Changes for page MTCA ADCs
Last modified by sndueste on 2024/07/08 09:50
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... ... @@ -1,186 +1,0 @@ 1 -Content: 2 - 3 - 4 - 5 -{{toc minLevel="2"/}} 6 - 7 ----- 8 - 9 -= Our ADC cards = 10 - 11 -== GHz ADCs: SP-Devices ADQ412AC == 12 - 13 -We have ADQ412AC-4G-MTCA digitizer cards for the experiment crates (Exp1, Exp2 and FL2Exp1): 14 -[[ADQ412_datasheet.pdf>>attach:10-0494_C_ADQ412_datasheet.pdf]] ( [[new version>>attach:10-0494-adq412_datasheet.pdf]], [[sampling rates table>>attach:Clocking_AppNote.pdf]]) 15 -The cards are connected via Patch panels to the Experimental endstations and can be operated with a jddd panel: 16 - 17 -[[image:attach:image2019-10-21_15-21-23.png||width="800"]] 18 - 19 -\\ 20 - 21 -\\ 22 - 23 -* **NOTE: between ADC and Patch panel we have installed an [[EMP protector>>attach:EMP_protector.pdf]] and an additional 1dB attenuator** 24 -* for the influence of the Patch cable and the EMP protector see also [[this logbook entry~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:http://ttfinfo.desy.de/ExpHallelog/show.jsp?dir=/2016/27/08.07&pos=2016-07-08T17:41:07||shape="rect"]] 25 - 26 -\\ 27 - 28 -(% class="wrapped" %) 29 -|((( 30 -Impedance AC 31 -)))|((( 32 -50 OHM 33 -))) 34 -|((( 35 -Input voltage range 36 -)))|=((( 37 -800 mV pp!!!!!!!!!!!!!!!! 38 -))) 39 -|((( 40 -Digitizer resolution 41 -)))|((( 42 -12 bit 43 -))) 44 - 45 -4 CHANNELS MODE 46 - 47 -(% class="wrapped" %) 48 -|((( 49 -Sampling rate 50 -)))|((( 51 -2 * 52 -)))|((( 53 -GSPS 54 -))) 55 -|((( 56 -Analog bandwidth 57 -)))|((( 58 -2 59 -)))|((( 60 -GHz 61 -))) 62 - 63 -2 CHANNELS MODE 64 - 65 -(% class="wrapped" %) 66 -|((( 67 -Sampling rate 68 -)))|((( 69 -4 * 70 -)))|((( 71 -GSPS 72 -))) 73 -|((( 74 -Analog bandwidth 75 -)))|((( 76 -1.3 77 -)))|((( 78 -GHz 79 -))) 80 - 81 - ~* note that the sample rate is NOT locked to the FLASH repetition rate ! Thus there is a not integer number of samples between FLASH pulses. The sample rate also differs slightly from ADC card to ADC card. The rough spacing is **1993.846** samples between 2 pulses at 1 MHz for details ask the local contact. 82 - 83 -\\ 84 - 85 -===== ADC and DOOCS / DAQ ===== 86 - 87 -The HDF5 names for the ADC traces are depending on the beamline : 88 -\\PG Beamline: 89 -{{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH00/TD{{/code}} 90 -{{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH01/TD{{/code}} 91 -{{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH02/TD{{/code}} 92 -{{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH03/TD{{/code}} 93 - 94 -BL Beamlines: 95 -{{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH00/TD{{/code}} 96 -{{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH01/TD{{/code}} 97 -{{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH02/TD{{/code}} 98 -{{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH03/TD{{/code}} 99 -\\{{code language="none"}}/FL1/Experiment/BL2/ADQ412 GHz ADC/CH00/TD{{/code}} 100 -{{code language="none"}}/FL1/Experiment/BL2/ADQ412 GHz ADC/CH01/TD{{/code}} 101 -\\{{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH02/TD{{/code}} 102 -{{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH03/TD{{/code}} 103 - 104 -and at FLASH2 105 - 106 - 107 -\\\\\\\\{{code language="none"}}FL24:/FL2/Experiment/MTCA-EXP1/ADQ412 GHz ADC/CH00/TD/FL2/Experiment/MTCA-EXP1/ADQ412 GHz ADC/CH01/TD/FL2/Experiment/MTCA-EXP1/ADQ412 GHz ADC/CH02/TD/FL2/Experiment/MTCA-EXP1/ADQ412 GHz ADC/CH03/TD{{/code}} 108 - 109 -\\ 110 - 111 -DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00/CH00.TD or CH00.DAQ.TD{{/code}} 112 -here the {{code language="none"}}CH00.TD{{/code}} is the full ADC trace as it is sampled ( typically several 100.000 samples per pulse train) while the {{code language="none"}}CH00.DAQ.TD{{/code}} trace only has the number of samples which are sent to the DAQ OR if //grouping// is actvated the {{code language="none"}}CH00.DAQ.TD{{/code}} contins only the grouped spectra. To read the ADC trace with an online analysis program the {{code language="none"}}CH00.DAQ.TD{{/code}} is preferable to use ... 