基于CPLD的数字语音通信中复分接的设计

Realization of Multiplexing and Demultiplexing Circuit with CPLD in Digital Audio Communication System

介绍了在数字语音通信中,利用在系统可编程技术和复杂可编程逻辑器件CPLD,实现数字语音的复接和 分接;对于其中的单稳态电路的数字化和数字锁相环提取位同步信号也进行了详细的设计说明。

With the In-System programmable technology and Complex Programmable Logic Device (CPLD),this paper has discussed the realization of multiplexing and demultiplexing in digital audio communication system. The digital realization of monostable circuit and extraction of bit-synchronous signal with digital phase lock loop are also introduced in detail.