The research conducted in this experiment is primarily concerned with the study
and the development of serial links for transmitting data and signals with fixed latency and low jitter. These characteristics are required in the trigger and synchronization systems of Nuclear and High Energy Physics experiments and they are crucial in shaping the technologies used in this area.
Although the SerDes embedded in FPGAs do not directly provide the required characteristics in terms latency and jitter, our studies show that a different approach to the synchronization of the multiple clock domains present inside the circuitries may offer a fixed latency of transmission.
The research program also includes a systematic study of the effect of coding and
payload on the jitter transfer. We tested and compared coding schemes deployed in the
Agilent G-Link chip-set (CIMT), in the TTC system developed at CERN (Bi-Phase Mark) and scrambling proposed by the GBT research program, currently under development at CERN.
These codes were compared with the industry standard reference 8b10b,
to assess the advantages and disadvantages when transmitting specific types of payload.
Test results have been pubblished on IEEE Trans. on Nucl. Sci. and JINST