Title :
A 80-uW 2-Mb/s transceiver for human body channel binaural communication
Author :
Jhih-Cing Sun ; Jou-Ling Chen ; Yi-Hung Shen ; Shiu-Chain You ; Shyh-Jye Jou ; Tzu-Hsien Sang
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
We use a body channel and a low-power transceiver design to achieve binaural communication for hearing aids. The measured bandwidth of the body channel is 1 MHz to 7.5 MHz. The transmitter encodes and transmits data of 2-Mb/s and 1-V peak-to-peak square waveform to the electrodes connected to the body. The receiver includes an analog front end (AFE), an all-digital data recovery circuit and a decoder. This chip is implemented with a 65-nm CMOS process using 0.5-V supply in the digital transceiver and 1-V supply in the AFE. When working at 2 Mb/s, the power consumption is only 80 uW.
Keywords :
CMOS integrated circuits; biomedical electrodes; biomedical electronics; encoding; hearing; hearing aids; low-power electronics; medical signal processing; power consumption; transceivers; waveform analysis; CMOS process; all-digital data recovery circuit; analog front end; chip; data transmission; decoder; electrodes; frequency 1 MHz to 7.5 MHz; hearing aids; human body channel binaural communication; low-power transceiver; peak-to-peak square waveform; power 80 muW; power consumption; size 65 nm; transmitter encoding; voltage 0.5 V; Clocks; Electrodes; Electromagnetic waveguides; Hearing aids; Receivers; Transceivers; Transmitters;
Conference_Titel :
Biomedical Circuits and Systems Conference (BioCAS), 2012 IEEE
Conference_Location :
Hsinchu
Print_ISBN :
978-1-4673-2291-1
Electronic_ISBN :
978-1-4673-2292-8
DOI :
10.1109/BioCAS.2012.6418487
