摘要
为了在电子产品中嵌入立体声FM数字收音机功能。采用单片机AT89S52和TEA5767HN为硬件核心,运用I2C总线通信方式进行软件设计,给出了实现手动搜台、自动搜台等功能的FM数字调频收音机的设计方法。该方法采用PT2257对音频进行处理,以实现立体声输出,因而具有轻巧、方便、频带范围宽、低功耗、高灵敏度等特点,并可以嵌入MP3、手机、便携式播放器等小型电子产品中。
In order to meet the requirements of consumers for electronic products,the function of digital FM stereo radio embedded in electronic products is achieved.MCU AT89S52 and TEA5767HN are taken as the hardware core.The software design is conducted with I2C bus communication mode.The manual tuning and automatic tuning functions of digital FM radio were implemented.The audio processing is performed by PT2257 to achieve the stereo output.The system has the characte-ristics of light weight,easy operation,wide band,low-power and high sensitivity,and can be embedded in MP3,mobile phones,portable players and other small electronic products.
出处
《现代电子技术》
2011年第11期181-184,共4页
Modern Electronics Technique
