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设计了一种工作频率为１２５ｋＨｚ，用于身份识别的非接触式ＩＣ卡。分析了系统结构和工作原理，讨论了非接触式ＩＣ卡的“心脏”——卡内芯片的电路结构。最后，简要地介绍了芯片的版图设计、测试结果及其典型应用。
A non-contact IC card with a working frequency of 125kHz is designed for identification. The system structure and working principle are analyzed. The “heart” of non-contact IC card is discussed. Finally, a brief introduction to the chip layout design, test results and typical applications.