Digit talkback chip and digital intercommunication device

The utility model provides an integrated talkback chip and digital intercommunication device, it includes that digital signal processing unit, speech signal compile decoding units, audio output power amplifier unit, microphone amplification circuit unit, microprocessor unit, power management unit, storage location, radio frequency mobile radio receiver digital signal processing unit 0 and digital signal processing unit 1 interface, radio frequency mobile radio receiver transmitter element is used for adopting the voltage -controlled technical process data of low pressure wide band. The utility model provides a zero intermediate frequency digital communication function just can be realized to a single chip, uses the equipment of this chip just can adopt very little circuit, and the receiver circuit complicacy of having solved current DMR intercom leads to is unfavorable for the problem that equipment miniaturized. 本实用新型提供了种集成对讲芯片及数字对讲设备，其包括数字信号处理单元、话音信号编解码单元、音频输出功率放大器单元、麦克风放大电路单元、微处理器单元、电源管理单元、存储器单元、射频移动无线电接收机