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METHODS AND APPARATUS FOR SYNCHRONIZING FREQUENCY DIVIDERS USING A PULSE SWALLOWING TECHNIQUE
METHODS AND APPARATUS FOR SYNCHRONIZING FREQUENCY DIVIDERS USING A PULSE SWALLOWING TECHNIQUE
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机译:利用脉冲倒流技术同步频率分频器的方法和装置
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摘要
Methods and apparatus for synchronizing dividers in different LO paths using pulse swallowing. One example apparatus generally includes a first path having a first frequency divider configured to generate a first divided signal from a first periodic signal; a second path having a second frequency divider configured to generate a second divided signal from a second periodic signal; a phase detector configured to compare phases of a first sensing signal based on the first divided signal and a second sensing signal based on the second divided signal and to generate a first trigger signal if the first and second sensing signals are out-of-phase; and a first pulse suppressor configured to suppress a pulse of the first periodic signal for at least one cycle in response to the first trigger signal to adjust a phase of the first divided signal.
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