Wiki source code of MTCA ADCs

Version 7.1 by sndueste on 2019/10/02 15:28
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1 Content:
2
3
4
5 {{toc/}}
6
7 = General info =
8
9 * [[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"]]
10 * [[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"]]
11 * [[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"]]
12 * [[ a collection of usefull things related to the OPIS ADCs>>doc:FLASH.OPIS ADC related things]]
13
14 \\
15
16 = Our ADC cards =
17
18 == GHz ADCs: SP-Devices ADQ412AC ==
19
20 We have ADQ412AC-4G-MTCA digitizer cards for the experiment crates (Exp1, Exp2 and FL2Exp1):
21 [[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]])
22 The cards are connected via Patch panels to the Experimental endstations.
23
24 \\
25
26 * **NOTE: between ADC and Patch panel we have installed an [[EMP protector>>attach:EMP_protector.pdf]] and an additional 1dB attenuator**
27 * 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"]]
28
29 \\
30
31 (% class="wrapped" %)
32 |(((
33 Impedance AC
34 )))|(((
35 50 OHM
36 )))
37 |(((
38 Input voltage range
39 )))|=(((
40 800 mV pp!!!!!!!!!!!!!!!!
41 )))
42 |(((
43 Digitizer resolution
44 )))|(((
45 12 bit
46 )))
47
48 4 CHANNELS MODE
49
50 (% class="wrapped" %)
51 |(((
52 Sampling rate
53 )))|(((
54 2
55 )))|(((
56 GSPS
57 )))
58 |(((
59 Analog bandwidth
60 )))|(((
61 2
62 )))|(((
63 GHz
64 )))
65
66 2 CHANNELS MODE
67
68 (% class="wrapped" %)
69 |(((
70 Sampling rate
71 )))|(((
72 4
73 )))|(((
74 GSPS
75 )))
76 |(((
77 Analog bandwidth
78 )))|(((
79 1.3
80 )))|(((
81 GHz
82 )))
83
84 \\
85
86 ===== ADC and DOOCS / DAQ =====
87
88 The HDF5 names for the ADC traces are depending on the beamline :
89 \\PG Beamline:
90 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH00/TD{{/code}}
91 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH01/TD{{/code}}
92 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH02/TD{{/code}}
93 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH03/TD{{/code}}
94
95 BL Beamlines:
96 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH00/TD{{/code}}
97 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH01/TD{{/code}}
98 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH02/TD{{/code}}
99 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH03/TD{{/code}}
100 \\{{code language="none"}}/FL1/Experiment/BL2/ADQ412 GHz ADC/CH00/TD{{/code}}
101 {{code language="none"}}/FL1/Experiment/BL2/ADQ412 GHz ADC/CH01/TD{{/code}}
102 \\{{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH02/TD{{/code}}
103 {{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH03/TD{{/code}}
104
105 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00/CH00.TD  or CH00.DAQ.TD{{/code}}
106 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 ...
107 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00{{/code}}
108
109 in addition there are also additional parameters saved like:
110
111 * sample frequency (in MHz)
112 * error (state)
113 * offset
114
115 \\
116
117 == Amplifiers for the GHZ ADCs ==
118
119 * **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.
120 * The available ADCs 5x, 10x, 20 x 50x and 100x
121 * The ADCs can be borrowed from Markus Braune
122 * 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]]
123
124 \\
125
126 == 108 MHz ADCs:  Struck SIS8300-L2D ==
127
128 There is one in each of the MTCAs in the hall: MTCA-EXP1 at PG/BL1, the other at BL2 and BL3.
129
130 They are 16 bit, 10 channel, 125 MS/s ADCs.
131
132 \\
133
134 * [[User Manual SIS8300-L2 ADC ACM>>attach:sis8300l2-m-x009-1-v101.pdf]]
135 * [[User Manual SIS8900 RTM>>attach:sis8900-m-1-1-v104.pdf]]
136
137 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).
138
139 Here is a trace of the first signal, a 1 MHz trigger connected from the x2timer board in the same MTCA:
140
141 [[~[~[image:url:http://hasfweb.desy.de/pub/Setup/MtcaAdc/adc_mhz.jpg~|~|alt="adc_mhz.jpg" width="550" height="500"~]~]>>attach:adc_mhz.jpg]]
142
143 \\
144
145 == Pulse energy server: Using the Struck SIS8300-L2D to detect only integrated values of pulses ==
146
147 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:
148
149 * Peak height: from what signal on (incounts) is the signal to be counted as peak
150 * 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
151 * 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.
152
153 [[~[~[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]]
154
155 \\