TRD Electronics

1
TRD Status Meeting 27.5.2004

• MCM Test Results
• MCM Tester
• Integration (Norbert Herrmann)

Volker Lindenstruth Chair of Computer Science
Kirchhoff Institute for PhysicsUniversity
Heidelberg, Germany Phone [phone]
4303 Fax [phone] Email ti_at_kip.uni-heide
lberg.de WWW www.ti.uni-hd.de
2
All internally connected to PASA channels except
for 7 and 8
3
Internally connected to PASA
4
Internally connected to PASA
5
Internally connected to PASA
6
1,20 external (not connected) 7,8 may be bad
bonded (this was known)
7
Statistics

• From 20 chips
• 18 were successfully bonded
• 17 are good enough to communicate with them over
  the SCSN after glob-topping. The internal digital
  tests are OK.
• 5 of the 17 have some problem with the ADCs. The
  power consumption of the ADC was low (0.5mA)
  independent on the state of the ADC
• by 2 of them the ADCs work properly only with
  external reference voltage
• by 1 of them this could help to get the normal
  power consumption of the ADCs but not the normal
  operation
• by the 3 chips above the reference voltage was
  found to be very low.
• the rest 2 were already sent to Karlsruhe for
  soldering as board merger.
• Typically the currents are PASA 75-80 mA, ADC
  70-75 mA (on) and 5 mA (off).
• Maybe today(27.05) a new ROB will be ready with 5
  chips

8
MCM Tester status board layout started (placing
components)
9
MCM Tester status board layout started
(partially placing)
10
TRD Integration Schedule
Planning as of last status meeting . . . we
accumulated 1 month delay
Norbert Herrmann
11
TRD Integration Status
TRAP2 Readout board on prototype chamber (Ken)
Readout via ACEX card was
exercised initially. Reference
noise measurement with scope/labview installed.
LVDS link between TRAP and ACEX
card broke down. LVDS drivers replaced on
ACEX card LVDS drivers died on TRAP2 chip
No communication any more with selected TRAP
chip ? ground connection between PC and ROB
! No systematic noise measurement on ROB done
yet, ROB grounding scheme (and cooling) are open
issues. If new ROB with 5 MCMs from KA does not
work, try to activate other MCM on current ROB
( M.Gutfleisch) Trigger System
(Ken) Hardware VME-PC (CCT VP110), TTCvi, and
TTCvx available, DCS board with optical
coupler/TTCrx prepared, CORBO module (on Cern
pool waiting list) TTCoc (Fibers) ALICE
specs need to be confirmed. Software TTC
Driver incompatibilities (ATLAS vs. DATE) DCS
board needs programming
Norbert Herrmann