BCM Electronics Digitizer, PCI & Calibrator

BCM ElectronicsDigitizer, PCI & Calibrator Craig Dawson Ring BPM FDR

BCM Configuration • 2 Card system – AFE / DFE combination and PCI card • Timing module connects through ribbon cable or Twinax • With Digitizers running at 68MHz, 2 for data and one for status, yields 408Mbytes/sec Ring BPM FDR

BCM Configuration • 64 bit-64MHz PCI should be able to handle all data with it’s 512 Mbytes/sec • If the timing module functions were implemented on this board a true 2 board system, with the exception of the calibrator, would be possible Ring BPM FDR

BCM Block Diagram PCI DATA ACQUISITION CARD DIGITIZERS BCM AFE FIFO’s VOLTAGE VARIABLE GAIN AMPLIFIERS PCI BUS DAC’s STATUS PGA GAIN VALUE MEMORY T 0 TRIGGER 40/10 MHZ PLL CLK SYNTHESIZER 2.5 MHz Reference L BUS DECODE LOGIC L BUS 64 Frev clock FAST SWITCHING AMPLIFIERS TIMING MODULE Event Link RTDL CH 1 Signal input PROGRAMMABLE PULSE OUTPUTS Ring BPM FDR

BCM Calibrator 1 • 2 channel current output DAC based • TI DAC 2902 circuit successfully tested for up to 20mA • Current amplifier design in process for higher currents • Isolated power supply and control lines • Output matched to Twinax Ring BPM FDR

BCM Calibrator 2 • Trigger control of start • Control of pulse delay, width and current with LabVIEW • LBUS connection to AFE through ribbon cable Ring BPM FDR

BCM Calibration Diagram Matching Network 140 78 Calibrator AFE / PCI Ring BPM FDR

BCM Electronics Digitizer, PCI & Calibrator