GFT1208/1218 Digital Delay Generator

GFT1208/1218 8 Channel Digital Delay Generator


Greenfield Technology's GFT1208/1218 Digital Delay Generator provides eight completely independent delay channels. The timing resolution on all channels is <1 ps and channel to channel jitter is less than 15ps. LEMO outputs deliver 2.15V (model GFT1218), 2.5V (model 1208) to 10 V level info 50 Ω .

One T0 sync output channel is provided (zero delay) to reference all eight output channel in different operation modes. Additionally, one input channel is used to trigger off all output channels. In system mode, the module may be optical triggered by GFT3001 via an optical network.

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  • Eight independent delay channels
  • 1ps resolution
  • 15ps rms jitter (channel to channel)
  • GFT1208 : 500 ps rms jitter (external trigger to any output)
  • GFT1218 : < 50 ps rms jitter (external trigger to any output)
  • 10 second delay range
  • cPCI 6U, 1 slot


Channels One fixed position marker (T0) and 8 independent delay
Resolution 1 ps
RMS jitter (T0 to any output) 15 ps rms
RMS jitter (External trigger to any output) 50 ps + 10^-7 x delay
Accuracy < 250 ps + delay x 10^-7
Repetition Rate < 50 kHz
External Trigger Level 1V, slope positive, impedance 50 ohm


Amplitude 2.5 to 10 V, resolution: 1 mV
Width 200 ns to 1 µs
Load 50 ohm
Rise time, fall time < 2 ns, < 5 ns


Size cPCI, 1 slot

    • Optical Triggered


Downloadable Datasheet, Product Manual & Other Resources