TGC Electronics StatusOsamu Sasaki 23 Dec. 2004 河口湖

SLB ASIC

PS-Board

H-pT Board

Star Switch

Sector Logic

Other boards

Procurement

2004　極み

TGC Electronics

DCS LCS

CPUDCS-PS

SLB ASIC (1)

• Bugs of Version 4 (May ’04) 痛恨の極み– Timing violation at memory WRITE cycle (from L1 Buffer to De-rand

omizer Buffer)• Any error does not appear when De-rand. Buffer is empty (no read-

out queue).• Between Address and WEB : 0.3ns timing violation is shown by th

e simulation, which is taking into account the wire length and the load after the layout.

– Overflow counter of De-rand. Buffer does not work.– The start number of L1ID shall be 0, not 1.

• Version 4-ECO (Oct. ’04) 唖然– Modification at gate layout level on CAD– Additional delay (10 buffers) to clock signals for the address counter.

• Improved, however the error couldn’t be fixed perfectly.• The additional delay (1.2 ns) is NOT enough.• Large input capacitance of WEB 0.25pF

– Skip a F/F for Overflow counter• The Overflow counter does work properly.

– The bug of L1ID was not touched.

SLB ASIC (2)

• Version 5 (Nov. ’04) 絶句– Modification from HDL level and improvement of timi

ng margin

– The bugs of Version 4 were fixed.

– However, DOES NOT work at 40 MHz, up to 30 MHz.• Serial-to-Parallel converters of read-out part (four 220-shift-re

gisters) limit the speed.

• A CLK signal from a buffer with lowest driving power drives 440 D-F/Fs of the S-P converters.

– Obsolete design compiler (2000 Synopsys) was used, with un-proper options.

– Careless check after the layout !

SLB ASIC (3)• Version 4-ECO2

– Further modification of Version 4-ECO– Modification at gate layout level on CAD– Additional delay (20 buffers : 2.4ns) to clock signals

for the address counter.– Buffers in front of each WEB input port of the memory– Margin of the timing between ADDRESS and WEB is

2.5 ns.– Simulation using the back-annotated Standard Delay

Format (SDF) file• Except for memory write cycle (modification at gate layout

level).• Read-out works at up to 70 MHz and Trigger Matrix up to 54

MHz.

– Submitted 29/Nov. and chips in Feb. ‘05

SLB ASIC Version 4-ECO2(delay and buffer)

SLB ASIC (4)

• Version 6– Modification of Version 5 from HDL level

– Design compiler (Rev. 2001 Synopsys) with proper option setting

– Each WEB port of the memories is driven by an individual buffer (BUF6).

– The numbers of fanouts for all signals are checked to be within reasonable numbers.

– Full simulation using the back-annotated Standard Delay Format (SDF) file.

• Except for INPUT BLOCK

• Margin of data write cycle in memories is larger than 1.8 ns.

• Read-out works at up to 69 MHz and Trigger Matrix up to 54 MHz.

– To be submitted in 2004. Chips in Feb.

– Mass-production takes two months. (April-May)

– Inspection takes one month.

PS-Board• 1344 PS-Boards and 100 Service Patch-Panel Boards are used

for the system.– 6 varieties of PS-Boards for TRIPLET PS-Pack

• PCBs of EWT0 will come in Dec.. Schematics of EWT1 finished.• FT1, EWT2, EST and FT0 by end of March

– 10 varieties of PS-Boards for DOUBLETS PS-Pack• Design by end of July

– 1 varieties for PS-Boards for EI/FI TGCs.• 9U, 160mm VME-like board in HSC crate.

– Universal PS-Boards were developed for Test Beam and Test Assembly. 24 PS-Boards are available.

– PS daughter boards were mass-produced.– Mass-production for Triplet

• Test of prototype boards by end of May.• PCBs in April-June.• Assembly in May-July.• Inspection in June-Aug.

H-pT Board and Star Switch Board

• H-pT Board (192 boards)– 3 varieties of boards (endcap wire, endcap strip and for

ward)• H-pT ASICs have been mass-produced.

– Forward H-pT Board was used at Test Beam.• Minor modification will be done.

– Designs for Endcap by end of March

• SSW Board (< 200 boards)– All Anti-fuse FPGAs

• Irradiation tests of the parts have completed.

– SSW are being debugged at KEK.• The SSW is working at up to 48 MHz. Comprehensive test wil

l follow.

Sector Logic and other boards

• 48 Sector Logic Boards for Endcap and 24 Sector Logic Boards for Forward– Design of the final version has started.

• 100 Service Patch-Panel Boards– To be ordered in Jan.

• Trigger module for commissioning– Substitute for H-pT and SL

– Cosmic-ray trigger for 1/12

– Schematics finished this week.

• Inspection boards for H-pT ASIC and SLB ASIC– Boards were assembled and being debugged.

Procurement• Parts of ladders for PS-Packs FIN.

– Except for long bars for Doublets

• Cases for PS-Boards and Service Patch-Panel– Ordered. All parts of cases come in March. To be Assembled with PS-

Boards and DCS Boards at CERN.

• CAT6 cables for PS-Boards to H-pT/SSW– Labeled at both ends– Tendering on 22 Dec.

• LV cables for Triplet– Cables from LV Distributor Boxes to PS-Boards– Labeled at both ends– To be ordered in Dec.

• LV Distributor Boxes– To be ordered in Jan.

• Electronics parts– Most of them were ordered and delivered.– FPGAs for SLs and OE/EO Tendering on 22 Dec.

2004

• 痛恨の極み– SLB ASICs

• 繰り返しで何度も使えない言葉

• 遺憾の極み– Collaboration

• within Japan• with/against Israel

• 感極まる– Wine

• 中村（よ）結婚おめでとう。