在高速数据处理中,通过合理选择集总参数通道中的电子元件来降低噪声和干扰

A. N. Tynynyka
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引用次数: 0

摘要

在大多数电子系统的设计中,主要关注的是设备本身的发展,而满足干扰保护要求的问题通常是次要的,这就需要对其进行特殊的研究。本文介绍了无线电电子器件的设计方法和规则,以减少噪声和干扰。作者在元器件的选择、电缆和连接器的安装、打印节点的设计和干扰滤波等问题上提供了实用的指导。这些任务的紧迫性是由几个主要原因引起的,即半导体器件和电子电路速度的提高,数字器件工作信号幅度的降低,互连和级联布局对电子器件和系统的稳定性和速度的影响越来越大,寻找和消除电子器件低抗噪性原因的复杂,昂贵和耗时的过程。随着元件的速度和布局密度的增长,保证不同器件和系统之间电磁相互作用的抗噪性成为一般无线电电子系统设计的最重要任务。在设计任何电子电路时,不可避免地会引入额外的电阻、电感和电容寄生参数。这可能会严重影响实际设计的性能,降低其速度和抗噪声能力,甚至导致完全失败。设计和安装对高速(高频)电路和设备的运行有特别大的影响。在这种情况下,系统速度、抗噪性和电磁兼容性成为电子设计质量的主要标准。
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Reduction of noise and interference by rational selection of electronic components in lumped parameter channels at high speed data processing
When designing most electronic systems, the main focus is on the development of the devices themselves, while the problem of meeting the requirements for the interference protection usually take second place, which calls for a need in this particular study. The article is devoted to methods and rules for design of radio electronic devices, which reduce noise and interference. The author provides practical guidance in the issues of choosing components, installing cables and connectors, designing print nodes and interference filtering. The urgency of these tasks is caused by several principal reasons, i.e., the increase of the speed of semiconductor devices and electronic circuits in general, reducing the amplitudes of the working signals of digital devices, increasing effect of interconnects and cascade layouts on the stability and speed of electronic devices and systems, the complex, costly and time consuming process of finding and eliminating the causes of low noise immunity of electronic devices. With the speed growth and the layout density of the elements, ensuring the noise immunity of the electromagnetic interaction between different devices and systems becomes the most important task of designing the radio electronic systems in general. When designing any electronic circuit, additional resistive, inductive and capacitive parasitic parameters are inevitably introduced. This can critically affect the performance of the real-life design by lowering its speed and noise immunity, even leading to complete failure. Design and installation have a particularly strong influence on the operation of high-speed (high-frequency) circuits and devices. In such cases, system speed, noise immunity and electromagnetic compatibility become the main criteria for the quality of electronic design.
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