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Fabrication & Assembly of Opto-Rx12 Modules for CMS-Preshower

Fabrication & Assembly of Opto-Rx12 Modules for CMS-Preshower. S. K. Lalwani Electronics Division Bhabha Atomic Research Centre Mumbai – 400 085. Preshower in CMS Structure. Preshower Disc ( 1 of 4 ). ~2.49m. MB TYPE2. MB TYPE0. K Chip. MB TYPE1. MB TYPE3.

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Fabrication & Assembly of Opto-Rx12 Modules for CMS-Preshower

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  1. Fabrication & Assembly of Opto-Rx12 Modules for CMS-Preshower S. K. Lalwani Electronics Division Bhabha Atomic Research Centre Mumbai – 400 085

  2. Preshower in CMS Structure

  3. Preshower Disc ( 1 of 4 ) ~2.49m MB TYPE2 MB TYPE0 K Chip MB TYPE1 MB TYPE3 Total 124 x 4 = 496 Mother boards

  4. K chip K chip K chip K chip K chip K chip K chip K chip Front End Readout ASICs ES-DCC Front End Control ASICs Role of Opto-Rx12 Module Preshower Readout & Control Architecture To Local DAQ Optical ReadoutPath Spy Memory SubdetectorEvent Builder Data Reduction Algorythms, Formatting Optical Receivers ( S-Link) 4288 PACE ADC 1208 @ 800Mbps TTCrx GOH 496 (Gigabit Opto-Hybrid) Slow Control & Fast Commands I2C Re Clk LV1 Control Path TTCrx CCU I V I2C CCU DCU CCU CLK & T1 logic CCU CCU FastTiming CCU Optoelectronics processor System Motherboard Link Controller TTCvimodule DOH (Digital Opto-Hybrid) FEC Module Slow Control

  5. Role of Opto-RX12 • Data Rate : 1208 Optical data lines @ 800Mbps each = 1Tbps • Only 2% occupancy (useful data) • Opto-Rx12 Module : • Receives data from 12 optical lines • Implements Data Reduction Algorythms in an FPGA • Several Opto-Rx12 modules would be plugged into a VME-based readout system, which will send the reduced data (Events) to CMS DAQ.

  6. Opto-Rx12 Revision 1 75mm 115mm Connector for 12 Fibre Ribbon 5 PMC connectors (280 bit I/O bus) 12 channel Optical Receiver (NGK-POR10M12SFP) FPGA with embedded De-serializers (Altera 1SGX40GF1020)

  7. Opto-Rx12 Evaluation Setup Pattern Generator - Generates 12 optical serial streams • Host Board • Provides space for Opto-Rx12 plug-in • USB interface

  8. Opto-Rx12 Evaluation Setup

  9. ECIL’s Quotation to CERN • Unit Price : 1100 CHF for Quantity of 150 Nos. • Includes: • Fabrication, Assembly and Testing of Opto-Rx12 • Cost of Components except Optical Receiver (NGK’s POR10M12SFP) • CERN must provide: • Optical Receiver Chips • Complete Test Setup including boards (2 sets), firmware, software and documentation

  10. Challanges • 14 layer PCB • BGA soldering ( > 1000 balls) • Testing/ debugging (?)

  11. Current Status: Opto-Rx12 Module Revision 3 Bigger FPGA (Altera EP2SGX60EF1152C5N)

  12. Changes in OptoRx Rev 3 Linear Regulators Linear Regulator replaced by Switching Regulator on an adaptor PCB

  13. Opto-Rx12 Test Setup (Final ?) Host Board Switches Opto-Tx8 Module Opto-Rx12 Rev. 3 Optical Splitter 8 12 LEDs USB Port

  14. Many Thanks

  15. OptoRx Module Revision 1

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