FD DAQ Multiplicity
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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)
- 2 internal switches (one for RCE, one for SSP) 10Gbps?
2 APA can make 6144 Mbps
There are 75 racks per 10kt.
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.
- protoDUNE Numbers
