范文编号:JD1089 范文字数:24224,页数:84 摘 要 立体声调频发射机是由STC89C52单片机控制模块、BH1415F调频调制发射模块、LCD1602液晶显示模块、音频放大输入模块、高频功率放大器模块、电源模块、一根馈线、一根专用发射天线组成。控制模块是通过矩阵键盘和红外遥控向STC89C52单片机发出信息,经过编译处理把代码发送至BH1415F 芯片,调频发射模块是用变容二极管直接调频,结合锁相环(PLL)系统,可以得到很高的中心频率稳定度,信号再经过高频放大器放大,通过馈线向空中发射调频电磁信号,供耳机、收音机等带有调频接收功能的设备接收。 关键词:STC89C52 BH1415F PLL 调频 变容二极管 高频功率放大器
ABSTRACT Stereo FM transmitter module by STC89C52 MCU, BH1415F FM modulation transmitter module, LCD1602 LCD module, audio amplification input module, high frequency power amplifier module, power module, a feeder, a special launch antenna. Control module is by the matrix keyboard and infrared remote control to send a message STC89C52 MCU, after compiling the code sent to BH1415F processing chip, FM transmitter module is the direct frequency modulation varactor diode, combined with phase locked loop (PLL) system, can be very high center frequency stability, signal and then through the high-frequency amplifier, through the feeder to the air-launched FM electromagnetic signals for headphones, FM radio reception with a receiving device.
摘 要 I 立体声广播发射机相关范文 |
上一篇:51单片机红外收发器设计 | 下一篇:风光互补发电系统 |
点击查看关于 立体声 广播 发射机 的相关范文题目 | 【返回顶部】 |