MiniDAQ1: A Compact Data Acquisition System for GBT Readout over 10G Ethernet at LHCb

The LHCb experiment at CERN is undergoing a significant upgrade in anticipation of the increased luminosity that will be delivered by the LHC during Run 3 (starting in 2021). In order to allow efficient event selection in the new operating regime, the upgraded LHCb experiment will have to operate in continuous readout mode and deliver all 40 MHz of particle collisions directly to the software trigger. In addition to a completely new readout system, the front-end electronics for most sub-detectors are also to be redesigned in order to meet the necessary performance. Most front-end communication is based on a common ~5 Gb/s radiation-hard protocol developed at CERN, called GBT.