A 350-mV 2.4GHz Quadrature Oscillator with Nearly Instantaneous Start-Up Using Series LC Tanks

Chen, Yue; Babaie, Masoud; Staszewski, R.B.

A 350-mV 2.4GHz Quadrature Oscillator with Nearly Instantaneous Start-Up Using Series LC Tanks

Conference paper (2017)

Authors

Yue Chen Electronics -

Masoud Babaie Electronics -

R.B. Staszewski Electronics - , University College Dublin

Research Group

Electronics () (TU Delft)

Series LC tank LC oscillator Quadrature oscillator Ring oscillator (RO) Low supply Fast start-up

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Published Date

2017

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Electronics

Abstract

We propose a ring-based quadrature LC-tank oscillator for Internet-of-Things (IoT) that can operate under a 350-mV supply voltage of energy harvesters. The oscillator is based on a series LC tank, with additional control circuitry to realize a nearly instantaneous start-up of one/two RF cycles to facilitate a deeply duty-cycled burst-mode operation of IoT. Fabricated in TSMC 28nm CMOS, the prototype consumes less than 1.3mW from 350mV supply and 0.07mm2 in area, while achieving phase noise of better than −118dBc/Hz @3MHz. Frequency tuning range is 2.24∼2.61GHz

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