Obsidian has 25 years experience working with custom-logic layout. Particularly for hardwired DSP, where density and power are important, custom logic layout remains the most effective design approach.
Obsidian has developed a high-efficiency library of schematic / layout cells for quick implementation of custom DSP macro cells. The example shown is a simple LMS filter tap added 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 ratio-metric and half static logic.
- Easy to port lambda based layout rule set.
