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LM1871和LM1872是大规模无线电遥控集成电路。LM1871用于发射脉冲编码调制的高额信号;而LM1872则用于接收脉冲编码调制的高频信号。这两种集成电路体积都很小,所需外围电路元件少而简单,而且调试方便,具有较高的实用价值。它们不仅可用于组成无线电控制开关、遥控电子玩具、防盗报警器、红外线数据传输等,而且稍加一些外围电路,还可完成远距遥控功能。
The LM1871 and LM1872 are large scale radio remote integrated circuits. The LM1871 is used to transmit high-level signals that are pulse-code modulated while the LM1872 is used to receive high-frequency signals that are pulse-code modulated. The two integrated circuits are small in size, require less peripheral circuit components and simple, and debugging convenient, with high practical value. They not only can be used to form a radio control switch, remote control electronic toys, burglar alarm, infrared data transmission, and a little more peripheral circuits, but also to complete remote control functions.