CLOCK EXTRACTION DEVICE WITH DIGITAL PHASE LOCK, REQUIRING NO EXTERNAL CONTROL

CLOCK EXTRACTION DEVICE WITH DIGITAL PHASE LOCK, REQUIRING NO EXTERNAL CONTROL

The invention relates to a device for extracting a clock signal from a baseband serial signal, consisting of: an injection-locked oscillator (19), and a phase-lock loop (25) including a digital phase detector (26). The oscillator (19) includes a digital input (24) for controlling the value of the fr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NEVEU CLAUDE, DEVAL YANN, MAZOUFFRE OLIVIER, PIGNOL MICHEL, BEGUERET JEAN BAPTISTE
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:The invention relates to a device for extracting a clock signal from a baseband serial signal, consisting of: an injection-locked oscillator (19), and a phase-lock loop (25) including a digital phase detector (26). The oscillator (19) includes a digital input (24) for controlling the value of the frequency thereof and the phase-lock loop (25) includes a counting circuit (30, 35) which totals the relative values of the digital signal delivered by the digital phase detector (26) and delivers a digital control signal for the oscillator (19).