EDN Access

April 23, 1998

Cover Story

  • EDN's 1998 DSP-architecture directory
    The explosive growth of DSP-based applications has created an unprecedented demand for this directory. We've packed EDN's annual DSP Directory with details of 27 general-purpose DSP architectures. As an added bonus, you can access our parametric search engine that allows you to find the DSP device that matches your design needs.
    --Markus Levy, Technical Editor

16-bit DSP chips
24-bit DSP chips
32-bit DSP chips

Design Features

  • Investment in voltage references pays big system dividends
    Unglamorous yet critical components, voltage references are increasingly showing up in high-volume applications. By choosing the right reference IC and applying it with care, you'll achieve superior system performance.
    --Bill Schweber, Technical Editor

  • Debugging embedded systems: Using hardware tricks to trace program flow
    If your embedded system is too small to provide even a trace buffer or a serial port as debugging aids, you can use a variety of hardware tricks to observe your program's activity.
    --Stuart R Ball

  • Critical-mode control stabilizes switch-mode power supplies
    Discontinuous-conduction-mode operation eases switch-mode power-supply design and allows for better response to step-load changes. Operating at the critical-conduction point--beginning a new cycle at the exact point the inductor current falls to zero--ensures that the converter stays in discontinuous-conduction mode.
    --Christophe Basso, Motorola Semiconductor

Leading Edge

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