Multiple-phase clock signal generator for integrated circuits, c

Details Multiple-phase clock signal generator for integrated circuits, c Multiple-phase clock signal generator for integrated circuits, c

1994-11-17

1996-05-14

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Clock or pulse waveform generating

327291, 327269, 327284, 377 78, H03K 300

Patent

active

055171478

ABSTRACT:
A multiple-phase clock signal generator includes a phase-locked loop (PLL) for generating an oscillating signal having a predetermined frequency, a counter driven by the oscillating signal and having a plurality of outputs, and a plurality of combinational logic gates each having a plurality of inputs and an output. Selected ones of the inputs of each combinational logic gate are coupled to selected outputs of the counter to produce, at the output of each combinational logic gate, a clock signal having a particular phase. Different combinations of the outputs of the counter can be used to generate different phases.

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