Title :
A low-power 433MHz transmitter for battery-less Tire Pressure Monitoring System
Author :
Zhu, Jinyu ; Wu, Liji ; Zhang, Xiangmin ; Jia, Chen ; Zhang, Chun
Author_Institution :
Tsinghua Nat. Lab. for Inf. Sci. & Technol., Tsinghua Univ., Beijing, China
Abstract :
A low-power 433MHz transmitter is designed using 0.18um CMOS process for battery-less TPMS. It is mainly composed of a PLL frequency synthesizer and a PA, and the transmitter is achieved in a fully integrated chip except for choke and output match inductor of PA. Based on post-simulation, locked time and phase noise of the PLL are respectively about 60us and -105dBm/Hz@300kHz, the power consumption of transmitter is 25mW when output power of PA is 7dBm. The area of the whole transmitter is 1mm × 1mm, including ESD pads. The sample chip is under fabrication1.
Keywords :
CMOS integrated circuits; low-power electronics; phase locked loops; CMOS process; PLL frequency synthesizer; battery-less TPMS; battery-less tire pressure monitoring system; choke; frequency 433 MHz; integrated chip; locked time; output match inductor; phase noise; transmitter power consumption; Frequency modulation; MOS devices; Monitoring; Phase frequency detector; Reliability engineering; Transmitters; OOK; PA; PLL; TPMS;
Conference_Titel :
ASIC (ASICON), 2011 IEEE 9th International Conference on
Conference_Location :
Xiamen
Print_ISBN :
978-1-61284-192-2
Electronic_ISBN :
2162-7541
DOI :
10.1109/ASICON.2011.6157152
