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
Link To Document :
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