Transcript Charcterization Presentation

Testing elements in a fast
communication channel
100GB/s
Midterm Presentation
Spring 2010
Developers: Hanna Alam and Yousef Badran
Project supervised by: Mr. Yossi Hipsh
Abstract
• One of the major goals was to examine the current technologies and
it’s boundaries .
• The road so far :
– Getting to know today's technology and look up parts that are
100GB/s compatible
– Studying the theoretical aspect of the Phase Lock Loop
– Testing the PLL in an Evaluation Board
– Measuring low frequency signals ranging 3~4GB/s
– Summing up the results and recommending suitable technology
to upgrade to 100GB/s
• Getting to know today's technology and look up parts
that are 100GB/s compatible
We need to understand how the transmitter, receiver and medium work
in 25GB/s transfer rate
What kind of components should we adapt for high frequency ?
Transistors, Diodes, Mixers, Counters, Flip-Flops, Amplifiers ...
What are their properties and how to catalogue them ?
•Studying the theoretical aspect of the Phase Lock
Loop
What is a PLL ?
PLL is a control system that generates a signal that has a fixed relation
to the phase of a "reference" signal, it responds to both the frequency
and the phase changes of the input signals
How it’s related to our project ?
• Testing
the PLL in an Evaluation Board
 We’ll examine and work with ADF4350 PLL in particular
 The goal is to use the PLL in a Eval-ADF4350EB1Z
evaluation Board
 Testing it in a free running mode and in locked mode
 Different frequencies…
 Relaxation period and stability for each frequency
•Eva-Board Block Diagram
 Eval-ADF4350EB1Z
 ADF4350
 USB connector
 Software
 Output connectors
•Measuring low frequency signals
Measuring low frequency signals ranging 3~4 GHz
Generate signals using HP-8133A
Pulse generator
Infiniium DSO80204B Oscilloscope
to measure signals
Understanding the measuring methods to be able to chose
the next generation measuring technology
•Summing up the results and conclusions
Gathering useful 100GB/s compatible devices on one catalogue
Suggesting ideas to how would be possible to work in 100GHz
frequency with a stable signal
Suggesting tools and ways to measure a signal in a high
frequency of 100GHz
Timeline
We’ve created a grant timeline in order to keep track of our work
Estimated timeline:
Examining today’s technology
Looking up devices
Learning about PLL
ADF4350 Evaluation Board
Measuring Signals
18/03 to 08/04
08/04 to 20/04
22/04 to 07/05
13/05 to 08/06
06/06 to 21/06
Questions?
Thank you…