多路无线遥控接收装置设计优秀论文集.doc

多路无线遥控接收装置的设计 田 涛 （统专信班）介绍了一种无线电遥控多通道开关系统的设计方法，详细阐述了其组成结构和工作原理。该方法采用芯片组PT2262/2272，PT2262/PT2272是台湾普城公司生产的一种CMOS工艺制造的低功耗低价位通用编解码电路，PT2262/PT2272最多可有12位(A0-A11)三态地址端管脚(悬空,接高电平,接低电平),任意组合可提供531441地址码,PT2262最多可有6位(D0-D5)数据端管脚,设定的地址码和数据码从17脚串行输出，可用于无线遥控发射电路通过无线电遥控方式实现多通道控制。采用实现对受控电路选择控制当没有按键按下时，PT2262不接通电源，其17脚为低电平，所以发，当有按键按下时，PT2262得电工作，其第17脚输出经调制的串行数据信号，当17脚为高电平高频发射电路起振并发射等幅高频信号，当17脚为低平高频发射电路停止振荡，所以高频发射电路完全控于PT2262的17脚输出的数字信号在接收控制系统中关键词：无线电遥控解码芯片点评评语： （指导教师： 教授）Multi-channel Wireless Remote Control Device Receive Liu Fei (Computer Information, Statistics Class 0403) Abstract:This system introduces a multi-channel radio-controlled switching system design methods, elaborated on its composition and working principles. The method used chipset PT2262/2272, PT2262-IR/2272 is a band address, data encoding capabilities of the remote control transmit / receive integrated chip. Which launched PT2262-IR will chip carrier oscillator, encoders and fired in an integrated unit, to launch circuit simple, easy to use. Chip PT2272 receive the data output in accordance with its suffix vary, but its output data are temporary and latches in two forms, the design is based on the chip with latch function PT2272-L4. Transmitting and receiving terminal through radio-controlled manner to achieve multi-channel control. Launch systems using data-coding control keys to achieve the circuit controlled the choice of control, not when the button is depressed, PT2262 not connected to power, its Dout-(17 feet) for low-level, non-crystal oscillator frequency stabilization Work is not a signal modulation, when a button is depressed, PT2262, in the work, its 17 feet by the modulation of the output serial data signals, when 17 feet of high-, high-frequency transmitter, and other start-up and fired high - Frequency signal, when 17 feet of low-level, high-frequency transmitter to stop oscillation, the high-frequency transmitter PT2262 completely controlled by the 17 feet of output digital signal, th