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Wiki source code of MTCA ADCs

Version 3.1 by sendels on 2019-05-09 14:55
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1 === General info ===
2
3 \\
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:FLASHUSER.OPIS ADC related things]]
9
10 \\
11
12 === Our cards ===
13
14 \\
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>>url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/10-0494_C_ADQ412_datasheet.pdf||shape="rect"]] ( [[new version>>url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/10-0494-adq412_datasheet.pdf||shape="rect"]], [[sampling rates table>>url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/Clocking_AppNote.pdf||shape="rect"]])
20 The cards are connected via Patch panels to the Experimental endstations.
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22 \\
23
24 * **NOTE: between ADC and Patch panel we have installed an [[EMP protector>>url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/EMP_protector.pdf||shape="rect"]] 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 amplifiers to either amplify small signals or to decouple setups which may deliver voltage peaks fro the ADCs. The available ADCs are:
27 ** 20 dB, 1 GHz, 50 Ohm, ( [[Minicircuits ZFL-1000LN+>>url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/ZFL-1000LN.pdf||shape="rect"]])
28 ** 10 dB, 1.8 GHz, 50 Ohm, ( [[Becker und Hickl, ACA-1-10-I>>url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/ACA-amilifier.pdf||shape="rect"]])
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30 \\
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32 \\
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34 * [[Here is a detailed evaluation >>url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/Output_behaviour_of_Mini-Circuits_Amplifier.pdf||shape="rect"]]of the 2 amplifiers , their linearity and influence on the signal broadening for different input signals*
35 * And the test of the [[Philips scientific Model 6954>>url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/Model_6954_Amplifier_Report.pdf||shape="rect"]]
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37 \\
38
39 \\
40
41 (% class="wrapped" %)
42 |(((
43 Impedance AC
44 )))|(((
45 50 OHM
46 )))
47 |(((
48 Input voltage range
49 )))|=(((
50 800 mV pp!!!!!!!!!!!!!!!!
51 )))
52 |(((
53 Digitizer resolution
54 )))|(((
55 12 bit
56 )))
57
58 4 CHANNELS MODE
59
60 (% class="wrapped" %)
61 |(((
62 Sampling rate
63 )))|(((
64 2
65 )))|(((
66 GSPS
67 )))
68 |(((
69 Analog bandwidth
70 )))|(((
71 2
72 )))|(((
73 GHz
74 )))
75
76 2 CHANNELS MODE
77
78 (% class="wrapped" %)
79 |(((
80 Sampling rate
81 )))|(((
82 4
83 )))|(((
84 GSPS
85 )))
86 |(((
87 Analog bandwidth
88 )))|(((
89 1.3
90 )))|(((
91 GHz
92 )))
93
94 \\
95
96 ===== ADC and DOOCS / DAQ =====
97
98 The HDF5 names for the ADC traces are depending on the beamline :
99 \\PG Beamline:
100 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH00/TD{{/code}}
101 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH01/TD{{/code}}
102 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH02/TD{{/code}}
103 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH03/TD{{/code}}
104
105 BL Beamlines:
106 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH00/TD{{/code}}
107 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH01/TD{{/code}}
108 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH02/TD{{/code}}
109 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH03/TD{{/code}}
110 \\{{code language="none"}}/FL1/Experiment/BL2/ADQ412 GHz ADC/CH00/TD{{/code}}
111 {{code language="none"}}/FL1/Experiment/BL2/ADQ412 GHz ADC/CH01/TD{{/code}}
112 \\{{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH02/TD{{/code}}
113 {{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH03/TD{{/code}}
114
115 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00/CH00.TD  or CH00.DAQ.TD{{/code}}
116 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 ...
117 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00{{/code}}
118
119 in addition there are also additional parameters saved like:
120
121 * sample frequency (in MHz)
122 * error (state)
123 * offset
124
125 \\
126
127 ==== Struck SIS8300-L2D ====
128
129 There is one in each of the MTCAs in the hall: MTCA-EXP1 at PG/BL1, the other at BL2 and BL3.
130
131 They are 16 bit, 10 channel, 125 MS/s ADCs.
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133 \\
134
135 * [[User Manual SIS8300-L2 ADC ACM>>url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/sis8300l2-m-x009-1-v101.pdf||shape="rect"]]
136 * [[User Manual SIS8900 RTM>>url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/sis8900-m-1-1-v104.pdf||shape="rect"]]
137
138 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).
139
140 Here is a trace of the first signal, a 1 MHz trigger connected from the x2timer board in the same MTCA:
141
142 [[image:url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/adc_mhz.jpg||alt="adc_mhz.jpg" width="550" height="500"]]
143
144 \\
145
146 ==== Using the Struck SIS8300-L2D to detect only integrated values of pulses ====
147
148 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:
149
150 * Peak height: from what signal on (incounts) is the signal to be counted as peak
151 * 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
152 * 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.
153
154 [[image:url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/pulse_energy_server.jpg||alt="pulse_energy_server.jpg" width="400" height="300"]]
155
156 \\
157
158 * [[Model_6954_Amplifier_Report.pdf>>url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/Model_6954_Amplifier_Report.pdf||shape="rect"]]: Model_6954_Amplifier_Report.pdf