Testing elements in a fast communication channel

100GB/s Midterm PresentationMidterm Presentation

Spring 2010Spring 2010

Developers: Hanna Alam and Yousef BadranDevelopers: Hanna Alam and Yousef Badran

Project supervised by: Mr. Yossi HipshProject 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

TimelineWe’ve created a grant timeline in order to keep track of our work

Estimated timeline:

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

Questions?

Thank you…