基于宏晶单片机的FM收音机设计与实现

his topic is according to design of a digital stereo radio. The hardware of this design use STC12C5404 of STC Technology as the core control chip, TEA5767 of PHILTPS as the Radio chip, FM62429 and TDA2822 IC as the composition of the audio module. On the other hand, the software components of this design use C language as programming language of the system, Keil C as the development environment. Communication protocols such as IIC bus protocol, SPI agreements are involved in the program. The special download software of STC Technology is used as a means to download. Radio function of TEA5767 has been fully utilized to the system in the design. Intelligent controlling of MCU adjusts the audio and display in ways. Finally, the audio signal is output through the power amplifier module. In this way, a complete radio system has been constituted in all functional modules. New radio system overcome some shortcomings in the traditional FM radio in operational. The results show that the design can be used in the multimedia home theater, auditorium and other occasions, In addition, it can be easy to carry, and embedded into other audio systems. The cost of a single product is low, and performance is stable, it has some practical value.