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RF/Microwave??

GPS chipset eases design of navigation systems

Posted: 16 Oct 2006 ?? ?Print Version ?Bookmark and Share

Keywords:Atmel? GPS? ATR0663? ARM926EJ-S? personal navigation devices?

Atmel Corp. has introduced a new GPS chipset that integrates the latest GPS correlation technology with an ARM926EJ-S-based microprocessor. This device includes an extended instruction set with DSP extensions and a set of peripherals intended to simplify design and drive down system costs for the rapidly expanding market for personal navigation devices (PNDs), car navigation and recreational applications.

Atmel said the ARM9-powered ATR0663 includes an advanced GPS baseband and an LCD controller with integrated 2D graphics accelerator for virtual screen support of 2048 x 2048 pixels, an AC97 audio controller, as well as an image sensor interface. Numerous I/O options including Ethernet, USB 2.0 Full Speed Host and Device, SD/MMC, TWI and USARTs provide a highly-targeted SoC solution for PND applications. In addition, a dual external bus interface and 9-layer bus matrix allow for fast memory access and high throughput without loading the MCU.

The GPS engine, based on Magellan's GPS technology, boasts capability for the fastest acquisition of satellite signals, with a hot start in less than two seconds, and the highest tracking sensitivity (-159dBm) available. The advanced GPS technology employs the power of tens of thousands of correlators to achieve rapid satellite acquisition and reliable tracking under weak signal conditions.

Rounding out the chipset introduction, the companion ATR0603 RF receiver IC maximizes the performance of the new GPS engine while combining low cost and low power consumption of only 12mA in operation.

Also compatible for use with the new chipset is Atmel's existing ATR0610, a fully-integrated, low-noise amplifier manufactured using the company's SiGe process to cope with challenging reception environments and enabling cost-sensitive passive-antenna designs.

"The release of this new RF receiver and ARM926EJ-based device sets a new standard for the combination of high-performance GPS with a complete system processor that has all the peripherals necessary to meet the needs of the growing PND market. It is an ideal complement to our automotive-grade ANTARIS GPS solution," commented Matthias Kaestner, Atmel's marketing director for communications products.




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