Custom DSP Logic

Obsidian has 25 years experience working with custom logic layout. For hardwired DSP, where density and power are particularly important, custom logic layout remains the most effective design approach.

Obsidian has developed a high efficiency library of schematic / layout cells for fast implemented of custom DSP macro cells. The example shown is a simple LMS filter tap implemented using the library.

This approach features:

  • 4x denser than standard cell implementation.
  • 2x faster, 30% the power dissipation of standard cell.
  • Multiplier specific standard cells.
  • Use of ratiometric and half static logic.
  • Easy to port lambda based layout rule set.
tapLayout