113 -DAQ channel: {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00{{/code}} 114 - 115 -in addition there are also additional parameters saved like: 116 - 117 -* sample frequency (in MHz) 118 -* error (state) 119 -* offset 120 - 121 -\\ 122 - 123 -== Amplifiers for the GHZ ADCs == 124 - 125 -* **we can offer [[ Phillips scientific Model 6954>>attach:6954ds.pdf]] amplifiers** to either amplify small signals or to decouple setups which may deliver voltage peaks fro the ADCs. 126 -* The available ADCs 5x, 10x, 20 x 50x and 100x 127 -* The ADCs can be borrowed from Markus Braune 128 -* The Amplifiers fot perfectly to the dynamic range of the GHz ADCs - here a [[ test of the Phillips scientific amplifier>>attach:Model_6954_Amplifier_Report.pdf]] 129 - 130 -\\ 131 - 132 -== 108 MHz ADCs: Struck SIS8300-L2D == 133 - 134 -There is one in each of the MTCAs in the hall: MTCA-EXP1 at PG/BL1, the other at BL2 and BL3. 135 - 136 -They are 16 bit, 10 channel, 125 MS/s ADCs. 137 - 138 -\\ 139 - 140 -* [[User Manual SIS8300-L2 ADC ACM>>attach:sis8300l2-m-x009-1-v101.pdf]] 141 -* [[User Manual SIS8900 RTM>>attach:sis8900-m-1-1-v104.pdf]] 142 - 143 -50 Ohm input impedance, -1 V,...,+1 V default input range, analog signals can be routed to AC and DC input stage. The coupling is DC via op-amp (switching to AC transformer involves resoldering of SMD solder bridges). 144 - 145 -Here is a trace of the first signal, a 1 MHz trigger connected from the x2timer board in the same MTCA: 146 - 147 -[[~[~[image:url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/adc_mhz.jpg~|~|alt="adc_mhz.jpg" width="550" height="500"~]~]>>attach:adc_mhz.jpg]] 148 - 149 -\\ 150 - 151 -== Pulse energy server: Using the Struck SIS8300-L2D to detect only integrated values of pulses == 152 - 153 -FS-LA (Falko Peters) programmed a pulse detection server that automatically detects peaks in the signal and integrates the samples around the peak. 154 - 155 -Things to set: 156 - 157 -* Min peak height: threshold fro which on some signal is considered to be a peak. The actual peak is then determined as the maximum of the counts after the threshold 158 -* pre and post peak integration time: how much ns to be integrated before and after the peak sample that are taken into account for the peak 159 -* pre and post peak noise time: before and after the samples that are taken for the actual signal these samples are used as background ( they also can be used to define the "deadtime" of the detector before it searches for new peaks. 160 - 161 -\\ 162 - 163 -[[~[~[image:url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/pulse_energy_server.jpg~|~|alt="pulse_energy_server.jpg" height="400"~]~]>>attach:pulse_energy_server.jpg]] [[image:attach:image2019-11-18_17-9-7.png||height="400"]] 164 - 165 -\\ 166 - 167 - jddd server panel Definition of the parameters 168 - 169 -\\ 170 - 171 -\\ 172 - 173 -\\ 174 - 175 -= Detailed stuff = 176 - 177 -* [[ADQ412 server description~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:https://ttfinfo.desy.de/FLASHWiki/Wiki.jsp?page=SPdevicesDMA%20ADQ||shape="rect"]] 178 -* [[ a collection of usefull things related to the OPIS ADCs>>doc:FLASH.OPIS ADC related things]] 179 - 180 -\\ 181 - 182 -\\ 183 - 184 -\\ 185 - 186 -\\