题目/Title：A wideband frequency-shift keying demodulator for wireless neural stimulation microsystems

作者/Author：
                        Mian Dong,Chun Zhang,Songping Mai,Zhihua Wang,Dongmei Li

会议/Conference：VLSI Design 2006

地点/Location：Hyderabad, India

年份/Issue Date：2006.3-7 Jan.

页码/pages：pp. 1056 - 1060

摘要/Abstract：
This paper presents a wideband frequency-shift keying (FSK) demodulator which is 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 a FSK carrier, and uses this clock to sample the data bits. The circuit occupies 0.03 mm2 in a 0.6 μm, 2M/2P, standard CMOS process, and consumes 0.25mW at 5V. This demodulator circuit is experimentally tested at the transmission speed up to 2.5Mbps while receiving a 5/10 MHz FSK carrier signal in a cochlear implant system.