Pulse width modifier iC245 produces small pulses with minimum length of 250 ps from an LVDS input signal up to 1.4 GHz. For pulses greater than 600 ps the coarse step size is typically 640 ps while the fine step size is about 40 ps.
For input frequencies less than 1.4GHz it is possible to modify the duty cycle of the waveform in order to get a symmetrical optical signal.
This module can be used with the evaluation boards HG1D, HG2D, NZN1D and NZP1D in combination with the iC149 and iC123 generators.