DocumentCode
3189633
Title
A Wideband Wireless Micro-Stimulating AISC for Cochlear Implant
Author
Dong, Mian ; Zhang, Chun ; Mai, Songping ; Wang, ZhiHua ; Li, DongMei
Author_Institution
Department of Electronic Engineering, Tsinghua University, Beijing, China
fYear
2005
fDate
13-15 Dec. 2005
Firstpage
274
Lastpage
278
Abstract
This paper presents a wireless micro-stimulating ASIC for cochlear prosthesis application, to restore auditory function in profoundly deaf individuals. A new wideband frequency-shift keying (FSK) demodulator is designed to guarantee the high bandwidth of the digital data transmission chain. The demodulator circuit derives a constant frequency clock from FSK carrier directly, and uses this clock to sample the data bits. The circuit is experimentally tested at the stimulus rate up to 75k pulses per second with transmission speed of 2.5Mbps while receiving a 5M/10MHz FSK carrier signal. The whole circuit occupies 7.5 mm2in a 0.6 μm, 2M/2P, standard CMOS process, and consumes 12.5mW at 5V.
Keywords
Application specific integrated circuits; Bandwidth; Circuit testing; Clocks; Cochlear implants; Deafness; Demodulation; Frequency shift keying; Prosthetics; Wideband;
fLanguage
English
Publisher
ieee
Conference_Titel
Microelectronics, 2005. ICM 2005. The 17th International Conference on
Print_ISBN
0-7803-9262-0
Type
conf
DOI
10.1109/ICM.2005.1590084
Filename
1590084
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