Obsidian developed a number of DSP architectures, including this one for 1000BaseT. Complete DSP Front End model solution for Gigabit copper physical layer which includes:
- Choice of Matlab TM/Simulink or C++ DSP system behavioral model.
- HDL at block structural level.
- 7 Bit ADC compatible.
- Both bit level and floating point models.
- Efficient Tapered LMS resolution.
- Exploration of resolution / filter length trade-offs.
- Matlab cable and plant models developed from over 1800 individual plant measurements.
- Supports simple resistive hybrid.
- Option for baud rate or 2x over-sampled system.
- Detailed documentation.
- Support services for design integration.
- IEEE compliance in function and interface signaling.
Design Functions:
- Digital Timing Recovery.
- Automatic Gain Control System.
- Decision Feedback Equalizer.
- Echo Cancellation
- NEXT Cancellation.
- Offset Cancellation.
- DC Wonder Correction.
- Transmit filtering.
- State Controller.
- Models of Analog Front End Functions.
- Extensive cable and plant models.
