A pulse-swallowing counter is a component in an all-digital feedback system. The divider produces one output pulse for every N counts (N is usually a power of 2) when not swallowing, and per N+1 pulses when the 'swallow' signal is active. The overall pulse-swallowing system is used as part of a fractional-N frequency divider. The overall pulse-swallowing system cancels beatnotes created when switching between N, N+1, or N−1 in a
fractional-N synthesizer
In electronics, a frequency multiplier is an electronic circuit that generates an output signal and that output frequency is a harmonic (multiple) of its input frequency. Frequency multipliers consist of a nonlinear circuit that distorts the inpu ...
.
[Manassewitsch, Vadim. 1987. ''Frequency Synthesizers: Theory and Design'', 3rd Ed., ]John Wiley & Sons
John Wiley & Sons, Inc., commonly known as Wiley (), is an American multinational publishing company founded in 1807 that focuses on academic publishing and instructional materials. The company produces books, journals, and encyclopedias, i ...
, , pp. 43–48.
References
Control theory
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