Frequency synthesizer

Details Frequency synthesizer Frequency synthesizer

H - Electricity

03

L

H03L 7/18 (2006.01) G06F 1/025 (2006.01)

Patent

CA 2378338

Frequency synthesizer including a phase accumulator (200), a most significant bit selector (250) and a jitter adjusting circuit (260). The most significant bit selector passes the most significant bit of the output of the phase accumulator to a jitter adjusting circuit to remove jitter before outputting a square wave. The jitter adjusting circuit may be, for example, a phase locked loop or a bandpass filter.

L'invention concerne un synthétiseur de fréquences comprenant un accumulateur de phase (200), un sélecteur du bit (250) le plus important et un circuit de réglage de gigue (260). Le sélecteur du bit le plus important transmet à un circuit de réglage de gigue le bit le plus important de la sortie de l'accumulateur de phase avant d'émettre une onde carrée. Le circuit de réglage de gigue peut, par exemple, être une boucle à phase asservie ou un filtre passe-bande.

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