ECE 135 – BtrLaytDanNvr Presentation 7

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Presentation transcript:

ECE 135 – BtrLaytDanNvr Presentation 7 Bryan Chavez with Kevin Parker & Pat Cleary March 10th, 2005

Work Summary Redesigned/Updated Website Ordered/Received Passives Remade and Verified Test Tx Board (oh yeah!) TxRx PCB Layout Approved Project Budget Bill of Materials

GANTT Chart

Completed Test Tx Board ← ← Outputs

Test Tx Board Setup

Test Tx Board Performance 0 dB 10 dB ● PRBS7 Pattern ● 3 minute interval ● BER < 10^-9 (For > 0 dB) 70 dB

Test Tx Board Performance (Continued) ● 70 db ● AC coupled ● 70 db ● Scaled down using potentiometer

Test Tx Board Conclusions Eye diagrams are very well-defined Potentiometer scales the eye dramatically Attenuation has minimal affect on eye Low BER rate suggests quality performance Group BtrLaytDanNvr is capable of building a working Tx board!

Revised Tx & Rx Schematics

Approved TxRx PCB Layout Passive Agressive

Project Budget Totals 259.26 Item Supplier Part # Quantity Unit Price ($) Total Amount ($) Ferrite Chip Inductor Digikey 490-1034-1-ND 30 0.12 3.6 Power Jack CP-002AH-ND 5 0.42 2.1 POT 1.0kOhm 3296W-102-ND 2.5 12.5 POT 25kOhm 3296W-253-ND Resistor 115 Ohm 311-115CCT-ND 10 0.08 0.8 Resistor 100 Ohm 311-100CCT-ND Resistor 24 Ohm RR12Q24DCT-ND 0.151 1.51 Resistor 10 Ohm RR12Q10DCT-ND Capacitor 10000 pF PCC103BNCT-ND 100 0.0366 3.66 Shipping 1 4.28 SMAs PENDING!!!! 2.5 Gbps ROSA Advanced Optical Components HFD3180-103 4 40 2.5 Gbps VCSEL HFE419x-541 14.5 58 PCB Board Fab Express PCB 2 59 118 Not Soldering Tx Output Group 3 Essential Part #3 Pride Drive Tx Backwards Basic Setup #1 N/A Self-worth Working Tx Test Board ECE135 Credential #2 Priceless Totals 259.26

Large Quantity Price ($) Bill Of Materials Product Vendor Item Number Quantity Required (per circuit) Large Quantity Price ($) Total Amount POT 1.0K OHM Digikey 3296W-102-ND 1 1.092 POT 25.0K OHM 3296W-253-ND RES 115 OHM 311-115CCT-ND 2 0.01682 0.03364 RES 100 OHM 311-100CCT-ND RES 24 OHM RR12Q24DCT-ND 0.02958 RES 10 OHM RR12Q10DCT-ND CAP 10000 PF PCC103BNCT-ND 18 0.01888 0.33984 CONN PWR JACK CP-002APJ-ND 0.40338 Ferrite Bead Inductor 490-1034-1-ND 5 0.064 0.32 VCSEL AOC HFE419x-541 7.25 ROSA HFD3180-103 Total 15.62366

Future Work Board 1 Final Approval & Fabrication Reorder Power & SMA Connectors Solder/Test Board 1 Midterm Report