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Independent channel self-trigger
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Automatic adjustment of the acquisition window length to match the actual input pulse duration
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User defined minimum record length and pre-trigger for a complete event reconstruction
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Continuous signal baseline calculation for baseline drift compensation
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Programmable input delay to compensate for veto generation latency
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Channel Trigger Time Tag for event correlation
The Dynamic Acquisition Window (DPP-DAW) firmware has been developed to improve the zero suppression capabilities of the CAEN 724, 725 and 730 digitizer family and allow the user for trigger-less acquisition systems. By running the DPP-DAW firmware, each channel of the digitizer is able to self-trigger and acquire data independently from the others.
DPP-DAW can dynamically adjust the record length of every triggered event according to its Time Over Threshold to fit the actual duration of the input pulses. This prevents that a pulse larger than expected gets chopped because of a too short acquisition window. The user can set a minimum record length, a pre-trigger and a time of under-threshold to acquire those samples of interest before and after the Time Over Threshold. This allows for a full reconstruction of the digitized pulses.
DPP-DAW is able to continuously evaluate the signal baseline and refer a trigger threshold to its value. Therefore, the threshold can follow the baseline drift of the input signal without changing the trigger conditions of the data acquisition system.
DPP-DAW can accept an external veto to inhibit the data acquisition. A programmable input delay is available to compensate for the latency due to the veto generation if managed by an external logic unit.
CAEN provides open source demo software (DPP-DAW Demo Software) for a first approach to the DPP-DAW algorithm principles and basic control of the digitizer. The DPP-DAW Demo software can also control and acquire data from multiple synchronized boards.
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Family |
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Channels |
Up to 8 |
Up to 16 |
Up to 16 |
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Max Sampling Rate |
100 MS/s |
250 MS/s |
500 MS/s |
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Resolution |
14-bit |
14-bit |
14-bit |
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Form Factor |
Desktop – NIM – VME |
Desktop – NIM – VME |
Desktop – NIM – VME |
Applications
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Neutrino experiments
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Large number of detectors
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Drift chambers, TPC, Cherenkov detectors
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Application requiring an effective data reduction
You also may be interested in…
DT5724
DT5725 / DT5725S
DT5730 / DT5730S
V1724
V1725 / V1725S
V1730 / V1730S
VX1725 / VX1725S
VX1730 / VX1730S
N6725 / N6725S
N6730 / N6730S
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Image
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Name
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Description
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Software
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Features
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Related Modules
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DPP-PHA |
Digital Pulse Processing for the Pulse Height Analysis |
MC2Analyzer, Compass |
ICH (Independent channels), WV (Waveforms), TS (Timestamp), PHA (Pulse Height Analysis), TDC (Time to Digital Converter) except 724 |
724, 725, 730, 740, 745 Digitizer families |
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FW2495SC |
128 Channels Latching Scaler for V2495 and DT5495 |
N.A. |
64-128 ch. (32-bit depth) 250 MHZ scaler |
V2945, DT5495 |
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FW1495SC |
128 Channels latching Scaler Firmware for V1495 |
N.A. |
64-128 ch. (32-bit depth) 200 MHZ scaler |
V1495 |
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DPP-SUP |
Super Licence for CAEN Digitizers |
N.A. |
DPP-SUP License covers different CAEN DPP firmware on a single digitizer |
725, 730, 740, 745, 2740, 2745, 2730, 2751 Digitizer families |
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DPP-QDC |
Digital Pulse Processing for Charge Integration in High Density Systems |
Compass |
ICH (Independent channels), WV (Waveforms), TS (Timestamp), QDC (Charge to Digital Converter) |
740D Digitizer familiy |
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DPP-DAW |
Digital Pulse Processing with Dynamic Acquisition Window |
DPP-DAW Demo Software |
ICH (Independent channels), WV (Waveforms), TS (Timestamp), DAW (Dynamic Acquisition Window) |
724, 725, 730 Digitizer families |
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DPP-ZLEPLUS |
Digital Pulse Processing for the Zero Length Encoding |
DPP-ZLEplus Demo Software |
WV (Waveforms), TS (Timestamp), ZS (Zero Suppression) |
725, 730, 740, 745, 751 Digitizer families |
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DPP-PSD |
Digital Pulse Processing for Charge Integration and Pulse Shape Discrimination |
Compass |
ICH (Independent channels), WV (Waveforms), TS (Timestamp), TDC (Time to Digital Converter), QDC (Charge to Digital Converter), CFD (Constant Fraction Discriminator), PSD (Pulse Shape Discrimination) |
720, 725, 730, 751, 740, 745 Digitizer families |
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