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TTC UPGRADE FOLLOW-UP Sophie Baron , Angel Monera Martinez LECC 2006

TTC UPGRADE FOLLOW-UP Sophie Baron , Angel Monera Martinez LECC 2006. TTC upgrade principle Transmitter Crate Receiver Crate Analogue versus Digital First results Status Conclusion. TTC UPGRADE [principle]. Tx Crate with AB/RF standard Tx modules. Optical splitter. Rx Crate

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TTC UPGRADE FOLLOW-UP Sophie Baron , Angel Monera Martinez LECC 2006

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  1. TTC UPGRADEFOLLOW-UPSophie Baron, Angel Monera MartinezLECC 2006 LECC 2006, VALENCIA

  2. TTC upgrade principle • Transmitter Crate • Receiver Crate • Analogue versus Digital • First results • Status • Conclusion LECC 2006, VALENCIA

  3. TTC UPGRADE [principle] Tx Crate with AB/RF standard Tx modules Optical splitter Rx Crate with AB/RF standard Rx modules & a TTC specific adjustment module • RD12 system for TTC backbone obsolete • Few spares • Design not documented • No 24/24 support • Upgrade necessary • Using up-to-date components • Find a solution for 24/24 support (-> AB/RF piquet) condition: use the same Tx and Rx modules as the AB/RF group SR4 CCR Experiments LECC 2006, VALENCIA

  4. TTC upgrade principle • Transmitter Crate • Receiver Crate • Analogue versus Digital • First results • Status • Conclusion LECC 2006, VALENCIA

  5. TRANSMITTER CRATE [Overview] • VME 6U RF-compliant crate (J2 not standard VME) • Provided by AB/RF • Installed in the SR4 (where the RF is generated) • Controlled, supported and maintained by AB/RF • Filled with transmitter VME modules used by the AB/RF group to transmit their own signals • Optical components were already identified, but • It turned out that the VME modules were not designed yet • Design made by PH/ESS for the AB/RF group • PH/ESS proposed to AB/RF a second version of these modules with cheaper components (which could fulfill the requirements of 70% of their equipment) • One laser chip per signal to be transmitted • 3 Bunch Clocks (ring1, ring2, reference) • 2 Orbit signals (ring1, ring2) • Optical Transmitter boards for BC and Orbit transmission to experiments • 2 versions being currently studied Optical Transmitter boards for RF internal use Crate Controller LECC 2006, VALENCIA

  6. TTC upgrade principle • Transmitter Crate • Receiver Crate • Analog versus Digital • First results • Status • Conclusion LECC 2006, VALENCIA

  7. RECEIVER CRATE [Overview] • 6U VME 64x crate • Installed in each experiment (instead of the TTCmi) • One receiver per signal to be transmitted • 3 Bunch Clocks (ring1, ring2, reference) • 2 Orbit signals (ring1, ring2) • Receiver boards supported and maintained by AB/RF • 2 different versions being studied now (one ‘Analog’ and one ‘Digital’) • Other modules & equipment supported by the experiments, maintained by PH/ESS • RF2TTC module • Designed by PH/ESS • Supported by the experiments • Maintained by PH/ESS-TTC team • Multiplexing and adjustment of the BC and Orbit signals • AB/RF receiver modules • Designed by PH/ESS • Supported & maintained by AB/RF • 2/3 Rx per VME module (depending on the versions) • Optional Fanout Module • Designed by PH/MIC • Supported by the experiments • Maintained by PH/ESS-TTC team LECC 2006, VALENCIA

  8. RECEIVER CRATE [Crate Controller] • Crate Controller • ALICE: • Standard VP315/317 from CCT • ATLAS: • Standard VP110 from CCT • CMS: • CAEN PCI-controller card A2818 + V2718 VME-PCI optical bridge • LHCb: • CAEN V1718 VME-USB bridge OR OR LECC 2006, VALENCIA

