Mainz 2004 – scientific programme

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T: Teilchenphysik

T 206: Trigger und DAQ II

T 206.7: Talk

Tuesday, March 30, 2004, 15:30–15:45, HS VII

A Proposal Of A Single Chip Surface Detector Trigger Based On Altera Cyclone Family — •Zbigniew Szadkowski and Karl-Heinz Kampert — Bergische University Wuppertal

The new Altera PLD family Cyclone chips allows significantly simplifying the construction of the surface detector trigger as well as decreasing the total costs and improving parameters. In comparison with currently approved ACEX chips, Cyclone chips contain much bigger internal memory (a possibility of an implementation of the slow memory inside the PLD chip or an extension of fast buffers). 1.5 V supplies the core (reduction of power consumption). The single chip allows implementing interlaced DMA mode and avoiding problems with chips synchronization. The registered performance is on the level 130-170 MHz. Such a high internal speed allows increasing the sampling frequency, which could improve a time resolution of the trigger. More resources allow implementing new kind of triggers based upon Power Density, Power Spectrum Density or Charge over Threshold. Megacore library offers DSP routines as FFT, which may be useful to recognize type of events.