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。
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。
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。
The switching circuit is offen used in the pulse digital system. As the switching circuit is acted on by capacitive load, the working speed of the switching circuit is limited.
开关电路是脉冲数字系统中常用电路之一，由于负载电容的影响，限制了该电路的工作速度。
The phase adder in the model is widely applied which could enable system to hold high frequency revolution, fast frequency switching, and easily digital modulating of the signal's phase and amplitude.
模块中的相位累加器，使系统具有较高的频率分辨率，可实现快速频率切换，很容易实现频率、相位和幅度的数控调制，有广泛的应用价值。
Both transmission device and switching device are entirely digital, it's easily to control system and search data with multimedia computer which could reduce cost and improve performance.
采用了全数字化的传输和交换设备，利用多媒体计算机进行监控和辅助检索。使得成本降低，效率提高。
The design methods given here have been successfully implemented in a Chinese-developed SPC digital telephone switching system.
本文所讨论的设计方法已成功地应用于国产程控数字电话交换机。
The design methods given here have been successfully implemented in a Chinese-developed SPC digital telephone switching system.
本文所讨论的设计方法已成功地应用于国产程控数字电话交换机。
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