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Digital Pulse Processing for the Pulse Height Analysis

DPP-PHA

Home Firmware & SoftwareFirmwareDigital Pulse Processing (DPP) DPP-PHA

Free downloadable DPP-PHA Trial version for 724, 725, 730, 2740 and 2745 series.

  • The user can download and install DPP-PHA firmware without any license key and use it with time frame limitation: every 30 min the user have to restart (Power off/power on) the board

  • To get time-unlimited operating DPP-PHA the user should purchase a License

  • 780/781/V1782 Digital MCA are factory provided with time-unlimited operating DPP-PHA firmware and don’t require licensing

DPP-PHA (Digital Pulse Processing for Pulse Height Analysis) firmware is fully controlled by CoMPASS, the CAEN multiparametric spectroscopy software for Physics application, and by MC2Analyzer (724, 725, 730 only), the CAEN software for Digital Pulse Height Analysis.

A digitizer running DPP-PHA firmware becomes a multichannel data acquisition system for nuclear physics or other applications requiring radiation detectors. The digitizers accept signals directly from Charge Sensitive Preamplifiers or photomultipliers and implement a digital replacement of Shaping Amplifier and Peak Sensing ADC, allowing the user to perform energy and time measurements. All these functions are performed inside the FPGA without any use of external cables, nor additional boards or delay lines. Therefore, a single compact system takes care of the acquisition, replacing the traditional analog boards.

It is also possible to realize multi-board systems and, eventually, perform coincidences among channels thanks to the DPP-PHA firmware features: the front panel clock, the trigger and the general-purpose LVDS I/Os connectors (VME only) make it possible to synchronize multiple boards.

Software

Firmware

Features

724

725

730

2740

2745

MC2Analyzer
(724, 725, 730 only)

DPP-PHA

ICH (Independent channels)

✔

✔

✔

✔

✔

WV (Waveforms)

✔

✔

✔

✔

✔

Compass

TS (Timestamp)

✔

✔

✔

✔

✔

PHA (Pulse Height Analysis)

✔

✔

✔

✔

✔

TDC (Time to Digital Converter)

✔

✔

✔

✔

Applications:

  • Nuclear Spectroscopy

  • HPGe, silicon drift, silicon strip detectors

  • Readout of PMT with slow scintillation detectors (i.e. Na(TI))

  • Anti-Compton shielding

  • Ion Beam analysis

  • Homeland security

  • Nuclear medicine


Features

  • Digital solution equivalent to Shaping Amplifier and Peak Sensing ADC

  • Trapezoidal Filter for Pulse Height Analysis

  • Supported by:

    • CAEN CoMPASS Software

    • MC2Analyzer Software

    • NSCLDAQ Software (725-730 series)

  • Energy spectra measurements

  • Self-Trigger using RC-CR2 digital algorithm

  • Online baseline restoration and ballistic effect correction

  • Programmable input offset, trigger and energy filter parameters

  • Online correction of pile-up for high counting rate measurements

  • On-line coincidences/anti-coincidence acquisition mode among channels

  • Timing information (pulse timestamps and/or rise/fall time)

  • Free downloadable firmware trial version


Ordering Options

Code Description
WFWDPPTFAA25

DPP-PHA – Digital Pulse Processing for Pulse Height Analysis for (16ch x 725)

 

(In production)

WFWDPPTFAA30

DPP-PHA – Digital Pulse Processing for Pulse Height Analysis (16ch x 730)

 

(In production)

WFWDPPTFAAAA

DPP-PHA – Digital Pulse Processing for Pulse Height Analysis (8ch x 724)

 

(In production)

WFWDPPTFAD24

DPP-PHA – Digital Pulse Processing for Pulse Height Analysis (4/2 ch x 724)

 

(In production)

WFWDPPTFAD25

DPP-PHA – Digital Pulse Processing for Pulse Height Analysis for (8ch x 725)

 

(In production)

WFWDPPTFAD30

DPP-PHA – Digital Pulse Processing for Pulse Height Analysis (8ch x 730)

