一种5μA,0.5mVpp用于胎压监测系统的125kHz低频唤醒接收机  

5μA 0.5 mVpp Low Frequency Wake-up Receiver for Tire Pressure Monitoring System

作　　者：康钦淼 乌力吉[1] 张向民[1] 姜汉钧[1] 

机构地区：[1]清华大学微电子学研究所,北京100084

出　　处：《微电子学与计算机》2016年第3期15-19,24,共6页Microelectronics & Computer

摘　　要：为了降低胎压监测系统中胎内监测模块的功耗,采用125kHz低频唤醒通信链路实现主动监测以降低胎内监测模块的功耗,延长锂电池的寿命.125kHz低频唤醒接收机大部分时间都处于监听模式,需要对电路进行充分的低功耗设计分析.针对125kHz低频唤醒通信链路中的接收机,采用上海先进半导体有限公司（ASMC）的0.35μm5~40VBCD汽车电子工艺设计一款低频唤醒接收机,该接收机的总面积为1.4mm^2,核心面积为0.48mm^2.经过流片和测试验证,该接收机的后仿真功耗为4.72μA.测试得到的灵敏度指标为0.5mVpp,最大数据率为35kb/s,该接收机能够很好地满足胎压监测系统低频唤醒的要求.In order to reduce the power consumption of tire monitoring module in the tire pressure monitoring system, adopting the 125 kHz low-frequency wake-up communication link achieve proactive monitoring to reduce tire monitoring module＇s power consumption to extend the life of lithium batteries. Most of the time, 125 kHz low-frequency wake-up receiver is in monitoring mode, so it is essential to take an low-power design analysis. As for the receiver in 125 kHz low-frequency wake-up communication link, adopting Shanghai ASMC＇ s 0. 35μm 5V-40V BCD automotive electronic technology to design the low-frequency wake-up receiver, total area of the receiver is 1. 4 mm^2 , and core area is 0. 48 mm^2. After tapeout and test validation, post-simulation power consumption of the receiver is 4. 72μA. Tested Sensitivity is 0. 5mVpp, the maximum tested data rate is 35Kbps, and the receiver can satisfy the tire pressure monitoring system low-frequency wake-up request.

关 键 词：胎压监测系统 低频唤醒 ASK 接收机 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]