Capstone Design UpdateCapstone Design UpdateWeek 9Week 9

ECE 4006 – Group 1ECE 4006 – Group 1Presentation by:Presentation by:

Ragad Amin Al-HuqRagad Amin Al-Huq

27 March, 200327 March, 2003

Progress SummaryProgress Summary

Completed and turned in the first reportCompleted and turned in the first report

Built the circuit for the regular design of Built the circuit for the regular design of the transceiver modulethe transceiver module

Tested the receiver and transmitterTested the receiver and transmitter

Started to solder in the parts for the Started to solder in the parts for the aggressive designaggressive design

Completed Transceiver BoardCompleted Transceiver Board

Oops!! might have blown up the PD!!Oops!! might have blown up the PD!!

Got confused between the Got confused between the cathode and the anodecathode and the anode

Grounded the cathode pin of Grounded the cathode pin of the photodetectorthe photodetector

Remedy: scratched off the Remedy: scratched off the connection between ground connection between ground and cathode pin, reversed and cathode pin, reversed the PD on the boardthe PD on the board

Maybe not!Maybe not!

PRBS7 K28.5

Transmitter Test ResultsTransmitter Test Results

However…However…

When constructing the board initially, we When constructing the board initially, we soldered in the common cathode VCSEL soldered in the common cathode VCSEL with the anode going to ground.with the anode going to ground.

After we fixed this, no signal was After we fixed this, no signal was transmittingtransmitting

Gantt ChartGantt Chart

Upcoming TasksUpcoming Tasks

Continue with the testingContinue with the testing