The divider controller can contribute significantly to the phase noise and spur pattern in the output of a nonlinear fractional- $N$ frequency synthesizer. A type of time-varying spurs caused by a MASH DDSM divider controller, termed wandering spurs, has been observed in simulations and measurements of real synthesizers. In this work, we propose and analyze several MASH-based divider controller architectures that mitigate wandering spurs in a fractional- ${N}$ frequency synthesizer.

中文翻译：

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基于 MASH 的分频器控制器，用于减轻分数 N 频率合成器中的漂移杂散

分频器控制器对非线性小数分频输出中的相位噪声和杂散模式有显着影响。 $N$ 频率合成器。由 MASH DDSM 分频器控制器引起的一种时变杂散，称为漂移杂散，已在真实合成器的模拟和测量中观察到。在这项工作中，我们提出并分析了几种基于 MASH 的分频器控制器架构，这些架构可以在分数- ${N}$ 频率合成器。