Femtosecond Precision via RF Backplane in MTCA Crates
Krzysztof Marek Czuba , Anna Łysiuk , Paweł Barmuta , Frank Ludwig , H. Schlarb , Tomasz Jeżyński , Tomasz Leśniak
AbstractModern accelerator control systems based on MTCA.4 platform require femtosecond synchronization of RTM cards containing analog front-end electronics for high-speed digital signal processing AMC cards. The main challenge in such system was to realize distribution of few tens of high-quality RF signals to and between RTM cards with high reliability. Usage of coaxial cables with RF connectors in relatively small area of RTM front panels lead to difficulties with fitting all cables and to ground loop problems. Cable based distribution significantly affected system reliability and was prone to errors during installation. A concept of RF Backplane was developed for MTCA.4 system to distribute high-precision clock, and RF phase reference signals together with managed high analog quality power supply to RTM cards. It also allows for world's first solution with hot-swap on RF signals. In this paper RF Backplane conception is described together with study on performance limits.
|Publication size in sheets||0.5|
|Book||Napieralski Andrzej (eds.): Proceedings of the 20th International Conference Mixed Design of Integrated Circuits and Systems MIXDES, 2013 , vol. CFP13MIX-PRT, 2013, USA, IEEE Xplore Digital Library, ISBN 978-83-63578-01-5, 625 p.|
|Keywords in English||LLRF MTCA.4 RF Backplane XFEL jitter|
|Score|| = 10.0, 23-09-2020, BookChapterMatConfByIndicator|
= 15.0, 23-09-2020, BookChapterMatConfByIndicator
|Publication indicators||= 1; = 6.0|
|Citation count*||6 (2020-06-17)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.