Title :
A 10pJ/bit 135Mbps IR-UWB transmitter using pulse position modulation and with on-chip LDO regulator in 0.13µm CMOS for biomedical implants
Author :
Elzeftawi, Mohamed ; Theogarajan, Luke
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of California Santa Barbara, Santa Barbara, CA, USA
Abstract :
This paper describes a compact low-power high-datarate impulse radio ultra wideband (IR-UWB) transmitter IC for biomedical implants. The transmitter is powered through an on-chip low-dropout (LDO) regulator to tune its oscillation frequency which, together with the pulse width control, ensures that the transmitted pulse´s power spectral density (PSD) fits within the FCC mask and has a BW ≥ 500MHz. The transmitter uses pulse position modulation (PPM) and the maximum measured datarate is 135Mbps with a figure of merit of 10pJ/bit. The chip is fabricated in 0.13μm CMOS. The core VCO occupies (35 × 125)μm2 area, while the area of both the regulator and the PPM oscillator is (0.325 × 0.17)mm2.
Keywords :
CMOS integrated circuits; biomedical electronics; lab-on-a-chip; prosthetics; pulse position modulation; pulse width modulation; radio transmitters; telemedicine; ultra wideband communication; CMOS; FCC mask; PPM oscillator; bandwidth 500 MHz; biomedical implant; impulse radio ultrawideband transmitter; low-power-high datarate IR-UWB transmitter IC; on-chip LDO regulator; on-chip low-dropout regulator; oscillation frequency tuning; pulse position modulation; pulse power spectral density transmission; pulse width control; size 0.13 mum; FCC; Modulation; Radio transmitters; Regulators; Voltage-controlled oscillators; High-datarate biotelemetry; IR-UWB transmitter; LDO regulator; PPM; implants; low-power wireless;
Conference_Titel :
Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS), 2013 IEEE Topical Conference on
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4673-2930-9
DOI :
10.1109/BioWireleSS.2013.6613667
