Changes for page MTCA ADCs

Last modified by sndueste on 2024/07/08 09:50
From version 1.1
edited by sendels
on 2019/05/09 14:53
Change comment: There is no comment for this version
To version 10.1
edited by sndueste
on 2019/11/11 16:59
Change comment: There is no comment for this version

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Author
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1 -XWiki.sendels
1 +XWiki.sndueste
Content
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1 +Content:
2 +
3 +
4 +
5 +{{toc/}}
6 +
7 +----
8 +
9 += General info =
10 +
11 +* [[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"]]
12 +* [[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"]]
13 +* [[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"]]
14 +* [[ a collection of usefull things related to the OPIS ADCs>>doc:FLASH.OPIS ADC related things]]
15 +
16 +\\
17 +
18 += Our ADC cards =
19 +
20 +== GHz ADCs: SP-Devices ADQ412AC ==
21 +
22 +We have ADQ412AC-4G-MTCA digitizer cards for the experiment crates (Exp1, Exp2 and FL2Exp1):
23 +[[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]])
24 +The cards are connected via Patch panels to the Experimental endstations and can be operated with a jddd panel:
25 +
26 +[[image:attach:image2019-10-21_15-21-23.png||width="800"]]
27 +
28 +\\
29 +
30 +\\
31 +
32 +* **NOTE: between ADC and Patch panel we have installed an [[EMP protector>>attach:EMP_protector.pdf]] and an additional 1dB attenuator**
33 +* 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"]]
34 +
35 +\\
36 +
37 +(% class="wrapped" %)
38 +|(((
39 +Impedance AC
40 +)))|(((
41 +50 OHM
42 +)))
43 +|(((
44 +Input voltage range
45 +)))|=(((
46 +800 mV pp!!!!!!!!!!!!!!!!
47 +)))
48 +|(((
49 +Digitizer resolution
50 +)))|(((
51 +12 bit
52 +)))
53 +
54 +4 CHANNELS MODE
55 +
56 +(% class="wrapped" %)
57 +|(((
58 +Sampling rate
59 +)))|(((
60 +2 *
61 +)))|(((
62 +GSPS
63 +)))
64 +|(((
65 +Analog bandwidth
66 +)))|(((
67 +2
68 +)))|(((
69 +GHz
70 +)))
71 +
72 +2 CHANNELS MODE
73 +
74 +(% class="wrapped" %)
75 +|(((
76 +Sampling rate
77 +)))|(((
78 +4 *
79 +)))|(((
80 +GSPS
81 +)))
82 +|(((
83 +Analog bandwidth
84 +)))|(((
85 +1.3
86 +)))|(((
87 +GHz
88 +)))
89 +
90 + ~* 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.
91 +
92 +\\
93 +
94 +===== ADC and DOOCS / DAQ =====
95 +
96 +The HDF5 names for the ADC traces are depending on the beamline :
97 +\\PG Beamline:
98 +{{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH00/TD{{/code}}
99 +{{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH01/TD{{/code}}
100 +{{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH02/TD{{/code}}
101 +{{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH03/TD{{/code}}
102 +
103 +BL Beamlines:
104 +{{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH00/TD{{/code}}
105 +{{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH01/TD{{/code}}
106 +{{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH02/TD{{/code}}
107 +{{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH03/TD{{/code}}
108 +\\{{code language="none"}}/FL1/Experiment/BL2/ADQ412 GHz ADC/CH00/TD{{/code}}
109 +{{code language="none"}}/FL1/Experiment/BL2/ADQ412 GHz ADC/CH01/TD{{/code}}
110 +\\{{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH02/TD{{/code}}
111 +{{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH03/TD{{/code}}
112 +
113 +DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00/CH00.TD  or CH00.DAQ.TD{{/code}}
114 +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 ...
115 +DAQ channel: {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00{{/code}}
116 +
117 +in addition there are also additional parameters saved like:
118 +
119 +* sample frequency (in MHz)
120 +* error (state)
121 +* offset
122 +
123 +\\
124 +
125 +== Amplifiers for the GHZ ADCs ==
126 +
127 +* **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.
128 +* The available ADCs 5x, 10x, 20 x 50x and 100x
129 +* The ADCs can be borrowed from Markus Braune
130 +* 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]]
131 +
132 +\\
133 +
134 +== 108 MHz ADCs:  Struck SIS8300-L2D ==
135 +
136 +There is one in each of the MTCAs in the hall: MTCA-EXP1 at PG/BL1, the other at BL2 and BL3.
137 +
138 +They are 16 bit, 10 channel, 125 MS/s ADCs.
139 +
140 +\\
141 +
142 +* [[User Manual SIS8300-L2 ADC ACM>>attach:sis8300l2-m-x009-1-v101.pdf]]
143 +* [[User Manual SIS8900 RTM>>attach:sis8900-m-1-1-v104.pdf]]
144 +
145 +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).
146 +
147 +Here is a trace of the first signal, a 1 MHz trigger connected from the x2timer board in the same MTCA:
148 +
149 +[[~[~[image:url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/adc_mhz.jpg~|~|alt="adc_mhz.jpg" width="550" height="500"~]~]>>attach:adc_mhz.jpg]]
150 +
151 +\\
152 +
153 +== Pulse energy server: Using the Struck SIS8300-L2D to detect only integrated values of pulses ==
154 +
155 +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:
156 +
157 +* Peak height: from what signal on (incounts) is the signal to be counted as peak
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 +[[~[~[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]]
162 +
163 +\\