US 12,231,126 B1
System and method for generating sampling strobe for sampling an input signal
Nathaniel Guilar, San Carlos, CA (US); John Patrick Keane, San Jose, CA (US); and Robert Neff, Palo Alto, CA (US)
Assigned to KEYSIGHT TECHNOLOGIES, INC., Santa Rosa, CA (US)
Filed by Keysight Technologies, Inc., Santa Rosa, CA (US)
Filed on Mar. 29, 2023, as Appl. No. 18/127,771.
Int. Cl. H03K 5/01 (2006.01); G06F 1/08 (2006.01); H03L 7/081 (2006.01); H03K 5/00 (2006.01)
CPC H03K 5/01 (2013.01) [G06F 1/08 (2013.01); H03L 7/0812 (2013.01); H03K 2005/00078 (2013.01); H03K 2005/00286 (2013.01)] 20 Claims
OG exemplary drawing
 
8. A device for generating a sampling strobe for controlling a sampling device to sample an input signal, the device comprising:
a phase shifter configured to phase shift an input clock to provide a multi-phase clock signal comprising a plurality of phase shifted input clock signals; and
an aperture generating circuit configured to:
generate a plurality of sampling clock signals from the plurality of phase shifted input clock signals, respectively, by adjusting duty cycles of the plurality of phase shifted input clock signals to provide sampling pulses having desired pulse widths, wherein for each sampling clock signal of the plurality of 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 plurality of sampling clock signals to a plurality of 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, wherein the desired pulse widths correspond to sampling apertures.