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Published byCharles Mathews Modified over 8 years ago
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1 Etat d’avancement de la conception des Blocs FEI4 CPPM, Université de la méditerranée, CNRS/IN2P3, Marseille, France
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2 16/11/2009 Réunion Electronique pour SLHC Outline Introduction Memory block for the global configuration : CNFGREG Temperature sensor : TEMPSENS 10 bit Global ADC : GADC Variants : Pixel configuration Low Power discriminator Additional blocs ?
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3 16/11/2009 Réunion Electronique pour SLHC CNFGMEM Layout : DRC and LVS ok Post layout simulations in order to estimate the influence of long wires capacitances on the time response. Buffers are ok Output amplifier not needed Next step : From the review : Only one error out for the whole bloc (instead of 1 per word) Voltage shifters: 1.2 V to 1.5 V Schematic ok and layout have to be done Error In pull up for the first stage have to be done Verilog modelling for the memory cell Corners simulations Estimate timing parameters for write and read cycles 1 week of work to freeze the design 16 rows by 32 colomns All inputs and outputs pins are on the top side Block dimensions : 900µm × 360µm 5:32 decoder Memory cell
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4 16/11/2009 Réunion Electronique pour SLHC TEMPSENS The schematic is ok Layout : DRC and LVS not yet completed Next step : Finalise the layout Post layout simulations in order to estimate the influence of long wires resistances on the current value Corners simulations 3-4 weeks of work to finalize the design
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5 16/11/2009 Réunion Electronique pour SLHC GADC Schematic The comparator not yet figed Global simulation : Ok Layout DAC and MUX ok SAR control logic : in progress Comparator : have to be done Next step : SAR design Comparator design Corner and mismatch simulations for the GADC Global layout Post layout simulations 2 weeks for the SAR 2 weeks for the comparator 2 weeks for the Global layout
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6 16/11/2009 Réunion Electronique pour SLHC Pixel Configuration Layout in progress 2 weeks to finalize the bloc
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7 16/11/2009 Réunion Electronique pour SLHC Low power discriminator Layout ok To be done when the pixel array is fully designed Additional Vdddiscri … 1 week to implement the bloc in the pixel
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8 16/11/2009 Réunion Electronique pour SLHC Planning 16-2023-2730-47-1114-18 CNFGMEMMohsine TEMPSENSFabrice GDAC SARLaurent CompMohsine GlobalLaurent Pixel confDenis
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9 16/11/2009 Réunion Electronique pour SLHC Additional blocs ? An analog MUX and output analog buffer : The MUX should have 32 analog voltage inputs 5-bit address input single analog output with a buffer capable of driving a passive oscilloscope probe.
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10 16/11/2009 Réunion Electronique pour SLHC Additional blocs ? Temperature dependent current source (or voltage source if easier). The temperature dependence should have a programmable slope (4 bits or more). In the case of a V source the slope should be adjustable between +5mV/C and -5mV/C In the case of a current source between +1%/C and -1%/C An op-amp is already designed and available Temperature-stable voltage and current references are also available
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11 16/11/2009 Réunion Electronique pour SLHC Additional blocs ? Temperature dependent current source (or voltage source if easier). The temperature dependence should have a programmable slope (4 bits or more). In the case of a V source the slope should be adjustable between +5mV/C and -5mV/C In the case of a current source between +1%/C and -1%/C An op-amp is already designed and available Temperature-stable voltage and current references are also available
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