Gigabit Ethernet PMD Opto-Link Inc. – Presentation 6 Bryan Justice March 10, 2005

Gigabit Ethernet: Progress Summary Converted schematic into board layout using ExpressPCB software. Board layout review Complete ordering of passives First written report Follow-up on backordered parts Receive parts If all parts are received, we can build our first board and begin testing Website Spring break fun Completed TasksNext Week’s Tasks

Gantt Chart

Transmitter Schematic

Receiver Schematic

Board Layout Bottom left: Common cathode layout Bottom right: Common anode layout Top: Aggressive layout We opted for a third layout on the board instead of implementing a reversible common anode/cathode layout. We can use this board with both the AOC and Emcore VCSELs.

Keys to design Good design practice and saving space allowed us to fit three layouts onto one miniboard. We may use both our primary AOC VCSEL or our secondary Emcore VCSEL with the two bottom layouts.

Design Elements (Continued) The use of 06x03 passive components allowed for shorter lines, which is critical for avoiding large transmission lines with the high-frequency signal. We determined that the 06x03 sized parts would not be significantly more difficult to solder than the 08x05 parts.

Estimated Budget Digi-KeyBC1252CT-ND $ $ 2.90 Digi-KeyRHM20.0HCT-ND $ $ 0.76 Digi-KeyRHM100HCT-ND $ $ 0.76 Digi-KeyRHM115HCT-ND $ $ 0.76 Digi-Key3296W-102-ND $ $ Digi-Key3296W-253-ND $ $ Digi-Key ND $ $ 1.20 Express PCB $ $ Advanced Optical ComponentsHFE419x-541 $ $ Advanced Optical ComponentsHFD $ $ Digi-KeyCP-002APJ-ND $ $ 4.38 Jameco $ $ Total: $

Ordering final components The 06x03 capacitors were backordered, but should be in and shipped in time for our return for break. The PCBs will be ordered before break and should also be in our possession after break. The intention is for all components to have arrived for our return from break.

Next Week Order PCBs First written report Follow-up on backordered parts Receive parts If all parts are received, we may build our first board and begin testing Complete website Spring break fun

References ECE164 Group 2 Presentations. (April 17, 2004). ECE164 Group 2 Website. Retrieved February 24, 2005 from Various vendor and manufacturer websites