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The Beetle Reference Manual - chip version 1.3, 1.4 and 1.5
| Autores principales: | , |
|---|---|
| Lenguaje: | eng |
| Publicado: |
2006
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/1000429 |
| _version_ | 1780911570901008384 |
|---|---|
| author | Löchner, S Schmelling, M |
| author_facet | Löchner, S Schmelling, M |
| author_sort | Löchner, S |
| collection | CERN |
| description | |
| id | cern-1000429 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2006 |
| record_format | invenio |
| spelling | cern-10004292019-09-30T06:29:59Zhttp://cds.cern.ch/record/1000429engLöchner, SSchmelling, MThe Beetle Reference Manual - chip version 1.3, 1.4 and 1.5Detectors and Experimental TechniquesThis paper details the electrical specifications, operating conditions and port definitions of the readout chips Beetle 1.3, 1.4 and 1.5. The chip is developed for the LHCb experiment and fulfils the requirements of the silicon vertex detector (VELO, PUS), the silicon tracker and the RICH detectors in case of multi-anode photomultiplier readout. It integrates 128 channels with low-noise charge-sensitive preamplifiers and shapers. The pulse shape can be chosen such that it complies with LHCb specifications: a peaking time of 25 ns with a remainder of the peak voltage after 25 ns of less than 30%. A comparator per channel with configurable polarity provides a binary signal. Four adjacent comparator channels are being ORed and brought off chip via LVDS ports. Either the shaper or comparator output is sampled with the LHC bunch-crossing frequency of 40 MHz into an analogue pipeline. This ring buffer has a programmable latency of max. 160 sampling intervals and an integrated derandomising buffer of 16 stages. For analogue readout data is multiplexed with up to 40 MHz onto 1 or 4 ports. A binary readout mode operates at up to 80 MHz output rate on two ports. Current drivers bring the serialised data off chip. The chip can accept trigger rates up to 1.1 MHz to perform a dead-timeless readout within 900 ns per trigger. For t estab ility and calibration purposes, a charge injector with adjustable pulse height is implemented. The bias settings and various other parameters can beLHCb-2005-105CERN-LHCb-2005-105oai:cds.cern.ch:10004292006-11-23 |
| spellingShingle | Detectors and Experimental Techniques Löchner, S Schmelling, M The Beetle Reference Manual - chip version 1.3, 1.4 and 1.5 |
| title | The Beetle Reference Manual - chip version 1.3, 1.4 and 1.5 |
| title_full | The Beetle Reference Manual - chip version 1.3, 1.4 and 1.5 |
| title_fullStr | The Beetle Reference Manual - chip version 1.3, 1.4 and 1.5 |
| title_full_unstemmed | The Beetle Reference Manual - chip version 1.3, 1.4 and 1.5 |
| title_short | The Beetle Reference Manual - chip version 1.3, 1.4 and 1.5 |
| title_sort | beetle reference manual - chip version 1.3, 1.4 and 1.5 |
| topic | Detectors and Experimental Techniques |
| url | http://cds.cern.ch/record/1000429 |
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