... | @@ -2,29 +2,30 @@ |
... | @@ -2,29 +2,30 @@ |
|
|
|
|
|
## Project description
|
|
## Project description
|
|
|
|
|
|
The goal of the project is to create a high resolution TDC and fine
|
|
The goal of the project is to create a high-resolution TDC and fine
|
|
delays generator only using open sources softwares. We hope that the
|
|
delay generator using only open source software and hardware. We hope
|
|
community will help us and will give us advices and tips concerning the
|
|
this design can become the basis of experimentation and collaboration in
|
|
production of such electronic device. All information concerning its
|
|
a wider community.
|
|
design will be published on the wiki to transform it in a wealth of
|
|
|
|
engineering knowledge.
|
|
Several time interval measurement techniques will be explored in this
|
|
|
|
project. One important family of solutions feeds input pulses into
|
|
Several time measuring technics will be explored during the project. We
|
|
shaping filters followed by an ADC. By time-shifting the acquired
|
|
can almost mention the use of ramp generators or damped sinewaves.
|
|
waveforms in software, and maximizing correlation between two channels,
|
|
|
|
one can figure out the time interval between two pulses.
|
|
Firstly, we plan to make a data acquisition board. To optimise the
|
|
|
|
resolution, the transistion from the analog world to the digital one has
|
|
Firstly, we plan to make a data acquisition system. To optimise the
|
|
to be as clear as possible. It is on this board that the different time
|
|
precision, the transition from the analog to the digital world has to be
|
|
|
|
as clean as possible. It is on this system that the different time
|
|
measuring elements will be added.
|
|
measuring elements will be added.
|
|
|
|
|
|
The "brain" of the board is a
|
|
The "brain" of the system is a
|
|
[MicroZed](http://zedboard.org/product/microzed) FPGA prototyping board.
|
|
[MicroZed](http://zedboard.org/product/microzed) FPGA prototyping board.
|
|
We designed the ADC board as a carrier card for the MicroZed.
|
|
We designed an ADC board as a carrier card for the MicroZed.
|
|
|
|
|
|
The ADC used are the
|
|
The ADCs used are the
|
|
[AD9645](http://www.analog.com/media/en/technical-documentation/data-sheets/AD9645.pdf)
|
|
[AD9645](http://www.analog.com/media/en/technical-documentation/data-sheets/AD9645.pdf)
|
|
from Analog
|
|
from Analog
|
|
Device.
|
|
Devices.
|
|
|
|
|
|
[![](/uploads/7b81b19cb74505cc8d1b8dbaf67cd95f/boardLayout3D-small.png)](/uploads/7b384d04724ae67b92475dc77367c98f/boardLayout3D-big.png)
|
|
[![](/uploads/7b81b19cb74505cc8d1b8dbaf67cd95f/boardLayout3D-small.png)](/uploads/7b384d04724ae67b92475dc77367c98f/boardLayout3D-big.png)
|
|
|
|
|
... | @@ -43,7 +44,7 @@ Device. |
... | @@ -43,7 +44,7 @@ Device. |
|
|
|
|
|
## Contacts
|
|
## Contacts
|
|
|
|
|
|
### General question about project
|
|
### General questions about the project
|
|
|
|
|
|
- [Nicolas Boucquey](mailto:nicolas.boucquey@cern.ch) - CERN
|
|
- [Nicolas Boucquey](mailto:nicolas.boucquey@cern.ch) - CERN
|
|
|
|
|
... | | ... | |