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NSDB2019

Nanosecond Delay Box
The CFP Model 2019 Coax Delay Box provides switch-controlled delays from 0 to 63.5 ns with 0.5 ns resolution. Applications include the timing of photomultiplier coincidences, set-up of time-to-amplitude converters, adjustment of signal phase, or any application which requires an adjustable, high-bandwidth analog delay.

Features:

  • Switch controlled time delays
  • 0 to 63.5 ns delay range
  • 0.5 ns resolution
  • Low reflections and feed-through

Description:

The CFP Model 2019 Coax Delay Box provides switch-controlled delays from 0 to 63.5 ns with 0.5 ns resolution. Applications include the timing of photomultiplier coincidences, set-up of time-to-amplitude converters, adjustment of signal phase, or any application which requires an adjustable, high-bandwidth analog delay. 
The interchangeable inputs/outputs are on BNC connectors. Internally, the delay line segments consist of accurate lengths of RG58A/U coax cable with 50 Ω characteristic impedance. DPDT switches are used to insert or remove delay segments. Careful component selection, mechanical design, and PCB layout ensure low reflections and low switch feed-through for high speed signals 

Electrical and Mechanical power required: 

  • POWER REQUIRED
    •  No power required for operation.
  • PHYSICAL
    • Weight:Net WEIGHT 1.1 kg (2.5 lb), Shipping WEIGHT 2.25 kg (5.0 lb).
    • Size: 8.3” × 1.5” × 8.0” (WHL)
INPUTS:
  • SIGNAL INPUT Accepts positive or negative Slow/Fast NIM logic or linear pulses, ±700 volts maximum; Zin = 50 Ω; isolated front panel BNC connector.
 
OUTPUTS:
  • SIGNAL OUTPUT Provides delayed pulse, amount of delay being equal to sum of DELAY IN switches; Zout = 50 Ω; isolated front panel BNC connector.
 
CONTROLS :
  • DELAY IN/OUT – Seven front panel toggle switches to select delay of 0.5, 1, 2, 4, 8, 16 or 32 ns; may be added in any combination up to 63.5 ns beyond minimum delay of 2.5 ns.
Catalog
File Format NanoSecondDelayBox-DESKTOP-MODEL-NSDB2019-Catalog.pdf en 3/16/2016 2:47:51 PM
Mechanical
File Format NSDB2019-Mechanical.pdf en 7/28/2016 11:10:27 AM
  • Timing Calibration for PMT's
  • Time synchronization in timing Applications
  • Phase signal calibrations 
  • Any application that needs timing calibration in Analog line with high bandwidth
  • coincidence applications
  • CONNECTORS: BNC
  • CHARACTERISTIC Impedance: 50 Ω
  • DELAY LINE CABLE: RG58A/U (Belden 8259)
  • INSERTION DELAY: 2.5 ns
  • DELAY RANGE: 0 to 63.5 ns
  • DELAY RESOLUTION: 0.5 ns
  • DELAY ERROR: <100ps + 0.5 % of delay
  • SIGNAL REFLECTION: <3 %
  • SWITCH FEED Through:  <0.8 pF
  • MAXIMUM Voltage:  250Vrms
  • MAXIMUM Current: 2 A
  • TEMPERATURE OPERATING RANGE: 0-50 °C.

Dimensions: