基于PT RX3310/TX4450无线收发芯片应用系统设计

摘要

在分析普诚芯片RX3310/PT4450原理的基础上,利用少量的外围分立元件,设计一种433 MHz无线接收模块,并结合滚动码软件技术,利用PIC单片机实现加密数据的接收.该模块具有接收灵敏度高,设计调试简单的特点.阐述了系统的硬件电路和软件设计流程,并给出调试的结果.%On the basis of PT chip RX3310/PT4450 principle, the article design a wireless transceiver circuitry which works in 433MHz using few peripheral discrete components, which is easy to debugging and design, and has advantages such as high sensitivity. Combined with the rolling code software technology, the application is to achieve receiving the encode data by using PIC MCU. The article describes the hardware circuit and software design process, and give the debugging result.