la4485.pdf Integrated circuits - Service manuals, schematics, documentation, applications, datasheets, electronics

This batch of Design Ideas deals mostly with power. A friend related an incident at a design review, in which the lead engineer informed a corporate exec that the project was only 3 dB over its budget. The exec went away happy (for the moment), and the engineer muttered, "That's a factor of two, because money equals power."Our leadoff Design Idea, "Exte... (more) Details... more...

Medieval theologians may have argued about how many angels could dance on a pinhead, but contributors to Design Ideas seem focused on driving more LEDs with fewer microprocessor I/O ports. Here we go again, with the latest and possibly last (for a while) entry in the category. This time, authors Nedjeljko Lekic and Zoran Mijanovic show us that “Three microcontroller ports drive 12 LEDs Details... more...

Here in the United States, people celebrate late November’s Thanksgiving holiday by cooking a turkey. By the first of December, the leftovers are mostly gone and the picked-over carcass awaits the soup pot. This fortnight’s Design Ideas have already landed in the EDN stewpot, and there’s not a turkey in the bunch.If you’re stuffing a class-D amplifier in your latest product, youR... (more) Details... more...