 

(In production)

Manual Download Compare

DPP-PHA: Manuals

Name
Revision
Format
File Size
Last Update
MC2Analyzer User Manual Software for digital Multi Channel Analyzer
13
pdf
6.25 Mb
29/09/2025
UM5407 724-781 DPP-PHA Legacy Registers and Data Format
3
pdf
2.43 Mb
13/07/2020
UM5678 725-730 DPP-PHA Registers and Data Format
5
pdf
13.17 Mb
27/10/2025
UM5960 CoMPASS User Manual
26
pdf
15.02 Mb
16/12/2025
UM6769 724-781-782 DPP-PHA Registers and Data Format
4
pdf
1.69 Mb
26/08/2022
UM6771 780 DPP-PHA Registers and Data Format
4
pdf
2.17 Mb
26/08/2022

DPP-PHA: Download

Guides

Name
Revision
Format
File Size
Last Update
GD2827 - How to make coincidences with CAEN digitizers
4
pdf
2.54 Mb
09/10/2025
GD6300 CoMPASS QuickStart Guide
26
pdf
14.9 Mb
16/12/2025

White Papers

Name
Revision
Format
File Size
Last Update
WP2081 Digital Pulse Processing in Nuclear Physics
4
pdf
6.16 Mb
13/06/2017

Application Notes

Name
Revision
Format
File Size
Last Update
AN3110 - Energy Resolution and Linearity of the MCA CAEN DT5780
0
pdf
0.2 Mb
20/01/2014
AN5157 - A Readout System with CAEN Digitizer for Clover Detectors with Anti-Compton Shield
2
pdf
2.32 Mb
27/01/2017
AN5830 - Comparison between two CAEN MCAs and two CAEN digitizers
0
pdf
1.01 Mb
13/09/2016
AN2508 - CAEN Digital Pulse Height Analyser - a digital approach to Radiation Spectroscopy
0
pdf
0.75 Mb
05/09/2011
AN6308 - Downsampling measurements with CAEN Digitizer 720/724/740/751 families
0
pdf
1.07 Mb
03/10/2017
AN6896 - Clover Detector Data Acquisition with CAEN V1782 Octal MCA
0
pdf
1.1 Mb
23/07/2019
AN7661 - Positron Annihilation Lifetimeme Spectroscopy measurement with CAEN digitizers
0
pdf
0.95 Mb
22/09/2020

Articles

Name
Revision
Format
File Size
Last Update
AR2592 - A multi-detector, digitizer based neutron depth profiling device for characterizing thin film materials
0
pdf
1.76 Mb
06/07/2012
AR7089 - Study of radioactivity built-up and decay with singles time-stamped data
0
pdf
0.3 Mb
02/10/2019
AR8198 - Performance of Digitizers with HPGe and Scintillation Detectors
0
pdf
0.23 Mb
02/12/2013
Name
Revision
Format
File Size
Last Update
x724 - DPP-PHA Firmware Legacy
4
cfa
1.27 Mb
05/02/2025
x730 - DPP-PHA Firmware
4
cfa
3.16 Mb
06/02/2025
x725 - DPP-PHA Firmware
4
cfa
3.17 Mb
06/02/2025
x724 - DPP-PHA Firmware
4
cfa
1.85 Mb
08/09/2025
x781 DPP-PHA Firmware
4
cfa
1.85 Mb
08/09/2025
x780 DPP-PHA Firmware
4
cfa
1.85 Mb
08/09/2025
V1782 DPP-PHA Firmware
4
cfa
1.85 Mb
08/09/2025
x730S - DPP-PHA Firmware
4
cfa
6.62 Mb
06/02/2025
x725S - DPP-PHA Firmware
4
cfa
6.62 Mb
06/02/2025
2740 DPP-PHA Firmware - 1G
2025102402
cup
14.92 Mb
24/10/2025
2745 DPP-PHA Firmware - 1G
2025102402
cup
14.92 Mb
24/10/2025

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