GOL/Aux Boards and Optical Links

Transcription

1 GOL/Aux Boards and Optical Links Dirk Wiedner, Physikalisches Institut der Universität Heidelberg Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 1

2 9 x FE-Box Optical link Overview 4 x OTIS TDC Data MHz digital GOL-Aux Board 1.6 Gbit/s optical O-RxCard 9 x MHz digital TELL1 GOL-Aux Board: Fiber 128 channel Data GOL serializer VCSEL 50/125 um 12 fiber ribbon O-RxCard 12 fiber Optical Receiver 12 deserializers Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 2

3 GOL-Auxiliary Board GOL 1.0 serializer for 128 straw channels QPLL clock filter TFC signal distribution I2C signal distribution LV-power regulators Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 3

4 Bit Error Rate Test Gigabit Optical Link: Counter Data MHz at GOL in 1.6 Gb/s optical transmission Deserialization, bit error check No Data error in 15 d Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 4

5 QPLL setup QPLL on GOL Auxiliary Board Clock from synthesizer 1040MHz, 100 Hz adj. TFC distribution QPLL connected to GOL + 4 TDC chips Clock Generator TTCvx TTCrm LVDS driver QPLL GOL/TDC Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 5

6 Clock Distribution Master Clock Clock at QPLL differential subtracted Clock after optical transmission Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 6

7 active or passive LVDS distribution mandatory active distribution: LVDS distribution Fast LVDS buffers rad hard? passive distribution: current division successfully tested Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 7

8 Power Regulators (1/2) +2.5V, +3V, -3V load Ohm positive regulators 300 mv oscillations 100 mv osc. after power cycle Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 8

9 Power Regulators (2/2) negative regulators up to 2V 6 to 25 khz three types tested 22 uf Tantal added: 24mV oscillations Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 9

10 Fiber Specifications 50/125 MM fibers MTP/MPO connectorized optical ribbon to trailer SMA VCSEL breakout from MTP/MTO to 12 LC/SMA Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 10

11 432 VCSEL diodes Fiber Cabling 9 single fibers into optical ribbon (5m) on frame patch panel 48 optical ribbons to trailer patch panel (70m) 48 ribbon fibers from trailer patch panel to O- RxCards/TELL1 extra (ribbon) fibers for TFC/ECS signals Radiation and CERN IS23 qualification done Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 11

12 O-RxCard 12 way optical Receiver commercial deserializers high density connector m o n i t o r SNAP12 spec. c o n t r o l LED O-RxCard QUARTZ 200 pin Samtec QTS power 200 pin Samtec QTS c o n n e c t o r c o n n e c t o r power Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 12

13 O-RxCard Prototypes produced 5 Cards produced BGA assembly done 3 Cards fully equipped Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 13

14 Migration of Optical receivers Agilent Emcore Infineon Paracer Picolight Zarlink Xanoptics Price 384 Euro 400 USD 674 Euro 300 USD 466 USD 483 USD 320 USD Availability? weeks? weeks? NO?? weeks? Used in LHCb Muon IT - IT/OT SNAP12 comp. DNC misplaced DNC misplaced Not SNAP12 Good DNC misplaced VPP is DNC? IF14-0 comp. Good VPP at K1, 2, 8, 9 Not SNAP12 Good Good Good? Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 14

15 Testing the O-RxCard Analog signal test (Zürich ST): analog signal -> ADC -> GOL -> O-RxCard -> Demux -> DACs -> oscilloscope Digital test: Pseudo Random Bit Loop back FPGA -> GOL -> O-RxCard -> FPGA BERT improved StratixS25-PCI card with adapter board/cable CERN/TELL1 setup Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 15

16 Test bench: AS-24-0 fan out to 1/10 connectors Fan out for all O- RxCard signals from 1/40 inch to 1/10 inch 1 AS24-0 per Samtec LVDS output test adapter in production Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 16

17 Digital counting data transmission Counter Data FPGA GOL-AUX O-RxCard Clock source: O-RxCard on board quartz external generator VSCEL ULM Photonics SMA (ST) Honeywell, LC Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 17

18 Summary GOL-Aux Prototype IF13-0 works with minor modifications Optical Fiber rad/is23 qualified and tested (ST) O-RxCards prototypes produced and tested Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 18

19 Analogue Beetle Data transmission for ST Beetle FADC GOL VCSEL Fiber O-RxCard Analog test bench Oscilloscope Review of the Outer Tracker FE Electronics 2004 Dirk Wiedner 19