Larg. Week, April 2002, Electronics Meeting1 Progress Report On Electronics Activities in Paris Bertrand Laforge LPNHE Paris CNRS/IN2P3 – Universités Paris 6&7 SPAC system status Controller Board Development Status Prospects SPAC system status Controller Board Development Status Prospects

2 SPAC System Status Spac Slaves : 5 SPAC3 ASICs received and tested : OK ! ~100 SPAC3 ASICs will arrive in Paris this week  should be available for FE boards quite quickly Irradiation Test in preparation (test by early june ): 4 ASICs (3 receivers, 1 repeater) will be fully tested 1 monitoring VME board has been developed for the test 6 ASICs will be put on another card Test Bench developed in C, C++ is fully functional  implementation of a GUI is ongoing

3 SPAC System Status Implementation of Spac Bus under study : Simulation using SpecctraQuest underway… Spac Bus Optical Link Mockup built in Paris : radhard solution found and tested. - Emitter : FEB optical link ok ! - Receiver : Rad-hard Cern RX40 + Fermionics Pin diode ok !  Packaging RX40 + pin diode to be studied for assembly on controller e.g. Barrel FEC bus : Question : Can we drive 22 SPACs as needed on the EMEC Special ½ crate ? Can it be tested at BNL ?

4 Test Set up at LPNHE CERN RX4010H116 TTC tree SPAC3 Test Boards

5 Controller Board Design Status TTC connectors : –USB mini-B/mini-B : ok ! –Halogen free cables will have to be produced (Molex) Rad-tol TTC fan-out : –Fan out based on a tree of 10H116 chips had been tested : ok ! 10H116 qualified and ordered (thanks to Nevis) Optical reception of TTC signal : –Studies still underway : receiver used for SPAC does not work at 160 MHz. Other solutions under investigation

6 Details on TTC connectors and cables On Board : USB mini-B receptacle (SMT) version Molex 54819b ( Cables : Halogen free, L=40 cm mini-B/mini-B custom cable based on ref. Molex On the Controller, mini-B receptable installed by pair using either : PCB with 3.2 mm local thickness with standard mini-B connector Standard 2.4 mm standard PCB + thread whirled cable connectors

7 Connectors on the controller Optical Part for TTC and SPAC Up to 22 TTC conectors (by pairs on the 2 faces) TTC connector pin out on boards 1 = GND 2 = (D-)TTC- 3 = (D+)TTC+ 4 = not connected 5 = GND + shield connected to GND

8 Prospects A lot of work has been done : –Test of SPAC3 ASICs : ok ! –Test Bench set up for Irradiation test of SPAC ASICs : ok ! –Rad Hard Optical solution tested and qualified for the SPAC : ok ! –TTC connectors (USB mini-B) and TTC Fan out on the controller : ok ! Every SPAC system aspects is under control except : –Irradiation tests for SPAC3 Asic to be performed –Bus loading for EMEC Special crate is critical Controller Board design is achieved except : –Optical reception of the TTC signal still under study –Final design of the board (placement and routing) : easy !