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84 The PCB Design Magazine • August 2016 1 Beyond Design: Mastering "Black Magic" with Howard Johnson's Seminars Barry Olney recently reviewed Dr. Johnson's High-Speed Digital Collection, a total of 36 hours of viewing time. The picture that Howard paints leaves a lasting im- pression on how electromagnetic fields propagate and how they induce voltages and current (crosstalk) into nearby signals. Here is a section-by-section discussion of the course con- tents. You will be on the edge of your seat. 2 Mentor Graphics Extends the PADS PCB Product Creation Platform The vast majority of to- day's electronic products contain analog content which must be designed and validated in the context of the overall system, making analog/ mixed signal simulation critical for product creation. To address this need, the new PADS AMS Cloud, a cloud-based circuit exploration/simulation environ - ment and user community, is free to all PADS users. 3 EMA Acquires Accelerated Designs for its Extensive Part Library and Expertise EMA Design Au- tomation has ac- quired Accelerated Designs, a company known for its domi- nance in EDA part library content and solutions including a 7.2-million-part database and its specialist library tool Ultra Librarian. 4 Software Bytes: Having Fun With Impedance About a year ago, I was assigned a new project: become an expert in im- pedance, more or less. I had no idea how much this research would bring out the nerd in me. I'm still not an impedance guru, but I've learned a lot about how impedance requirements affect PCBs. Even if you don't typi- cally design controlled-impedance circuit boards, you probably will eventually. TOP TEN Recent Highlights from PCBDesign007

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