Gigabit Ethernet PMD OptoLink Inc Status Report 7

Gigabit Ethernet PMD Opto-Link, Inc. – Status Report 7 Andrew Meyerson March 24, 2005

Gigabit Ethernet: Progress Summary Completed Tasks o o o Received Parts Built first board Began testing on first board First Draft of Report New Website Spring Break Fun Next Week’s Tasks o o Troubleshoot first board Build, test, and troubleshoot second and third board designs Design review for next fabrication Order additional parts

Gantt Chart

Board Construction o o o Boards and all of the parts arrived either before or over Spring Break Construction began upon arrival from Spring Break First complete board finished Tuesday afternoon

Board Construction (cont) o Each board has three Tx and Rx circuits n n n o One common anode (AOC VCSEL) One common cathode (Emcore VCSEL) One aggressive design First circuit constructed and tested was common anode

Board Layout Review

Board Construction (cont) o o 0603 parts are tiny…was it a good idea? Found a mistake on the board and used board surgery to attempt to fix it

Board Testing o o Rx component works Tx has problems n n Board surgery did not work well enough There is a short somewhere on the board that we need to find

Current Budget Digi-Key BC 1252 CT-ND $ 0. 02900 100 $ 2. 90 Digi-Key RHM 20. 0 HCT-ND $ 0. 07600 10 $ 0. 76 Digi-Key RHM 100 HCT-ND $ 0. 07600 10 $ 0. 76 Digi-Key RHM 115 HCT-ND $ 0. 07600 10 $ 0. 76 Digi-Key 3296 W-102 -ND $ 2. 50000 5 $ 12. 50 Digi-Key 3296 W-253 -ND $ 2. 50000 5 $ 12. 50 Digi-Key 490 -1034 -1 -ND $ 0. 12000 10 $ 59. 00000 2 $ 118. 00 Express PCB $ 1. 20 Advanced Optical Components HFE 419 x-541 $ 14. 50000 4 $ 58. 00 Advanced Optical Components HFD 3180 -103 $ 10. 00000 4 $ 40. 00 Digi-Key CP-002 APJ-ND $ 0. 73000 6 $ Jameco 188525 $ 4. 20000 10 Shipping 4. 38 $ 42. 00 $ 13. 00 Total: $ 302. 26

Next Week o o o Troubleshoot AOC VCSEL circuit Build Emcore circuit Build aggressive circuit Design Review of first circuits Order more parts? Stay Classy