Title :
Low-power, high-data-rate, BPSK demodulator for implantable biomedicai applications
Author :
Javid, Ardavan ; Vahedian, Hanif ; Sodagar, Amir M. ; Mofrad, Mehdi Ehsanian
Author_Institution :
ECE Dept., K.N. Toosi Univ. of Technol., Tehran, Iran
Abstract :
A novel ultra-low power non-coherent BPSK demodulator for biomedical implants is presented. The proposed demodulation technique is based on utilizing a delayed and digitized form of the input signal for the detection of the received data and also for retrieving a synchronized clock signal. The BPSK demodulator circuit proposed in this work is capable of operating at a carrier frequency of 10 MHz with a data-rate-to-carrier-frequency (DRCF) of up to 100%. Designed and simulated in a 0.18-μm standard N-Well CMOS technology, the circuit consumes 27.2μW@1.8V. The proposed demodulation concept was also realized on a proof-of-concept prototype circuit board.
Keywords :
demodulators; phase detectors; phase shift keying; prosthetics; BPSK demodulator circuit; DRCF frequency; binary phase shift keying demodulator circuit; biomedical implant demodulator; data-rate-to-carrier-frequency; delayed input signal form; demodulation technique; digitized input signal form; high-data binary phase shift keying demodulator; high-data-rate BPSK demodulator; implantable biomedical applications; noncoherent BPSK demodulator; noncoherent binary phase shift keying demodulator; proof-of-concept prototype circuit board; received data detection; standard N-Well CMOS technology; synchronized clock signal retrieval; ultra low-power BPSK demodulator; ultra low-power binary phase shift keying demodulator; Binary phase shift keying; Circuits and systems; Demodulation; Implants; Synchronization; Wireless communication; biomedical implants; data detection and clock recovery; non-coherent BPSK demodulation;
Conference_Titel :
Electronics, Circuits and Systems (ICECS), 2014 21st IEEE International Conference on
DOI :
10.1109/ICECS.2014.7050010
