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Digital delay / pulse generator (4 ch.)--SRS
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  • Four independent delay channels
  • Two fully-defined pulse channels
  • 5 ps delay resolution
  • 50 ps rms jitter
  • Adjustable amplitude and offset
  • Delays up to 1000 seconds
  • Standard GPIB interface
  • Optional 32 V output

    Specifications
    Delays
    Channels Four independent delay outputs
    Range 0 to 999.999,999,999,995 seconds
    Resolution 5 ps
    Accuracy 1500 ps + timebase error delay
    Timebase Standard: 25 ppm crystal oscillator
    Optional: 1 ppm TCXO (opt. 03)
    External: 10.0 MHz reference input
    RMS jitter <50 ps + 10-8 delay (T0 to any output)
    <60 ps + 10-8 delay (ext. trigger to any output)
    Trigger delay (typ.) 85 ns (ext. trigger to T0 output)
    External Trigger
    Rate DC to 1/(1 µs + longest delay)
    Threshold 2.56 VDC
    Resolution 10 mV
    Slope Trigger on rising or falling edge
    Impedance 1 M + 40 pF or 50
    Internal Rate Generator
    Rate Single shot, 0.001 Hz to 1.000 MHz, or Line
    Resolution Four digits, 0.001 Hz below 10 Hz
    Accuracy Same as timebase
    Jitter 1:10,000
    Settling <2 seconds for any rate change
    Burst mode 2 to 32766 pulses per burst at integer multiples (4 to 32767) of the trigger period
    Outputs
    Load 50 or high impedance
    Rise time 2 to 3 ns (typ.)
    Slew rate 1 V/ns
    Overshoot <100 mV + 10 % of pulse amplitude
    Levels TTL: 0 to 4 VDC (normal or inverted)
    ECL: -1.8 to -0.8 VDC (normal or inverted)
    NIM: -0.8 to 0.0 VDC (normal or inverted)
    VAR: Adjustable offset and amplitude between -3 and +4 VDC with 10 mV resolution. 4 V maximum transition.
    Accuracy (50 mV + 3 % of pulse amplitude)
    Option 02 Rear panel 1 µs pulses corresponding to T0, A, B, C, D outputs with nominal amplitude of 8 the front-panel outputs at 1kHz rep rate. Output level reduced by 2 V/mA of additional average output current.
    Fast Rise Time (opt. O4A)
    Output amplitude +0.5 to 2.0 VDC
    Output offset -0.8 VDC (typ.)
    Transition time
         Rise (20/80 %)
         Fall (20/80 %)


    100 ps (max.)
    2000 ps (max.)

    Pulse aberrations
         Foot
         Ring

    4 % (typ.)
    5 % (typ.)
    Fast Fall Time (opt. O4B)
    Output amplitude -0.5 to -2.0 VDC
    Output offset +0.8 VDC (typ.)
    Transition time
         Rise (20/80 %)
         Fall (20/80 %)

    2500 ps (max.)
    100 ps (max.)
    Pulse aberrations
         Foot
         Ring

    4 % (typ.)
    5 % (typ.)
    General
    Display Backlit 20-character LCD
    Computer interface GPIB (IEEE-488). All instrument functions and settings may be controlled over the interface bus. Interface queue can be viewed from the front panel.
    Dimensions 8.5" 4.75" 14" (WHL)
    Weight 10 lbs.
    Power 70 W, 100/120/220/240 VAC, 50/60 Hz
    Warranty One year parts and labor on defects in materials and workmanship

     

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