  9. RECEIVER CRATE [RF_Rx – ‘Analogue’ version] • Design done by PH/ESS (A. Monera) • The corresponding Transmitter module has been designed by PH/ESS as well • Specifications written by the AB/RF group • Tx and Rx components selected by the AB/RF group • Initially to transmit the LHC RF (400MHz continuous sinewave) • 6U VME modules (VME 64x and VME 64 compatible) • 2 receivers per module • Internal registers monitoring the optical power levels • Heat sink required (..) to keep the Miteq Rx and Tx at about 35 C Deg. EDA-1332 A. Monera Martinez See details in following section LECC 2006, VALENCIA

  10. RECEIVER CRATE [RF_Rx – ‘Digital’ version] • Proposed by PH/ESS to AB/RF to replace the Analogue version where a cheaper laser could do the job. • Typically 400MHz or 40MHz clocks, Orbits, etc… • If accepted by AB/RF, would be supported and maintained by them as well. • Design done by PH/ESS (A. Monera) • The corresponding Transmitter module has been designed by PH/ESS as well • 6U VME (VME 64x and VME 64 compatible) • 3 types of optical receivers according to various requirements • Various types of receivers can be plugged with minor hardware adjustments • Allows us to compare their performances in real conditions • Internal registers • Signal detect (R) • Frequency detect for each channel (Read Only) • Threshold level adjustment (R/W) • Firmware very close to the Analogue version EDA-1382 A. Monera Martinez See details in following section LECC 2006, VALENCIA

  11. RECEIVER CRATE [RF2TTC] • RF2TTC • Inputs • 3 BC inputs (SMA or Lemo00) (RF signals, BC1, BC2, BCref) • 2 Orbit inputs (RF signals, Orb1, Orb2) • 1 BST input (optical) • Outputs • 4 ECL BC outputs (BC1, BC2, BCref, MainBC) • AC coupled • 4 NIM copies • 3 ECL Orbit outputs (Orb1, Orb2, MainOrb) • DC/AC coupled • Synchronised respectively to BC1, BC2, MainBC • 3 NIM copies • Adjustments & Features • Each BC input has: • Threshold adjustment • Multiplexing with internal source • Fine delay • QPLL • Each Orbit input has: • Threshold adjustment • Fine delay for the synchronisation • Multiplexing with internally generated orbit (adjustable period) • Adjustable length and polarity • Coarse delay adjustment (in 25ns steps) • Fine delay of the output EDA-1357 S. Baron LECC 2006, VALENCIA

  12. RECEIVER CRATE [BC & Orbit fanout] • BC & Orbit Fanout • Dual 1:18 ECL fanout • 4 NIM outputs per input (ALICE requirement) • 1 status led per input (presence of clock / orbit). • Maximum density • The 2 halves can be daisy chained. EDA-1240 C. Sigaud LECC 2006, VALENCIA

  13. TTC upgrade principle • Transmitter Crate • Receiver Crate • Analogue versus Digital • First results • Status • Conclusion LECC 2006, VALENCIA

  14. ANALOGUE VERSUS DIGITAL [Modules] ANALOGUE SET Designed for RF transmission (sinewave) Phase noise <5ps (pk-pk!). (more info) 2 Optical links per module Optical power budget 10-15dB DIGITAL SET 40MHz & 5ns pulses transmission Jitter <30ps rms 3 Optical links per module Optical power Budget 25dB Various Tx and Rx can be installed OCP STX03-300MHz 350 $ .8kCHF 4kCHF or OCP STX24-1.5GHz 600 $ or 1kCHF 5kCHF Photon PT5343-300MHz 250 $ - Obsolete RF_Tx_D EDMS Ref: EDA-01380 OCP SRX03-300MHz 200 $ OCP SRX24-1.5GHz 300 $ Truelight TRR-1B43-00-150MHz 8$ RF_Tx_D EDMS Ref: EDA-01382 RF_Tx_A EDMS Ref: EDA-01331 RF_Rx_A EDMS Ref: EDA-01332 LECC 2006, VALENCIA

