Gigabit Ethernet Design ECE 4006C – Spring 2003 Group 7 Presentation #10 Courtenay Smith April 17th, 2003
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
VCSEL Power Test Setup Presentation #10 - April 17, 2003
Sensitivity Problem Corrected We were not driving the VCSEL hard enough. [ ] mW 320.5 V P measured IN = W 320.5 8 mV P 1 = 25 mW 320.5 289 mV P 2 = .903 Presentation #10 - April 17, 2003
Signal Comparisons Tx PRBS7 - Old Loopback PRBS7 - Old Tx PRBS7 - New Loopback PRBS7 - New Presentation #10 - April 17, 2003
Tx Attenuation at 5dB D21.5 at 5dB K28.5 at 5dB K28.7 at 5dB PRBS7 at 5dB Presentation #10 - April 17, 2003
Tx Attenuation at 10dB D21.5 at 10dB K28.5 at 10dB K28.7 at 10dB PRBS7 at 10dB Presentation #10 - April 17, 2003
Loopback Attenuation at 5dB D21.5 at 5dB K28.5 at 5dB K28.7 at 5dB PRBS7 at 5dB Presentation #10 - April 17, 2003
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
Loopback Attenuation at 15dB D21.5 at 15dB K28.7 at 15dB Presentation #10 - April 17, 2003
Alignment Tolerance Setup Presentation #10 - April 17, 2003
Unconnectorized PD Eyes K28.5 K28.7 PRBS7 Presentation #10 - April 17, 2003
Alignment Tolerance Results Presentation #10 - April 17, 2003
Alignment Tolerance Results Diameter of bottom circle 45 m Height of cone 76.7 m Presentation #10 - April 17, 2003
Run 2 Layout Presentation #10 - April 17, 2003
Gantt Chart Scheduled Progress On Schedule Progress Event Presentation #10 - April 17, 2003
Game Plan Assemble and Test Run 2 PCB. Full throttle on FINAL PAPER. Presentation #10 - April 17, 2003
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