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fmtea5767

  • Category : Software Engineering
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  • Update : 2014-01-01
  • Size : 418kb
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  • Author :gon***
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本文章针对一款数字立体声收音机进行设计研究。设计的硬件采用宏晶科技 STC12C5404 单片机为核心进行控制,收音芯片选用PHILIPS 公司的TEA5767,音频部分选用 了FM62429 和TDA2822 两款集成芯片;编程软件使用C 语言程序设计,程序开发环境为Keil C,程序中涉及到了IIC 总线协议、SPI 协议等通信协议,下载使用宏晶公司的专用下载软 件。本系统充分利用TEA5767 的收音功能,通过单片机的智能控制进行音频和显示的多功能 操作,音频通过音量控制芯片进行音量调节,音频信号后级通过功率放大模块输出。各个功 能模块组成一套完整的收音系统,克服了传统FM 收音机在操作和频率锁定上的诸多不便。 结果表明,本论文设计成品可以使用在多媒体家庭、视听室等场合,可便携也可嵌入其他音 频系统,单品造价低廉,性能稳定,具有一定的实用价值。
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