheon Developing New Variant of Joint Standoff Weapon

Farnborough (SPX) Jul 21, 2004
Raytheon is developing a new variant of the Joint Standoff Weapon (JSOW) that will significantly lower unit cost and offer an additional payload option.

Thanks for being here; We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain. With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords. Our news coverage takes time and effort to publish 365 days a year. If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.
SpaceDaily Contributor $5 Billed Once credit card or paypal		SpaceDaily Monthly Supporter $5 Billed Monthly paypal only

The content herein, unless otherwise known to be public domain, are Copyright 1995-2016 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement All images and articles appearing on Space Media Network have been edited or digitally altered in some way. Any requests to remove copyright material will be acted upon in a timely and appropriate manner. Any attempt to extort money from Space Media Network will be ignored and reported to Australian Law Enforcement Agencies as a potential case of financial fraud involving the use of a telephonic carriage device or postal service.