CMOS implementation of a low-power BPSK demodulator for wireless implantable neural command transmission  

作　　者：吴朝晖 张旭 梁志明 李斌 

机构地区：[1]Institute of Microelectronics,School of Electronic and Information Engineering,South China University of Technology [2]State Key Laboratory on Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences

出　　处：《Journal of Semiconductors》2012年第5期113-119,共7页半导体学报（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Nos.60976026,61076023);the National Basic Research Program of China(No.2011CB933203);the Fundamental Research Funds for the Central Universities,SCUT(No.2009ZM0196)

摘　　要：A new BPSK demodulator was presented.By using a clock multiplier with very simple circuit structure to replace the analog multiplier in the traditional BPSK demodulator,the circuit structure of the demodulator became simpler and hence its power consumption became lower.Simpler structure and lower power will make the designed demodulator more suitable for use in an internal single chip design for a wireless implantable neural recording system.The proposed BPSK demodulator was implemented by Global Foundries 0.35μm CMOS technology with a 3.3 V power supply.The designed chip area is only 0.07 mm;and the power consumption is 0.5 mW.The test results show that it can work correctly.A new BPSK demodulator was presented.By using a clock multiplier with very simple circuit structure to replace the analog multiplier in the traditional BPSK demodulator,the circuit structure of the demodulator became simpler and hence its power consumption became lower.Simpler structure and lower power will make the designed demodulator more suitable for use in an internal single chip design for a wireless implantable neural recording system.The proposed BPSK demodulator was implemented by Global Foundries 0.35μm CMOS technology with a 3.3 V power supply.The designed chip area is only 0.07 mm^2 and the power consumption is 0.5 mW.The test results show that it can work correctly.

关 键 词：CMOS integrated circuits low-power BPSK demodulator implantable biomedical devices wireless command transmission 

分 类 号：TN763[电子电信—电路与系统]