DDC-8PRO/LUX
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Overview:
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Here the DDC-8PRO and DDC-8LUX (designed by Wojtek Skulski)
are grouped together since they are not that different from each other.
The eight-channel digital pulse
processors DDC-8PRO/LUX are a substantial upgrade to
DDC-8. Both
of them have a more powerful FPGA (see table below), faster and better
Analog to Digital Converters. To increase the dynamic range additional
passive filtering was added. Both were redesigned to be
pluggable into a VME crate or run on an external stand-alone power
supply. New Cypress FX2LP chip was incorporated to use high-speed
USB2.0 bandwidth. Also additional input/output connectors were placed,
including a high speed HDMI connector on the DDC-8LUX model for the
ability of scaling the LUX Trigger.
The
DDC-8LUX board has the capability of running on an externally provided
clock, which makes it useful in applications where overall time
synchronization is critical.
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The board (DDC-8LUX):
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Main parameters:
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DDC-8PRO |
DDC-8LUX |
| FPGA |
Xilinx
XC3S400 |
Xilinx
XC3S500E |
| Analog to Digital Converter |
14bit@64MHz |
14bit@64
(up to 80MHz) |
| Number of channels |
8 |
8 |
| Buffer length per channel |
1024 |
1024 |
| Additional features |
- |
HDMI
high speed connector
Timestamping NIMs (CLK,RST) |
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Sample digitized event:
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Left:
Waveform of an event captured with a Struck digitizer.. Right :
Timestamp matched event captured by DDC-8LUX |
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Real application:
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LUX Trigger testing at CASE
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Eryk
Druszkiewicz, Frank Wolfs
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A DDC-8LUX module in a VME crate working together with Struck digitizer |
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Energy spectra collection with a Germanium detector
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Eryk
Druszkiewicz, Adi Robinson, Frank Wolfs
A sample spectrum of Co60 obtained using DDC-8Pro and a Germanium
detector. The resulting resolution is ~1.17 keV
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