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A 45μW injection-locked FSK Wake-Up receiver for crystal-less wireless body-area-network

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2 Author(s)
Joonsung Bae ; Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea ; Hoi-Jun Yoo

A dedicated ultra-low power fully integrated FSK wake-up receiver (WuRx) for wireless body area network (WBAN) is implemented in 0.18μm CMOS technology with 0.7V supply. An injection-locking digitally-controlled oscillator (ILDCO) enables power-efficient front end amplification, and autocalibration of DCO by successive approximation resister (SAR) algorithm. The fabricated 1mm2 single chip WuRx consumes 45μW with a data rate of 312kb/s, providing an 80MHz reference frequency with 0.25% stability to the main transceiver for crystal-less WBAN sensor nodes.

Published in:

Solid State Circuits Conference (A-SSCC), 2012 IEEE Asian

Date of Conference:

12-14 Nov. 2012