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来源:LM317 Electronics Components编辑:IRISO Electronics时间:2021-06-15 15:01:23

PRI has demonstrated a real commitment to better serving its Asian customers by increasing their local sales and service capabilities,” said W.K. Lee, president of Shinsung, based in KyungiDo. We have increased our manufacturing capacity andhave already begun assembling and shipping TurboStockers to one of PRI's Korean customers. Our experience with the leading Korean semiconductor manufacturers will prove invaluable for serving PRI's customers in this important manufacturing region,” Lee added.

The Analog Devices-Intel effort in a number of respects mirrors the earlier StarCore DSP alliance between Lucent Technologies Inc.'s Microelectronics Group and Motorola Inc.'s Semiconductor Products Sector.

Both the Lucent-Motorola and Analog Devices-Intel efforts came in response to the continued dominance of Texas Instruments Inc. in the general-purpose programmable-DSP market, where it holds a nearly 50% market share. Combined, Lucent and Motor-ola-perennially No. 2 and 3 in the DSP market, respectively-begin to approach the size of TI.

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Analog Devices, Norwood, Mass., which has fluctuated between No. 3 and 4 in the four-player market, has gained a formidable partner in microprocessor king Intel. However, as Analog Devices and Intel bring their new DSP architecture to fruition, it appears that both have designs on the same wireless-handset applications, according to analysts.

Even without Frio, the past year was a breakthrough for Analog Devices' efforts to establish itself as a leading supplier of chipsets to the cellular-handset market, said Will Strauss, an analyst at Forward Concepts Co., Tempe, Ariz.

Analog Devices this year has been shipping significant volumes of GSM-compliant chipsets to Samsung Electronics Co. Ltd., and a month ago announced that Siemens AG will use its GSM/GPRS chipset in 2.5G handsets. Strauss estimates the design win with the world's fourth-largest handset manufacturer could boost Analog Devices' sales by 25 million units next year. The chipset Siemens is using will be built around Analog Devices' ADSP218x DSP and an ARM7 combination.

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Intel, meanwhile, has been working with Mitsubishi Electric Corp. on a 3G design, and earlier this year, Ron Smith, vice president of Intel's Wireless Communications & Computing Group, said Frio will provide the DSP functionality for the Intel Personal Client Architecture platform. IPCA will use Frio and the XScale microprocessor, a new Intel-designed implementation of the StrongARM.

IPCA is similar in structure and intent to TI's Open Multimedia Applications Platform (OMAP) for 3G, which is built around TI's TMS320C55x DSP and the ARM9 microprocessor.Analog Devices and Intel have revealed virtually no details concerning their DSP development plans since first disclosing in February 1999 that they would create a design center in Austin, Texas, to develop the core. Frio is expected to be a high-performance, low-power device, but it's not known if the architecture will be compatible with existing Analog Devices DSPs.

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The two companies declined to discuss the new core prior to its launch tomorrow.Although two years is not considered an inordinate amount of time to develop a new DSP architecture, there were indications that Analog Devices and Intel had intended to disclose the Frio at the Embedded Processor Forum in June. Intel has denied the introduction was ever delayed.

I'm used to the long stretch-out on these things,” Strauss said. I'm not overly concerned about the time it took up to now; the important thing is how quickly they execute from this point. They haven't revealed many details, but from what they've shown in some performance figures, it certainly will be competitive.”

For every Bar of boost over atmospheric, you're functionally doubling the displacement of the engine,” said Russ O'Blenes, manager for racing powertrains at General Motors (GM). So a 2.2-liter normally aspirated engine with an extra Bar of boost will think it's a 4.4-liter engine.”

By boosting engines that already have a relatively short piston stroke, manufacturers can turn the engine's crankshaft faster, which produces more horsepower. This year's engines will operate in a range between 1,000rpm and 12,000rpm.

GM, which produces the Chevy engine employed by KV Racing, is opting this year for twin turbochargers to provide the boost for its engines. The issue of twin- or single-turbocharger design is one of the few areas where engine manufacturers — including GM, Honda, and Lotus — are allowed some leeway.

Each engine manufacturer weighs the pros and cons of twin or single, and then they make their decisions,” O'Blenes said.

The twin weighs a little more and gets packaged on either side of the engine. The single gets packaged behind the engine. Either way, there are packaging and temperature issues that need to be considered. There's also inertia. People will sometimes run twin over single because they're smaller and spool up faster, which reduces turbo lag.”

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