The L0 Off Detector Electronics (ODE) for the LHCb muon spectrometer

The ODE board is the trigger L0 stage [1] of the muon detector trigger electronics.The board provides L0 trigger interface via 12 channels parallel optical link and DAQ interface via single optical link, using the GOL chips [2] as data serializer.A custom chip (SYNC) [3] receives and synchronizes logical channels signals [4] providing for the L0 buffers.The TTCrx chip [5] is used to receive the LHCb master clock and the control signals from TTC system.The board functionalities are controlled and monitored via an internal I 2 C serial bus.An ELMB board [6] provides the ECS interface.Each ODE manages 192 LVDS input channels at a constant rate of 40.08 MHz.