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Study of LVDS Serial Links for the ATLAS Level-1 Calorimeter Trigger

By Anagnostou Bright-Thomas Garvey, G. Anagnostou, P. Bright-thomas, J. Garvey, R. Staley, W. Stokes, S. Talbot, P. Watkins, A. Watson, K. Meier, U. Pfeiffer, V. Schatz, K. Schmitt, C. Schumacher, B. Stelzer, O. Stelzer, P. Stock, E. Ulses, K. Jayan, V. J. O. Perera, A. A. Shah and T. P. Shah


This paper presents an evaluation of the proposed LVDS serial data transmission scheme for the ATLAS level-1 calorimeter trigger. Approximately 7000 high-bandwidth links are required to carry data into the level-1 algorithmic processors from the Preprocessor crates. National Semiconductor's Bus LVDS serialiser/deserialiser chipsets offer low power consumption at low cost and synchronous data transmission with minimal latency. Test systems have been built to measure real-time bit-error rates using pseudo-random binary sequences. Results show that acceptable error rates better than 10 ;13 per link can be achieved through compact cable connector assemblies over distances up to 20 m

Year: 2008
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