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

2. 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

3. GANTT Chart

4. Completed Test Tx Board← ←
Outputs

5. Test Tx Board Setup

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

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

8. 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!

9. Revised Tx & Rx Schematics

10. Approved TxRx PCB Layout
Passive
Agressive

11. Project Budget Totals 259.26 Item Supplier Part # Quantity
Unit Price ($)
Total Amount ($)
Ferrite Chip Inductor
Digikey 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
CCT-ND 10
0.08
0.8
Resistor 100 Ohm
CCT-ND
Resistor 24 Ohm
RR12Q24DCT-ND
0.151
1.51
Resistor 10 Ohm
RR12Q10DCT-ND
Capacitor pF
PCC103BNCT-ND
100
0.0366
3.66
Shipping 1
4.28
SMAs
PENDING!!!!
2.5 Gbps ROSA
Advanced Optical Components
HFD 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

12. 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
CCT-ND 2
RES 100 OHM
CCT-ND
RES 24 OHM
RR12Q24DCT-ND
RES 10 OHM
RR12Q10DCT-ND
CAP PF
PCC103BNCT-ND 18
CONN PWR JACK
CP-002APJ-ND
Ferrite Bead Inductor ND 5
0.064
0.32
VCSEL
AOC
HFE419x-541
7.25
ROSA
HFD
Total

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