1. Ken Wyllie, CERN Tracker ASIC, 5th July 2012 1 Overview of LHCb Upgrade Electronics Thanks for the invitation to Krakow!

2. Ken Wyllie, CERN Tracker ASIC, 5th July 2012 2Ken Wyllie, CERN CBM Workshop, January 2012 2 Electronics architecture Ken Wyllie, CERN ACES, March 9th 2011 2 HLT Current HLT++ Upgrade 1MHz event rate 40MHz event rate Readout Supervisor L0 Hardware Trigger Readout Supervisor Low-level Trigger Front-end electronics: transmit data from every 25ns BX

3. Ken Wyllie, CERN Tracker ASIC, 5th July 2012 3 Typical Implementation TELL 40 TELL ECS/TFC

4. Ken Wyllie, CERN Tracker ASIC, 5th July 2012 4 Zoom on Implementation

5. Ken Wyllie, CERN Tracker ASIC, 5th July 2012 5 Reminder of FE specifications LHCb note http://cdsweb.cern.ch/record/1340939/files/LHCb-PUB-2011-011.pdf TFC note http://cdsweb.cern.ch/record/1424363/files/LHCb-PUB-2012-001.pdf Both notes list requirements that must be satisfied by front-end chips! Examples: Bunch counter Resets Non-zero suppressed mode Etc etc etc

6. Ken Wyllie, CERN Tracker ASIC, 5th July 2012 6 Interfaces on FE ASIC GBT Eports for data: SLVS @ 80, 160, or 320 Mb/s Each has input, output, clock Phased clocks (8):SLVS, each can be 40, 80, 160 or 320 MHz GBT-SCA Single-ended CMOS (1.2-2.5V compatible) I2C is the favourite protocol Timing/Fast Control (from GBTX) SLVS bus of maximum 24 bits Power Rad-tol DC-DC convertors are best option Are linear regulators needed in ASIC?

7. Ken Wyllie, CERN Tracker ASIC, 5th July 2012 7 Reviews 1.Conceptual Design Review (part of system review) Chip architecture, functions, compatible with system, happy clients 2. Design Review 3.Production Readiness Review WHEN ???????

8. Ken Wyllie, CERN Tracker ASIC, 5th July 2012 8 General comments Try to share (eg ATLAS):voltage regulator? bandgap Borrow blocks: Eport from GBT i2c slave PLL …….. Simulations of detector occupancy Good Monte Carlo at L = 2 x 10 33 Where are bottle-necks in design? What safety margin? Testability + features for detector commissioning Hybrid design? Should run in parallel with ASIC design

9. Ken Wyllie, CERN Tracker ASIC, 5th July 2012 9 Next meeting 26 th July, general electronics meeting followed by session dedicated to Tracker Electronics issues http://lhcb-elec.web.cern.ch/lhcb-elec/html/upgrade.htm Mailing list: Go to simba.cern.ch, search for lhcb-upgrade-electronics