The MSP58C80 and its companion chipset MSP58c20 form a Mixed Signal Processor. The processor has an internal delta-sigma converter which provides analog to digital and digital to analog conversion. It can provide 4?8 kbps MCELP vocoder.

• SP58C80/MSP58C20混合信号处理器，具有Sigma－Delta编码解码器（CODEC），内置掩模式编程只读存储器，具有4?8kbps压缩率，在外部微控制器（MCU）驱动下，可完成信息的存储、速览、删除、重播等功能。