A CMOS harmonic signal LC oscillator driver for automotive applications working in a harsh environment with high safety critical requirements is described. The driver can be used with a wide range of external components parameters (LC resonance network of a sensor). Quality factor of the external LC network can vary two decades. Amplitude regulation of the driver is digitally controlled and the DAC is constructed as exponential with piece-wise-linear (PWL) approximation. Low current consumption for high quality resonance networks is achieved. Realized oscillator is robust, used in safety critical application and has low EMC emissions.
Cite
@article{arxiv.0710.4831,
title = {LC Oscillator Driver for Safety Critical Applications},
author = {Pavel Horsky},
journal= {arXiv preprint arXiv:0710.4831},
year = {2011}
}
Comments
Submitted on behalf of EDAA (http://www.edaa.com/)