  15. ANALOG VERSUS DIGITAL [Systems] SR4 Tx CCR .8kCHF 4kCHF X6 = 34k Rx 1.2 kCHF per link 7 kCHF per link 1kCHF 5kCHF Rx Rx Rx Rx Rx EXP SR4 Tx CCR Rx Tx X6 = 204k Rx Rx Rx Rx Rx EXP LECC 2006, VALENCIA

  16. ANALOGUE VERSUS DIGITAL [Production] ANALOGUE SET Users: AB/RF for continuous sinewave transmission Quantities: about 15 links DIGITAL SET Users: TTC (BC & Orbit) & AB/RF & AB/BT with: OCP STX03 TRR-1B43 AB/RF for 400MHz with: OCP STX24 OCP SRX24 Quantities: about 80 links Awaiting for AB/RF final agreement LECC 2006, VALENCIA

  17. TTC upgrade principle • Transmitter Crate • Receiver Crate • Analogue versus Digital • First results • Status • Conclusion LECC 2006, VALENCIA

  18. FIRST RESULTS [From CCR to Build.4 in Meyrin] TTC RD12 (LHCrx) 40.078MHz Cy2cy jitter=29ps rms Digital module (TRR receiver) 40.078MHz Cy2cy jitter=27ps rms Skew jitter / Rd12 = 36 ps rms Analog module* 40.078MHz Cy2cy jitter=18ps rms Skew jitter / Rd12 = 35 ps rms RD12 TX TTCmi RX CRATE (Analog and Digital modules) CCR MEYRIN TX CRATE *: for the analog module, the setup is: Tx -> Rx -> Tx -> Rx To match the real conditions, where a transceiver at the CCR will be required LECC 2006, VALENCIA

  19. FIRST RESULTS [From CCR to North Area - setup] RD12 TX scintillators Recovered Clock & Orbit 25ns structured test beam TTCmi Photo Multipliers & coincidence RX CRATE TX CRATE Trigger LECROY SDA6000 XXL NORTH AREA CMS facility Digital Rx Clock CCR Analog Rx Clock 25ns test beam • Scope triggered about 90 times per spill • Delays measured between • the trigger falling edge • and the closest rising edge • of the 3 different clocks • Thanks to Jan Troska for having made this setup available LECC 2006, VALENCIA

  20. FIRST RESULTS [From CCR to North Area - results] Analog Clock TTCrd12 Clock Digital Clock => Histogram shape given by the high beam jitter vs the clock LECC 2006, VALENCIA

  21. TTC upgrade principle • Transmitter Crate • Receiver Crate • Analogue versus Digital • First results • Status • Conclusion LECC 2006, VALENCIA

  22. STATUS • HARDWARE • INFRASTRUCTURE • SOFTWARE LECC 2006, VALENCIA

  23. TTC upgrade principle • Transmitter Crate • Receiver Crate • Analog versus Digital • First results • Status • Conclusion LECC 2006, VALENCIA

  24. CONCLUSION • Transmission Schemes • Analogue version validated (at, say, 90%) • 5 prototype boards available (= 10 links) • Digital version in course of validation • 5 prototype boards available (= up to 30 links) • Extended tests to be done in the TTC lab • Being tested by all the AB potential users right now • The AB/RF group needs to give its agreement to have these modules as standard modules • Mandatory, as they will do the on-call support • RF2TTC prototype just arrived at CERN • System test to begin next week, with the following criteria • Jitter test • System stability and reliability • Characterization (temperature, optical power range,..) • Production Readiness Review to be done in November • Can be preceded by tests done by experiments if they request it • Production to begin only after a green light from AB/RF group and experiments • 3 RF2TTC modules per experiment + 3 at the TTC lab + PCB and components for 10 more spares • 3 RF_Rx (in the digital case) per experiment + 3 in the TTC lab, spares (pool of spares maintained by the AB/RF, + extra batch of critical components) LECC 2006, VALENCIA

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