Title :
Dedicated ICs for wearable body sound monitoring
Author :
Zhaoyang Weng;Shaoquan Gao;Jingjing Dong;Kai Yang;Hanjun Jiang;Fule Li;Zhihua Wang;Yanqing Ning;Xinkai Chen
Author_Institution :
Tsinghua National Laboratory for Info. Sci. & Tech., Institute of Microelectronics, Tsinghua University, Beijing, China
Abstract :
A highly integrated chipset for wearable wireless body sound sensor is presented. It consists of a body sound sensor readout chip and a 400M-440MHz short range wireless transceiver chip. The sensor readout chip consists of a programmable preamplifier and an over-sampling ADC, and it consumes no more than 80μA current from 1.2V power supply. In the transceiver chip, the transmitter adopts a direct up-conversion architecture and delivers +6dBm maximum output power. The receiver employs zero-IF architecture, and it achieves a sensitivity of -93dBm @ 1Mbps MSK modulation. A body sound sensor prototype has been implemented using this chipset.
Keywords :
"Transceivers","Integrated circuits","Wireless sensor networks","Wireless communication","Receivers","Gain","Biomedical monitoring"
Conference_Titel :
Solid-State Circuits Conference (A-SSCC), 2015 IEEE Asian
DOI :
10.1109/ASSCC.2015.7387461
