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Content posted in June 1999
Board design toes transmission line
6/8/1999   Post a comment
As CMOS semiconductor density advances, ICs are getting faster while the number of high-speed nets multiplies. Interconnects at the board and system level have become the limiting factor to increased system performance and EMI compliance. Every engineer working on high-performance systems has an EMI or signal-integrity horror story, rooted in limited engineering insight. The challenges of designing high-performance systems will not diminish. Waiting to debug a product until after prototype fabri
Characterization key in analog IP
6/8/1999   Post a comment
Analog intellectual-property design verification, characterization and behavioral model generation are extremely engineering- and computer-intensive processes. Analog IP lies dormant because it is extremely difficult to reuse in its current form; changes in fabrication processes, loss of the original designer's intent and changing design performance requirements all create obstacles. Additionally, a lack of understanding of the range of performance often makes it easier to start a new design rat
Behavioral modeling tackles details
6/8/1999   Post a comment
Even with the intense activity in the development of such mixed-signal hardware-description languages as Verilog-AMS and VHDL-AMS, behavioral modeling is neither a new nor a difficult concept. The behavioral description of an analog or mixed-signal system is closely coupled with top-down design methodology. That modeling technology, through analog behavioral language, provides a base for design specification and documentation. A direct benefit is improved design efficiency, which better delivers
The art of automating analog design
6/8/1999   Post a comment
To presage the annual Design Automation Conference (DAC) in New Orleans June 21 to 25, this week's Signals section homes in on design tools for analog and mixed-signal electronic systems, where the designs flows are significantly longer and more difficult than those for digital logic. An oft-repeated maxim is that while analog will take up less than 20 percent of the circuit area of a new IC or system, the design effort required can easily consume 80 percent of allocated time.

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There’s a further cool thing you can do with a spreadsheet that most SPICEs can’t. That’s to use the spreadsheet ‘solver’ functionality to adjust component values in the search for a better-fitting circuit – or even to find a set of component values for a circuit you can’t otherwise design.
Infineon MOSFETs have been embedded into PC boards by Schweizer Electronic AG
You now need to adjust component values to achieve some system goal, such as predefined frequency response or time behaviour, and there’s no closed method for working out those values.
As a member of the electronics design community, I am angry and disappointed with the recent deaths of 346 people due to the Boeing MAX 8 design
The theoretical advantages of GaN-based power transistors are now being realized in mainstream system designs. Power supplies for data centers and telecom switching racks are two application areas where GaN transistors show significant improvement in comparison to systems using best-in-class Silicon-based Superjunction devices.
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