This article shows how to properly define modulated flicker noise in Verilog-A compact models, and how a simulator should handle flicker noise for periodic and transient analyses. By considering flicker noise in a simple linear resistor driven by a sinusoidal source, we demonstrate that the absolute value formulation used in most existing Verilog-A flicker noise models is incorrect when the bias applied to the resistor changes sign. Our new method for definition overcomes this problem, in the resistor as well as more sophisticated devices. The generalization of our approach should be adopted for flicker noise, replacing the formulation in existing Verilog-A device models, and it should be used in all new models. Since Verilog-A is the de facto standard language for compact modeling, it is critical that model developers use the correct formulation.

中文翻译：

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紧凑模型中的闪烁噪声公式

本文展示了如何在 Verilog-A 紧凑模型中正确定义调制闪烁噪声，以及模拟器应如何处理周期性和瞬态分析的闪烁噪声。通过考虑由正弦源驱动的简单线性电阻器中的闪烁噪声，我们证明了当施加到电阻器的偏置改变符号时，大多数现有 Verilog-A 闪烁噪声模型中使用的绝对值公式是不正确的。我们的新定义方法在电阻器和更复杂的设备中克服了这个问题。我们的方法的泛化应该用于闪烁噪声，取代现有 Verilog-A 设备模型中的公式，并且应该在所有新模型中使用。由于 Verilog-A 是用于紧凑建模的事实上的标准语言，因此模型开发人员使用正确的公式至关重要。