一种应用于胎压监测系统的低功耗低频唤醒接收机  

Low-Power Low-Frequency Wake-up Receiver for Tire Pressure Monitoring System Applications

作　　者：杨艳军 陈鸣 钟福如 黄成强 YANG Yanjun;CHEN Ming;ZHONG Furu;HUANG Chengqiang(School of Physics and Electronic Science,Zunyi Normal University,Zunyi 563006,China;Institute of Microelectronics of the Chinese Academy of Sciences,Beijing 100029,China)

机构地区：[1]遵义师范学院物理与电子科学学院,贵州遵义563006 [2]中国科学院微电子研究所,北京100029

出　　处：《电子与封装》2024年第12期48-53,共6页Electronics & Packaging

基　　金：国家自然科学基金委地区基金(62164014);贵州省科技厅基础研究计划(黔科合基础-ZK[2021]一般330);遵义市科技计划项目(遵市科合HZ字〔2024〕141号)。

摘　　要：基于X-Fab 0.18μm CMOS工艺,设计实现了一种应用于胎压监测系统的低功耗低频唤醒接收机。采用参考源来为接收机的其他模块提供偏置,以减小温度和工艺参数的影响,同时采用电容耦合的方法来消除直流失调。该接收机采用幅移键控(ASK)解调方式,载波频率为125 kHz,数据传输速率为4 kbit/s。接收机的版图面积为0.11 mm^(2)。后仿真结果表明,在tm工艺角和1.8 V电源电压的条件下,该接收机工作电流为2.52μA;在各种工艺角下,电压灵敏度为0.4 mV(峰峰值),接收信号强度指示信号的对数线性误差小于+0.1/-0.2 dB。A low-power low-frequency wake-up receiver for tire pressure monitoring system applications is designed and implemented based on the X-Fab 0.18μm CMOS process.A reference source is used to bias the other modules of the receiver to minimize the effects of temperature and process parameters,and capacitive coupling method is used to eliminate DC offset.The receiver adopts amplitude shift keying(ASK)demodulation with a carrier frequency of 125 kHz and a data transmission rate of 4 kbit/s.The layout area of the receiver is 0.11 mm^(2).The post simulation results show that the current of the receiver is 2.52μA at tm process angle and a supply voltage of 1.8 V,the voltage sensitivity is 0.4 mV(peak-to-peak),and the log-linearity error of the received signal strength indicator is less than+0.1/-0.2 dB at various process angles.

关 键 词：胎压监测系统 低频唤醒接收机 接收信号强度指示 低功耗 

分 类 号：TN402[电子电信—微电子学与固体电子学]