机顶盒数字音频的无线转发系统设计  

Design of Set-top Digital Audio Radio Transponder System

作　　者：严芳[1] 林东[1] 

机构地区：[1]福州大学物理与信息工程学院,福州350002

出　　处：《单片机与嵌入式系统应用》2012年第3期59-61,共3页Microcontrollers & Embedded Systems

摘　　要：采用nRF24Z1无线射频芯片对电视机顶盒的数字音频S/PDIF信号进行无线发送与接收。该方案根据实际应用环境设计电路,并采用PIC18系列单片机分别对发送端和接收端射频芯片及接收端的D/A转换芯片进行配置,并设计按键控制其音量的增减。实验表明,该方案能够实时接收机顶盒音频,且在室内收听时音质较好。The design uses a radio frequency chip nRF24Z1 to achieve wireless sending and receiving signals of TV set-top boxes＇s digital audio S/PDIF.Based on the actual application environment,the program designs circuit and uses the family of PIC18 microcontroller to configure the sending and receiving RF chip and receiving end D/A chip,and designs buttons to control the volume change.The experiment shows that the program can receive real-time set-top box audio and the sound quality in the room is clear.

关 键 词：数字音频 无线传输 NRF24Z1 S/PDIF PIC18 

分 类 号：TN948.55[电子电信—信号与信息处理] TP368.1[电子电信—信息与通信工程]