Title :
A non-coherent BPSK receiver with dual band filtering for implantable biomedical devices
Author :
Wilkerson, Benjamin P. ; Jin-Ku Kang
Author_Institution :
Dept. of Electron. Eng., Inha Univ., Incheon, South Korea
Abstract :
This paper describes a low-power non-coherent BPSK demodulator with an inductive power-self-recovery and a data-clock-recovery circuit for implantable biomedical devices. The proposed demodulator adopts the dual band filtering technique and a digital deglitching circuit for recovering the timing and data. The inductive link uses a coupling factor k of 0.5. The recovered power regulator produces a single 1.8V power supply. In simulation with a 0.18μm CMOS technology the power-consumption of BPSK demodulator is only 82μW with a 2MHz carrier frequency, 1Mbps data rate, and 250μA internal load.
Keywords :
CMOS integrated circuits; biomedical electronics; demodulators; inductive power transmission; phase shift keying; power supplies to apparatus; prosthetics; radio receivers; synchronisation; CMOS technology; bit rate 1 Mbit/s; current 250 muA; data clock recovery circuit; data recovery; digital deglitching circuit; dual band filtering; frequency 2 MHz; implantable biomedical devices; inductive link; inductive power self recovery; low power noncoherent BPSK demodulator; noncoherent BPSK receiver; power 82 muW; size 0.18 mum; timing recovery; voltage 1.8 V; Binary phase shift keying; Clocks; Delay; Demodulation; Implantable biomedical devices; Receivers; Universal Serial Bus;
Conference_Titel :
Electronics, Circuits and Systems (ICECS), 2012 19th IEEE International Conference on
Conference_Location :
Seville
Print_ISBN :
978-1-4673-1261-5
Electronic_ISBN :
978-1-4673-1259-2
DOI :
10.1109/ICECS.2012.6463630
