Highlights
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25 ps LSB
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21 bit resolution
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52 µs full scale range
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ECL/LVDS Input Signals
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5 ns Double Hit Resolution
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Trigger Matching and Continuous Storage acquisition modes
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Leading and/or Trailing Edge detection
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32 k x 32 bit output buffer
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MBLT, CBLT and 2eSST data transfer
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Multicast commands
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Geographical address supported
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Live Insertion
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Libraries, Demos (C and LabView) and Software tools for Windows and Linux
Overview
The CAEN Mod. VX1290A-2eSST is a 32 channel Multihit TDC, housed in a 1-unit wide VME64X 6U module. The unit features High Performance Time to Digital Converter chips developed by CERN.
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LSB is 25 ps (21 bit resolution, 52 µs FSR)
The module accepts both ECL and LVDS inputs. The channels can be enabled for the detection of hits rising/falling edges. For each channel there is a digital adjustment for the zero-ing of any offsets. The data acquisition can be programmed in “Events” (“Trigger Matching Mode”, with a programmable time window) or in “Continuous Storage Mode”. The module programming is performed via a microcontroller that implements a high-level user friendly interface. The VME interface allows the module to work in A24 and A32 addressing modes.
The board houses a 32 k x 32 bit deep Output Buffer, that can be readout via VME in a completely independent way from the acquisition itself.
The device supports MBLT, CBLT and 2eSST readout modes. Live insertion is also supported.
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Compare
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Image
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Name
|
Package
|
No. of Channels
|
Resolution (bit)
|
Type
|
Conversion Time (µs)
|
LSB (ps)
|
Full Scale Range (µs)
|
Input Type
|
Connectors
|
|
|
VX1190A-2ESST |
VME64X |
128 |
19 / 17 |
Multihit Digital TDC |
- |
100 / 200 / 800 |
52 / 104 |
ECL / LVDS |
Robinson Nugent Flat |
|
|
DT5203 |
Desktop |
64 |
26 |
Multihit Digital TDC |
- |
3.125 |
52 |
LVDS |
1 edge connector type HSEC8-170 |
|
|
V1290A-2ESST |
VME |
32 |
21 |
Multihit Digital TDC |
- |
25 |
52 |
ECL / LVDS |
Std. Flat |
|
|
V1290N-2ESST |
VME |
16 |
21 |
Multihit Digital TDC |
- |
25 |
52 |
NIM |
LEMO |
|
|
VX1290A-2ESST |
VME64X |
32 |
21 |
Multihit Digital TDC |
- |
25 |
52 |
ECL / LVDS |
Std. Flat |
|
|
V775N |
VME |
16 |
12 |
Analog TDC |
2.8 |
35 / 300 |
0.14 / 1.2 |
NIM |
LEMO |
|
|
A5203 |
Desktop |
64/128 |
26 |
Multihit Digital TDC |
- |
3.125 |
52 |
LVDS |
1 edge connector type HSEC8-170 |
|
|
V775 |
VME |
32 |
12 |
Analog TDC |
5.7 |
35 / 300 |
0.14 / 1.2 |
ECL |
Std. Flat |
|
|
VX1290N-2ESST |
VME64X |
16 |
21 |
Multihit Digital TDC |
- |
25 |
52 |
NIM |
LEMO |
|
|
V1190A-2ESST |
VME |
128 |
19 / 17 |
Multihit Digital TDC |
- |
100 / 200 / 800 |
52 / 104 |
ECL / LVDS |
Robinson Nugent Flat |
Technical Specifications
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Packaging |
6U-high, 1U-wide VME unit |
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Inputs |
32 ECL / LVDS inputs, 110 Ohm impedance |
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Double hit resolution |
5 ns |
|
Acquisition modes |
Trigger Matching Mode; Continuous Storage Mode |
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Built-in memory |
32 kwords deep Output Buffer |
|
LSB |
25 ps |
|
Dynamic Range |
52 μs |
|
RMS resolution (with compensation enabled) |
32 ps (typical) |
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Integral non linearity (with compensation enabled) |
< 2.5 LSB |
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Max. differential non linearity (with compensation diabled) |
< 3 LSB |
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Interchannel Isolation |
≤3 LSB |
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Offset spread |
<2 ns |
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EXT TRIGGER input |
Two LEMO 00 bridged connectors, NIM signal, 50 Ω |
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Double Trigger resolution |
75 ns |
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Clock source |
Internal (40 MHz) or External (con Control connector), dip switch selectable |
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Control inputs |
active-high, differential ECL input signals:
rising-edge active, differential ECL input signals:
|
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Control outputs |
differential ECL output signal: |
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Displays |
|
|
VME |
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