A programmable time alignment scheme for detector signals from the upgraded muon spectrometer at the ATLAS experiment

作者：Wang Jinhong^*; Guan Liang; Chapman J; Zhou Bing; Zhu Junjie

来源：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2017, 871: 8-12.

DOI：10.1016/j.nima.2017.07.039

• Digital integrated circuits
• Clock
• Application specific integrated circuits
• ATLAS

We present a programmable time alignment scheme used in an ASIC for the ATLAS forward muon trigger development. The scheme utilizes regenerated clocks with programmable phases to compensate for the timing offsets introduced by different detector trace lengths. Each ASIC used in the design has 104 input channels with delay compensation circuitry providing steps of similar to 3 ns and a full range of 25 ns for each channel. Detailed implementation of the scheme including majority logic to suppress single-event effects is presented. The scheme is flexible and fully synthesizable. The approach is adaptable to other applications with similar phase shifting requirements. In addition, the design is resource efficient and is suitable for cost-effective digital implementation with a large number of channels.

• 出版日期2017-11-1