FD DAQ Multiplicity

Electronics

Cold electronics input to DAQ (LArTPC)

• 16 ch input to analog ASIC (FE + ADC), 8:1 digital MUX, 2 channel digital output
• 8 ASIC / analog mother board
• 8 analog mother boards / FEMB assembly
• 128 analog channels / FEMB assembly
• 1 digital ASIC, 16 channel input, 4:1 MUX, 4 channel output (each 1Gbps)
• 2Mhz at 12 bits is 24 Mbps
• 16ch*24Mbps*8MUX = 3072Mbps into digital ASIC, (up to 4Gbps out on 4 links)
• 20 FEMB assembly / APA
• 150 APA / 10kt
• 128:4 total channel MUX

DAQ

1 DAQ Rack holding/servicing

• 1 cryo flange
• 2 APA
• 2 COB (16 RCE)
• 1 BRC (Board reader computer) 3 NICs (RCE network, SSP network, detector network)
• 2 internal switches (one for RCE, one for SSP) 10Gbps?

2 APA can make 6144 Mbps

Refs

• Dune CDR Volume 4 figure 4.14 and 4.15
• Overview of Data Acquisition page 7 presentation by Giles Barr.
• LAr TPC DAQ page 12 presentation by Matt Graham.