SEMICONDUCTOR DEVICE

A semiconductor device outputs, as an output signal synchronized to a phase-locked loop clock signal, a synchronized input signal that is synchronized to a reference clock signal of a phase-locked loop circuit. The semiconductor device includes the phase-locked loop circuit, a first flip-flop that r...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MATSUI, Katsuaki, OGAWA, Junya
Format:	Patent
Sprache:	eng
Schlagworte:	AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES BASIC ELECTRONIC CIRCUITRY ELECTRICITY
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A semiconductor device outputs, as an output signal synchronized to a phase-locked loop clock signal, a synchronized input signal that is synchronized to a reference clock signal of a phase-locked loop circuit. The semiconductor device includes the phase-locked loop circuit, a first flip-flop that receives the input signal in synchronization with the reference clock signal on the basis of a feedback signal inputted to a phase comparator of the phase-locked loop circuit 10, and a second flip-flop that receives an output from the first flip-flop on the basis of the phase-locked loop clock signal. The second flip-flop outputs the output from the first flip-flop as the output signal. A setup time to synchronize the input signal to the phase-locked loop clock signal is set to one half of a period of the reference clock signal.