The LRFSC card takes an analog signal from a pickup in a Radio Frequency
accelerating cavity, compares that signal with a set point and drives an
amplifier to correct the field in the cavity. It implements a digital
feedback system in an FPGA which is at the heart of a VME32 board. This
project is not meant to be the basis of any new developments. The FPGA
used (Xilinx Virtex 2) is not commercially available any more. Links to
EDMS page at
containing the schematics, layout, BOM and other useful documents.
The Documents tab of
this OHR project, containing a couple of write-ups about the
The repository in
this OHR project, containing the VHDL sources for the FPGA.