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 18/03 to 08/04 Looking up devices 08/04 to 20/04 Learning about PLL 22/04 to 07/05 ADF4350 Evaluation Board 13/05 to 08/06 Measuring Signals 06/06 to 21/06

Questions? Thank you…