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Preliminary CSC Trigger Results Preliminary CSC Trigger Results from September Testbeamfrom September Testbeam

Preliminary CSC Trigger Results Preliminary CSC Trigger Results from September Testbeamfrom September Testbeam

CSC Endcap Muon and CSC Trigger Electronics groups

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Beam Test of 2 CSC’s at X5aBeam Test of 2 CSC’s at X5aBeam Test of 2 CSC’s at X5aBeam Test of 2 CSC’s at X5a

Front-end cards

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Goal: complete electronic chain test of data transmission from CSC front-end electronics to the Track-Finder trigger, all operating synchronously at the 40 MHz structured beam

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CSC Track Finder TriggerCSC Track Finder TriggerCSC Track Finder TriggerCSC Track Finder Trigger

Test 3 × 1.6 Gb/s optical link connections from CSC electronics

Uses TLK2501 chipset

Requires very stable reference clock for error-free operation

Home-built PLL clock patch added to clean incoming TTC clock for links, but TTC QPLL also tested

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TTC QPLL Mezzanine cardTTC QPLL Mezzanine cardTTC QPLL Mezzanine cardTTC QPLL Mezzanine card

Three made available to CSC group for testing at this month’s structured beam test

Provides stable clock signals at 40, 80, and 160 MHz

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BX Structure Seen by Track-FinderBX Structure Seen by Track-FinderBX Structure Seen by Track-FinderBX Structure Seen by Track-Finder

48 bx

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Test ResultsTest ResultsTest ResultsTest Results

Using home-built PLL solution, or newest TTC QPLL solution for 80 MHz clock:

• PLL’s lock to incoming machine clock• 40.078893 MHz

• no errors on optical links reported over many hours

Data successfully logged by both CSC DAQ and CSC Track-Finder readout

• Very preliminary inspection shows 95% exact agreement in data sent and received over optical links (15K events)

• The remaining 5% are likely OK as well, but the simple analysis must be refined to handle data on multiple BX

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Comparison of TF Data with DAQComparison of TF Data with DAQComparison of TF Data with DAQComparison of TF Data with DAQCSC Track-Finder DataCSC Data from DAQ

CSC 2CSC 1

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The Happy Track-Finder GroupThe Happy Track-Finder GroupThe Happy Track-Finder GroupThe Happy Track-Finder Group