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2006
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A Wideband Frequency-Shift Keying Demodulator for Wireless Neural Stimulation Microsystems

12 years 7 months ago
A Wideband Frequency-Shift Keying Demodulator for Wireless Neural Stimulation Microsystems
: This paper presents a wideband frequency-shift keying (FSK) demodulator suitable for a digital data transmission chain of wireless neural stimulation microsystems such as cochlear implants and retinal prostheses. The demodulator circuit derives a constant frequency clock directly from an FSK carrier, and uses this clock to sample the data bits. The circuit occupies 0.03 mm2 using a 0.6 ?m, 2M/2P, standard CMOS process, and consumes 0.25 mW at 5 V. This circuit was experimentally tested at transmission speed of up to 2.5 Mbps while receiving a 5~10 MHz FSK carrier signal in a cochlear implant system. Key words: Biomedical implants, CMOS, Demodulator, Frequency-shift keying (FSK), Cochlear implant doi:10.1631/jzus.2006.A1056 Document code: A CLC number: TN76
Mian Dong, Chun Zhang, Songping Mai, Zhihua Wang,
Added 01 Dec 2009
Updated 01 Dec 2009
Type Conference
Year 2006
Where VLSID
Authors Mian Dong, Chun Zhang, Songping Mai, Zhihua Wang, Dongmei Li
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