A fully integrated 39.8-/43-GHz VCO - featuring wide tuning range and low temperature drift - for single-chip MUX/DEMUX LSIs

28 September 2004

conference paper
Published by Institute of Electrical and Electronics Engineers (IEEE)

p. 317-320
https://doi.org/10.1109/rfic.2004.1320608

Abstract

A fully integrated 39.8-/43-GHz switchable VCO was developed for practical single-chip MUX/DEMUX LSIs in 0.18 /spl mu/m SiGe BiCMOS technology . The VCO provides a clock signal for data rates of 39.8 and 43.0 Gbps. The VCO has a novel configuration of a half-frequency VCO and a frequency doubler to realize a 7 GHz tuning range, for tolerating process deviation and supporting dual mode operation. A new temperature compensation technique resulted in a 0.6% temperature fluctuation of oscillation frequency. Measured phase noise at a 1 MHz offset frequency was -85.0 dBc/Hz. Data transmission experiments between the MUX and DEMUX confirmed that this phase noise is allowable for use in 40-Gbps class network systems.

Keywords

This publication has 1 reference indexed in Scilit:

Millimeter-wave VCOs with wide tuning range and low phase noise, fully integrated in a SiGe bipolar production technology
IEEE Journal of Solid-State Circuits, 2003