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在系统12的模拟用户电路设计中,已经应用了过去三年在高压技术、综合处理技术和LSI辅助设计方面取得的新技术成果,在用户电路中广泛使用最新型集成电路,达到了高性能、灵活性强、体积小以及功耗低的要求.为了满足特定电信系统对模拟用户电路的要求(例如测试话音电平),ITT已作出巨大努力来确定和开发所需要的技术,已得到应用的三种主要先进技术是:—应用介质隔离的高压技术;—70V双极和15V CMOS联合处理技
In the analog subscriber circuit design of the system 12, the new technological achievements made in the high voltage technology, the integrated processing technology and the LSI auxiliary design in the past three years have been applied and the latest integrated circuits are widely used in user circuits to achieve high performance, Flexibility, Small Size, and Low Power Consumption ITT has made significant efforts to identify and develop the required technologies to meet the requirements of a given telecommunications system for analog subscriber circuits (such as testing voice levels) and has applied The three main advanced technologies are: - high voltage technology for dielectric isolation applications; -70V bipolar and 15V CMOS combination processing