Abstract
A fully integrated low-power and area-efficient ASK demodulator is presented. By using a controllable digital envelope detector and a self-biased clock extractor, the threshold-detection level of the demodulator can be adjusted and the clock from the wireless power carrier can be recovered. This implantable demodulator was fabricated in a 0.35 µm CMOS process and tested using inductively-coupled coils with a resonant frequency of 13.56 MHz.
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