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MODEL V860
PULSE AMPLIFIER
VME MODULE
  • Outputs up to 10 volts into 50 ohms.
  • Sub-nanosecond risetime: 400 ps typical at 10 volts
  • Low added jitter: 3 ps RMS typical
  • Adjustable input threshold and polarity allow input from ECL, TTL, NIM, and other logic levels.
  • Channel cascade feature allows multiple pulse fanout configurations
The V860 is a multichannel pulse amplifier packaged as a standard VME module. It accepts logic-level inputs and generates high-level, very fast positive output pulses.
Model V860 Pulse Amplifier VME Module Specifications
CONFORMANCE Complies with ANSI/IEEE 1014-1987 VMEbus specification, VXIC specification, Rev1.4.
PACKAGING  Single-width, 6U VME, B-size VXI module.
INPUTS
6 logic inputs, threshold -2.5 to +2.5V. Factory set to +1.25 V. Max input +4V
Per-channel switches select input polarity and input termination, 50 ohms to gnd or high impedance. Factory setting positive, terminated.
Channel inputs may be cascaded to perform logic fanout functions.
One common TTL-level GATE input disables all outputs when pulled low.
OUTPUTS
6 positive pulses, active pullup, passive pull-down. Termination to gnd recommended.
Pulse amplitude adjustable +4V to +10V into 50-ohm load with common adjustment for all channels. Factory set to+5V.
Pullup DC output impedance 2 ohms nom. Pulldown 500 ohms nom, with connectors matched to 50 ohms. Output current limit 300 mA peak, 80mA average.
Risetime 500ps max, falltime 5 ns max, 10-90%.
PROP DELAY  Rising edge 2.5ns typ, falling edge 10ns typ.
JITTER
Rising edge less than 5 ps RMS added jitter.
Falling edge, less than 25 ps RMS added jitter.
POWER Standard VME supply voltages: +5, +12, -12 V, 5W +load power max. The V860 does not interface to the VME data bus and passes all VME grant lines.
Highland Technology Model V860 VME Pulse Amplifier Data Sheet

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