Abstract
Wireless mobile devices require two reference clocks, a low-noise high-frequency one and a low-power low-frequency one.
The circuit described in this paper implements a single-crystal oscillator which generates a 26–52 MHz clock and a 32 kHz clock. Its reconfigurable architecture allows to re-use the crystal and the tank capacitances in two different core oscillators, each of them being optimized for one clock independently from the other one.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
D. Griffith, F. Dulger, G. Feygin, A.N. Mohieldin, P. Vallur, A 65 nm CMOS DCXO system for generating 38.4 MHz and a real time clock from a single crystal in 0.09 mm2, in Radio Frequency Integrated Circuits Symposium (RFIC), 2010 IEEE, (IEEE, 2010), Anaheim, CA, USA, pp. 321–324
D. Ruffieux, A high-stability, ultra-low-power quartz differential oscillator circuit for demanding radio applications, in Proceedings of the 28th European Solid State Circuits Conference 2002, (ESSCIRC, 2002), Firenze, Italy, pp. 85–88
Acknowledgements
The authors wish to warmly thank Olivier Berchaud from ST-Ericsson for the efficient validation of the circuit.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 Springer International Publishing Switzerland
About this chapter
Cite this chapter
Chataigner, E., Dedieu, S. (2014). Dual Core Frequency Reference for Mobile Applications in 65-nm CMOS. In: Baschirotto, A., Makinwa, K., Harpe, P. (eds) Frequency References, Power Management for SoC, and Smart Wireless Interfaces. Springer, Cham. https://doi.org/10.1007/978-3-319-01080-9_4
Download citation
DOI: https://doi.org/10.1007/978-3-319-01080-9_4
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-01079-3
Online ISBN: 978-3-319-01080-9
eBook Packages: EngineeringEngineering (R0)