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Wiki source code of MTCA ADCs

Version 5.1 by sndueste on 2019/08/22 15:52
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1 === General info ===
2
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4
5 * [[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"]]
6 * [[more ADC server descriptions~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:https://ttfinfo.desy.de/DOOCSWiki/Wiki.jsp#section-C_2B_2B+Server+Interface-D_ADCscope?page=C%2B%2B%20Server%20Interface||shape="rect"]]
7 * [[Description of the DAQ properties related to the ADCs~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:https://ttfinfo.desy.de/DOOCSWiki/Wiki.jsp#section-C_2B_2B+Server+Interface-DaqfedConfiguration.?page=C%2B%2B%20Server%20Interface||shape="rect"]]
8 * [[ a collection of usefull things related to the OPIS ADCs>>doc:FLASH.OPIS ADC related things]]
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11
12 === Our ADC cards ===
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15
16 ==== SP-Devices ADQ412AC ====
17
18 We have ADQ412AC-4G-MTCA digitizer cards for the experiment crates (Exp1, Exp2 and FL2Exp1):
19 [[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]])
20 The cards are connected via Patch panels to the Experimental endstations.
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23
24 * **NOTE: between ADC and Patch panel we have installed an [[EMP protector>>attach:EMP_protector.pdf]] and an additional 1dB attenuator**
25 * 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"]]
26 * 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. The available ADCs
27 * 5x, 10x, 20 x 50x and 100x
28 * And the  [[ test of the Phillips scientific amplifier>>attach:Model_6954_Amplifier_Report.pdf]]
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31
32 (% class="wrapped" %)
33 |(((
34 Impedance AC
35 )))|(((
36 50 OHM
37 )))
38 |(((
39 Input voltage range
40 )))|=(((
41 800 mV pp!!!!!!!!!!!!!!!!
42 )))
43 |(((
44 Digitizer resolution
45 )))|(((
46 12 bit
47 )))
48
49 4 CHANNELS MODE
50
51 (% class="wrapped" %)
52 |(((
53 Sampling rate
54 )))|(((
55 2
56 )))|(((
57 GSPS
58 )))
59 |(((
60 Analog bandwidth
61 )))|(((
62 2
63 )))|(((
64 GHz
65 )))
66
67 2 CHANNELS MODE
68
69 (% class="wrapped" %)
70 |(((
71 Sampling rate
72 )))|(((
73 4
74 )))|(((
75 GSPS
76 )))
77 |(((
78 Analog bandwidth
79 )))|(((
80 1.3
81 )))|(((
82 GHz
83 )))
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86
87 ===== ADC and DOOCS / DAQ =====
88
89 The HDF5 names for the ADC traces are depending on the beamline :
90 \\PG Beamline:
91 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH00/TD{{/code}}
92 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH01/TD{{/code}}
93 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH02/TD{{/code}}
94 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH03/TD{{/code}}
95
96 BL Beamlines:
97 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH00/TD{{/code}}
98 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH01/TD{{/code}}
99 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH02/TD{{/code}}
100 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH03/TD{{/code}}
101 \\{{code language="none"}}/FL1/Experiment/BL2/ADQ412 GHz ADC/CH00/TD{{/code}}
102 {{code language="none"}}/FL1/Experiment/BL2/ADQ412 GHz ADC/CH01/TD{{/code}}
103 \\{{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH02/TD{{/code}}
104 {{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH03/TD{{/code}}
105
106 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00/CH00.TD  or CH00.DAQ.TD{{/code}}
107 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 ...
108 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00{{/code}}
109
110 in addition there are also additional parameters saved like:
111
112 * sample frequency (in MHz)
113 * error (state)
114 * offset
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117
118 ==== Struck SIS8300-L2D ====
119
120 There is one in each of the MTCAs in the hall: MTCA-EXP1 at PG/BL1, the other at BL2 and BL3.
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122 They are 16 bit, 10 channel, 125 MS/s ADCs.
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125
126 * [[User Manual SIS8300-L2 ADC ACM>>attach:sis8300l2-m-x009-1-v101.pdf]]
127 * [[User Manual SIS8900 RTM>>attach:sis8900-m-1-1-v104.pdf]]
128
129 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).
130
131 Here is a trace of the first signal, a 1 MHz trigger connected from the x2timer board in the same MTCA:
132
133 [[~[~[image:url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/adc_mhz.jpg~|~|alt="adc_mhz.jpg" width="550" height="500"~]~]>>attach:adc_mhz.jpg]]
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136
137 ==== Using the Struck SIS8300-L2D to detect only integrated values of pulses ====
138
139 FS-LA (Falko Peters) programmed a pulse detection server that automatically detects peaks in the signel and integrates the samples around the peak. <\br> things to set:
140
141 * Peak height: from what signal on (incounts) is the signal to be counted as peak
142 * 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
143 * 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.
144
145 [[~[~[image:url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/pulse_energy_server.jpg~|~|alt="pulse_energy_server.jpg" width="400" height="300"~]~]>>attach:pulse_energy_server.jpg]]
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