433m/315m无线解码资料，基于PT2272芯片自作。编码芯片PT2262发出的编码信号由：地址码、数据码、同步码组成一个完整的码字，解码芯片PT2272接收到信号后，其地址码经过两次比较核对后，VT脚才输出高电平，与此同时相应的数据脚也输出高电平，如果发送端一直按住按键，编码芯片也会连续发射。当发射机没有按键按下时，PT2262不接通电源，其17脚为低电平，所以315MHz的高频发射电路不工作，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脚为高电平期间315MHz的高频发射电路起振并发射等幅高频信号，当17脚为低平期间315MHz的高频发射电路停止振荡，所以高频发射电路完全收控于PT2262的17脚输出的数字信号，从而对高频电路完成幅度键控（ASK调制）相当于调制度为100％的调幅。-433m/315m wireless decode data, based on self-made PT2272 chip. Encoded signal emitted by the chip PT2262: address code, data code, to form a complete synchronization code codeword, decoder chip PT2272 received signal, which address code after two comparison check, VT pin only output high, At the same time the corresponding data feet high output, if the sender has been holding down the button will continuously transmit coded chip. When the transmitter is no button is pressed, PT2262 no power, its 17 feet low, so the high-frequency transmitter circuit 315MHz does not work, when a key is pressed, PT2262 electrical work, its 17-pin output modulated serial data signal, when 17 feet high during 315MHz frequency transmitter circuit start-up and launch a high-frequency signal amplitude, when 17 feet during the flat 315MHz frequency transmitter circuit stops oscillating, so high transmitter frequency control circuit is completely closed PT2262 digital signal output of 17 feet, and thus high-fr