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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-2000 with high voice quality, variable encoding rate, flexible configuration and other characteristics in the satellite communications, secure communications, digital mobile radio field has been widely used. Two-way voice CODECs are implemented using 4-chip ABME-2000 design based on key pin functions and timing requirements, with each AMBE-2000 performing only encoding or decoding functions. In order to ensure the voice quality, using CD74HC4046A codec clock synchronization design. Designed dual-channel voice codec module tested and verified, voice clear, to meet system requirements.