Subscriber line interface circuit is an important part of digital program-controlled switching system.

模拟用户线接口电路是数字程控交换系统的重要组成部分。

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A new circuit scheme for the address coded TDM switching system of low speed digital channels is discussed in this paper.

本文叙述了一种适用于低速数字信道的地址编码时分交换系统的新的电路方案。

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In a digital common-mode noise attenuation system for switching power converters, one of the key issues is the estimation of common-mode noise.

在电力电子开关变换器数字化共模噪声抑制系统中，一个重要环节就是共模噪声的评估。

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