ISO15693非接触式IC卡射频前端电路的设计

ISO15693非接触式IC卡射频前端电路的设计ISO15693非接触式IC卡射频前端电路的设计
秦燕青，葛元庆
(清华大学微电子学研究所,北京 100084)

摘要：介绍了ISO15693非接触式IC卡射频前端电路，采用了一种巧妙的整流电路，提高了整流效率。同时 使用了一种适用于ISO15693非接触式卡片的简单的稳压电路结构，有助于信号的解调，并且使卡片在接收 到的信号为10%ASK和100%ASK两种调制模式时都能正常工作。芯片测试结果显示：电源产生电路能够产 生2.2V~3.8V的直流电压，解调电路能够在2.0V~3.8V电压下可靠稳定的工作；在ISO15693规定的最小场强 0.15A/M处，整个芯片的电源电压为3.3V,且功耗小于60μW。 关键词：ISO15693；非接触式IC卡；整流电路；电源产生电路；解调电路

Design of a RF front-end circuit of contactless IC cards for ISO15693
QIN Yan-qing, GE Yuan-qing
(Institute of Microelectronics, Tsinghua University, Beijing 100084, P.R.China)

Abstract: A RF front-end circuit is designed for contactless IC cards complying with ISO15693. A novel rectifier
is designed to enhance the efficiency of rectification. A simple limiter structure is introduced, which is applicable in contactless IC cards, and it is helpful t