System and method for generating sampling strobe for sampling an input signal

Abstract

A device for generating a sampling strobe, which controls a sampling device to sample an input signal, includes a phase shifter configured to phase shift an input clock to provide multiple phase shifted input clock signals; and aperture generating circuits configured to generate sampling clock signals from the phase shifted input clock signals, respectively, by adjusting duty cycles of the phase shifted input clock signals to provide sampling pulses having desired pulse widths, where for each sampling clock signal of the sampling clock signals, a rising edge and a falling edge of each sampling pulse originate from the same input edge of the input clock; and apply the sampling clock signals to interleaved samplers of the sampling device, respectively, for controlling sampling of the input signal by integrating according to the desired pulse widths of the sampling pulses, where the desired pulse widths correspond to sampling apertures.