Pulse swallowing counter

Pulse swallowing counter

A pulse swallowing counter is a component in an all-digital feedback system. The overall pulse swallowing system is used as part of a fractional-N frequency divider. ["Integrated Frequency Synthesizers for Wireless Systems", Andrea Lacaita, Salvatore Levantino, and Carlo Samori, Cambridge University Press, 2007, p. 24] The overall pulse swallowing system cancels beatnotes created when switching between N, N+1, or N−1 in a fractional-N synthesizer. [ Manassewitsch, Vadim. 1987. "Frequency Synthesizers: Theory and Design", 3rd Ed., John Wiley & Sons, ISBN 0-471-01116-9, pp. 43–48]

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