摘要
AMBE-2000具有话音质量高、编码速率可变、配置灵活等特点,在卫星通信、安全通信、数字移动无线电领域得到了广泛应用。根据关键管脚功能以及时序要求使用4片ABME-2000设计实现了双路话音编解码器,每个AMBE-2000只完成编码或解码功能。为了保证话音质量,采用CD74HC4046A进行编解码时钟的同步设计。设计的双路话音编解码模块经试验验证,话音清晰,满足系统要求。
AMBE-2000TM vocoder chip,with diversified configurations,high performance and flexible code rates is widely applied in satellite communications,security communications and digital mobile wireless communication systems.A duplex vocoder is designed with four AMBE-2000 vocoder chips,each chip for code or decode only.To ensure the quality of voice,the vocoder clock synchronization is designed by using CD74HC4046A.The experiments indicate that the designed duples vocoder has clear voice and could meet the requirements of the system.
出处
《通信技术》
2012年第3期16-18,21,共4页
Communications Technology
