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MODEL SF-1090

SUPER FIDUCIAL GENERATOR


The Super Fiducial Generator provides a precise event start marker, with variable width and high fan-out capability.

It is designed around a three bit programmable delay generator. The seven programmed states are increased an additional two steps, by use of the on-chip enable function and external gate propagation delays. Two comparators serve as the trigger polarity and level detectors, thus allowing a single front panel control in place of the traditional dual knob function.

SF-1090

The external/internal triggers are steered through gates, eliminating that switch. The internal O/S is on the Power ON/OFF switch, and is enabled by the extreme CCW freq. control, which makes for an exceedingly versatile and simple front panel design.

Fast pulse techniques are implemented throughout, wherein signals are "cold switched" from the front panel via gates. This feature plus state of the art devices contribute to less than 30 ns. throughput delay. Jitter (delta T) is undiscernable on a Tektronix 475 oscilloscope, set at 1 ns sweep.

SPECIFICATIONS

Electrical

A. C. power ............... 115 Vac, 50/60 Hz fused at 1/2 A
External trigger input .... Z in 2k Ω, positive or negative polarity
Trigger level control ..... +-0.1 V to +-10 V, protected to +-100 Vdc
                            plus peak Max.
Internal rate ............. 1 Hz to 1kHz
Pulse width ............... Selectable 10-90 ns
Amplitude output .......... 4 BNC connections, each output 50V/50 Ω
Output jitter ............. <= 100 ps
Throughput delay .......... <=  30 ns
Output simultaneity ....... <    1 ns

Mechanical

Construction ...... Steel chassis with aluminum engraved front panel
Size .............. 15.3 cm h x 20.4 cm w x 10.2 cm d
                    (excluding knobs and handle)
Color ............. Painted chassis, natural aluminum front panel,
                    black filled engraving
Weight ............ 2.5 kg

Options

SF-1090-R ...... Rack mount-Front panel 3-1/2" h x 19" w
SF-1090-P ...... Programmable pulse width, freq., input/output level

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