5 μA 0.5 mVpp Low Frequency Wake-up Receiver for Tire Pressure Monitoring System[J]. 2016, 33(3): 15-19.DOI:
5 μA 0.5 mVpp Low Frequency Wake-up Receiver for Tire Pressure Monitoring System
摘要
为了降低胎压监测系统中胎内监测模块的功耗
采用125 kHz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.125 kHz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125 kHz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0.35 μm 5~40 V BCD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1.4 mm
核心面积为0.48 mm.经过流片和测试验证
该接收机的后仿真功耗为4.72 μA.测试得到的灵敏度指标为0.5 mVpp
最大数据率为35 kb/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.
Abstract
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 modules 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 ASMCs 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
and core area is 0.48 mm. After tapeout and test validation
post-simulation power consumption of the receiver is 4.72 μA. 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.