1. US TileCal Meeting at UT Arlington
Status Update
Readout Electronics
J. Pilcher
University of Chicago

2. 3-in-1 STATUS 3-in-1 Cards 10,600 being produced
Plus spare semiconductors for 900 cards (8.5%)
9856 needed to equip calorimeter
Extra 8% for spares, test setups, waste, etc.
9924 burnt-in, tested, shipped to CERN
Enough for full drawer assembly
Minor repairs needed on the rest
Several hundred diagnosed and flagged for technician
Repairs and testing proceeding on “as available” basis (summer students)
5/13/02
J. Pilcher

3. Mother Board Status Mother Boards 277 sets being produced (4+1 boards)
Plus spare semiconductors for 22 sets (8%)
256 sets needed to equip calorimeter
Extra 21 sets (8%) for spares, test setups, etc.
185 sets burnt-in, tested, shipped to CERN
Minor issues with Mezzanine board used for control
Yield of working boards lower than expected (85%)
Bad boards being diagnosed for repair (~40 boards)
How to handle sets used for radiation tests (10)
Use as is? Change semiconductors?
5/13/02
J. Pilcher

4. Interface Board Status
Optical Interface board
Receives and distributes TTC signal
Transmits data to RODs
One per electronics drawer
17 pre-production boards burnt-in, tested, delivered to CERN
All parts on hand and ready to ship for production of 264 boards
Spare semiconductors for 21 boards
5/13/02
J. Pilcher

5. Interface Board Status
Work waiting for signed contract from Radiantech
Sent 8 weeks ago
Being reviewed by “lawyers”
Cost in Taiwan is $19.6K
Next closest vendor is Altron (US) at $27.7K
5/13/02
J. Pilcher

6. Electronics Planning & Coordination
Kelby at CERN this week for TTC review
Clarify operation of TTCrx chip
Weekly phone conferences on drawer production
Need 6 drawers for June calibration run
Working group on ROD specifications
Valencia has production responsibility
How to adapt LAr ROD design?
Appears to be little experience in Valencia
5/13/02
J. Pilcher

7. Electronics Planning & Coordination
Receipt of LVL1 trigger signals
Ensure desired treatment and processing
Low voltage power supplies
To be located in “fingers”
As of March, no production design
Radiation tolerance issues
Space and power issues
Cost likely high
Prague group seems to have responsibility now
George is a consultant
5/13/02
J. Pilcher

8. Electronics Planning & Coordination
Low voltage power supplies
≥2 years before production units in hand after design is frozen
Radiation tests, PRR, parts procurement, assembly, burn–in, testing
Stand-alone control and testing in pit
System issues to resolve
Multiple TTC domains
Coordination of CIS, Laser, Cs, Min-bias calibrations
Monitoring plans?
5/13/02
J. Pilcher