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来源:LM317 Electronics Components编辑:Transcend Information时间:2021-06-14 05:11:01

What’s more, the industry must avoid the past mistakes made in the early stages of the 300-mm era, where chip makers and fab-tool vendors experienced a number of false starts in the arena, thereby pushing out 300-mm fabs in mass production, he added.

« Qualcomm et Elata partagent la même vision : Aider les opérateurs et fournisseurs de services à développer et à étendre un contenu mobile multi-fonctionnel en Europe et ailleurs », affirmait Stephen Dunford, directeur général d’Elata, dans un communiqué. « Nous serons en mesure de faire profiter les marchés internationaux de nos technologies conjointes, soit en renforçant l’offre de services des opérateurs, soit en permettant à ces derniers d’installer rapidement une solution plus variée. »

Richmond, Va. — Weidmuller offers a new family of input/output distributors for automation and process control applications. The new ECO SAI block product line is available with four, six or eight M12 ports.

HTSW-106-21-S-S-LL

Designed for less stringent industrial floor applications, the new ECO SAI distributors are designed to offer class IP 68 protection. They are installed on-site and their flat, sturdy design protects the devices from harsh industrial environments where space is limited.

These distributors are designed with a pluggable connection hood for bus lines that enables easy maintenance. For example, in the case of a defective cable, only the cable needs to be exchanged — not the entire distributor. Screw connection technology is used to connect the bus line across a terminal range of 0.1 mm to 1.5 mm (approx. 27 to 15 AWG.) The captive fixing screws are made of steel, and have slotted and cross-recessed heads.

HTSW-106-21-S-S-LL

Available in industry standard gray (RAL 7032), ECO SAI housings are made of the Pocan plastic, a self-extinguishing material with a flammability class of UL 94 VO. All ECO SAI distributors are classified as pollution severity III devices. They also have worldwide approvals for CSA/UL, CE and C-Link.

Available now, pricing starts at $45.00 for the ECO SAI block product line.

HTSW-106-21-S-S-LL

Weidmuller , 804-794-2877, www.weidmuller.com

Editor's note: For more information on industrial control products and technologies, visit Industrial Control DesignLine.

For one thing, a multi-processor approach might be less expensive than a single-processor approach. Processor vendors usually charge a premium for their fastest parts, so slower parts often provide more bang for the buck than their speedy counterparts. In addition, sending all the channels through a single processor requires pumping a lot of data through that processor. This means you’ll need high-bandwidth I/O interfaces and high-speed memory. These high-bandwidth components are likely to be expensive. By spreading the load across multiple processors, you can use slower, less expensive I/O and memory systems.

This is not to say that there is no advantage to having a faster processor. It is usually important to minimize the time, effort, and risk associated with the development process, and having a faster processor helps meet these goals. Having a faster processor lets programmers spend less time and effort squeezing inefficiencies out of the software—meaning the product can get to market faster.

And it’s often a good idea to have a little extra speed so you can deal with surprises in the design process. For example, performance headroom is handy if features are added late in the design process—or if it turns out that the application requires more throughput than you thought. Having some processing power left over also makes it easier to re-use the design for derivative products. But this extra speed usually isn’t free. You probably will have to sacrifice cost, energy efficiency, or other important factors to get the extra horsepower.

In short, Which processor is fastest?” is usually the wrong question to ask for a signal-processing application. Instead, the question should be Of the processors that are fast enough to get the job done, which will best meet my design goals of low cost, low power, short development time, and low risk?” More often than not, the answer will be the slowest—and not the fastest—option.

Jeff Bier is the general manager of Berkeley Design Technology, Inc. (www.BDTI.com), a consulting firm providing analysis and advice on DSP technology. Kenton Williston of BDTI contributed to this column.

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