原创 ESD标准

2007-2-13 15:30 3694 6 13 分类: 测试测量

     附件是花了80多块钱买的ESD标准,呵呵,大家看看了!最近处理了不少有关EMC方面的客诉,特别是ESD方面的,还为此跑了一趟南京。其实我发觉现在有些人对PCB存在误解,认为那是低智商的活,其实不然,这次去南京就是因为他们的PCB工程师对EMC认识不足,造成ESD不过。现在有人整天在网上说自己画PCB如何的强,那么出了问题,你们可以分析出来吗?一个好的PCB工程师,必须有通信方面的相关知识,出了问题,你要会分析。至于用什么EDA软件,那是其次的!现在我在fsc做PCB首席设计师,经常有这样的问题需要处理,见的多了,就说一下!


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用户1318081 2009-1-8 20:48

As the saying goes, you get what you pay for. However, Freescale Semiconductor's upcoming i.MX515 processor, based on the ARM chip architecture, should defy that belief, offering 1GHz speeds for under $200. The company plans to showcase the new silicon this week at CES, hoping to wow consumers with its low-power, gigahertz performance. Freescale, once a chipmaking arm of Motorola, doesn't consider its latest product as an attempt to compete with Intel. Rather, the company wants to remain on the lower-priced spectrum while offering admirable speed for consumers. “We see a huge opportunity in the netbook market as consumers demand more cost-effective and higher performing solutions,” said Lisa Su, senior vice president and general manager of Freescale’s Networking and Multimedia Group. “Our solution for netbooks will enable OEMs to develop compelling products that feature cell phone-like battery life at extremely aggressive price points. We believe the combination of the i.MX515 processor and related enablement solutions will dramatically accelerate the evolution of this exciting new space.” With the help of Pegatron (a wholly owned Asus subsidiary), the company already has a reference design netbook ready for display at CES. The device will not only sport the i.MX515 processor, but feature Canonical’s Ubuntu operating system, a new power management IC from Freescale, the SGTL5000 ultra low-power audio codec and Adobe Flash Lite software, Adobe’s Flash Player for mobile phones and devices. The demo unit also features an 8.9 inch display and a battery capable of sustaining eight hours of life between charges. The company manufactured the i.MX515 processor using 65-nm process technology, provides up to 2100 Dhrystone MIPS and can scale in performance from 600MHz to 1GHz. The processor uses no cooling fans or heat sinks, relying on "advanced power management features" such as dedicated, hardware-based acceleration block. Freescale will also incorporate low-cost printed circuit boards and a memory interface supporting both DDR2 and mobile DDR1. "The i.MX515 is one of the only processors to offer both OpenVG and OpenGL graphics cores, thereby enabling 2D and 3D graphics as well as Flash and SVG for enhanced user experiences," says the company. "Video created for the Adobe Player is one of the leading video formats on the Internet today. Working with Adobe, Freescale plans to enable the Adobe software to run on the processor’s dedicated OpenVG graphics block, thereby extending battery life and enabling netbook web browsing experiences as rich and responsive as those on traditional PCs." The netbook's summary page also lists a few interesting features, including analog HD720p component TV output, a multi-format HD 720p video decoder and a D1 video encoder hardware engine. Freescale plans to begin mass production sometime in Q2 2009, with a commercial release slated for the 2009 holiday shopping season. With the $200 pricetag, this netbook is definitely worth a peek when it appears at the end of the year.

用户110037 2007-12-28 10:03

  晕,全英文的,看着累!

用户1196145 2007-3-10 11:01

顶一下!多谢资源共享!

用户900892 2007-3-1 16:05

太贵了!

 

用户1169282 2007-2-28 10:04

非常同意这个观点:好的PCB设计工程师一定是一个综合知识能力特别强的人。不懂电路机理是很难把电路很好的实现出来的。

用户1318081 2007-2-14 11:19

谢谢捧场!

用户1053025 2007-2-13 16:10

顶一下!

首席设计师,真让人羡慕啊:D

用户1318081 2007-2-13 15:34

   呵呵!
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