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Spring 2003 Gigabit Ethernet Design Progress Report – Group 7

This progress report from Group 7, presented on April 17, 2003, highlights ongoing advancements in the Gigabit Ethernet design project. Key achievements include solving sensitivity issues, completing attenuation testing, and finalizing layout processes for Run 2. The report covers various tests, including loopback attenuation at different dB levels, alignment tolerance results, and power testing for VCSEL. The group is also focused on drafting their final paper while adhering to a structured Gantt chart for project management.

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Spring 2003 Gigabit Ethernet Design Progress Report – Group 7

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  1. Gigabit Ethernet DesignECE 4006C – Spring 2003 Group 7 Presentation #10 Courtenay Smith April 17th, 2003

  2. Progress Report • Sensitivity problem solved • Eye diagram comparisons • Attenuation testing complete: • Tx at 5dB, and 10dB. • Loopback (TxRx) at 5dB, 10dB, and 15dB • Alignment tolerance test completed. • Eye diagrams and Plot • Run 2 layout completed and shipped. • Begun work on final paper. Presentation #10 - April 17, 2003

  3. VCSEL Power Test Setup Presentation #10 - April 17, 2003

  4. V [ ] 8 mV = measured P mW =  P 25 W IN 320.5 1 320.5 289 mV =  P .903 mW 2 320.5 Sensitivity Problem Corrected • We were not driving the VCSEL hard enough. Presentation #10 - April 17, 2003

  5. Signal Comparisons Tx PRBS7 - Old Loopback PRBS7 - Old Loopback PRBS7 - New Tx PRBS7 - New Presentation #10 - April 17, 2003

  6. Tx Attenuation at 5dB D21.5 at 5dB K28.5 at 5dB K28.7 at 5dB PRBS7 at 5dB Presentation #10 - April 17, 2003

  7. Tx Attenuation at 10dB D21.5 at 10dB K28.5 at 10dB K28.7 at 10dB PRBS7 at 10dB Presentation #10 - April 17, 2003

  8. Loopback Attenuation at 5dB D21.5 at 5dB K28.5 at 5dB K28.7 at 5dB PRBS7 at 5dB Presentation #10 - April 17, 2003

  9. Loopback Attenuation at 10dB D21.5 at 5dB K28.5 at 5dB D21.5 at 10dB K28.7 at 10dB Presentation #10 - April 17, 2003

  10. Loopback Attenuation at 15dB D21.5 at 15dB K28.7 at 15dB Presentation #10 - April 17, 2003

  11. Alignment Tolerance Setup Presentation #10 - April 17, 2003

  12. Unconnectorized PD Eyes D21.5 K28.5 K28.7 PRBS7 Presentation #10 - April 17, 2003

  13. Alignment Tolerance Results Presentation #10 - April 17, 2003

  14. Alignment Tolerance Results Diameter of bottom circle  45 m Height of cone  76.7 m Presentation #10 - April 17, 2003

  15. Run 2 Layout Presentation #10 - April 17, 2003

  16. Gantt Chart Scheduled Progress Event On Schedule Progress Presentation #10 - April 17, 2003

  17. Game Plan • Assemble and Test Run 2 PCB. • Full throttle on FINAL PAPER. Presentation #10 - April 17, 2003

  18. Dan Quayle Quote of the Day.. “This president is going to lead us out of this recovery. It will happen.” Presentation #10 - April 17, 2003

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