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文章介绍了Cx28975的主要功能,并以CX28975为核心设计了E1高增益系统,在一对双绞线上实现对称的、全双工2.048Mbit/s速率传输信号,传输的距离可达4km。给出了实现可视电话的应用方案及在扩展企业网中的应用前景。
This paper introduces the main functions of the Cx28975, and designs the E1 high gain system with the CX28975 as its core. The symmetric full-duplex 2.048 Mbit / s transmission rate is achieved over a twisted pair cable and the transmission distance can reach 4 km. The application scheme of realizing videophone and its application foreground in expanding enterprise network are given.