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Last update 3 years 10 months by Dejardin
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sch
Draft1.log
I2C_sim.net.cir
I2C_sim.net.log
I2C_sim.net.op.raw
I2C_sim.net.raw
Input_stage.log
Input_stage.net
Input_stage.op.raw
Input_stage.raw
LMB-cache.lib
LMB.bak
LMB.kicad_pcb
LMB.kicad_pcb-bak
LMB.lib
LMB.net
LMB.pro
LMB.sch
LMB.sch-bak
My_Kicad
README.md
Si5319_1.png
Si5319_2.png
Si5319_3.png
Si5319_4.png
Si5319_5.png
Si5319_6.png
Si5319_7.png
Si5319_frequency_plan.png
Si5319_reg_map.txt
Si5324_1.png
Si5324_2.png
Si5324_3.png
Si5324_5.png
Si5324_6.png
Si5324_7.png
Si5324_8.png
Si5324_reg_map.txt
Si5324_results.png
Si5334_4.png
XC7K70T_676.pinout
fp-info-cache
place_footprints.log
replicate_layout.log
sym-lib-table
trigger_laser.sch
trigger_laser.sch-bak
README.md

LMB stands for Laser Monitoring Board. It is foreseen to drive and monitor the lasers at HL-LHC.

It will receive the 160 MHz clock and triggers info from lpGBT located on an embedded FE board (connected to a dedicated back end board).

  • There will be a 1280 MHz clock generator which will drive a fast 14 bits ADC to digitize a signal from a PIN diode to make an image of each laser pulse. The data of this ADC is splitted to 8 streams at 160 MHz using the compressed data format used for the barrel electronics.

  • There will be 7 LiTE-DTU to monitor the signals coming form the Spy-Box (11 PIN diodes (for 11 fibers) in parallel connected to a CATIA chip on each SpyBox submodule). Each Lite-DTU is streamed using the compressed data format used for the BArrel electronics.

  • All the streams are connected to the FE board to be sent to the Back-End electronics and thus be packed with the remaining part of the ECAL events.

  • The board generates triggers for lasers, DSO and others according to data received by the FE board. Each trigger can be tuned in delay.

  • There is also a connection by IPbus with a Gigabit ethernet port. For fast data monitoring and device programming

  • The board format is not yet fixed.

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