Frequency reference for crystal free radio
Osama U. Khan, Brad Wheeler, David C. Burnett, Filip Maksimovic, Sahar Mesri, Kristofer S. J. Pister, Ali M. Niknejad · 2016
To reduce the cost of a sensor node, complete system integration implies zero external components. A system solution is therefore presented to calibrate the frequency of an on-chip relaxation oscillator to be used as a frequency reference for low power crystal free wireless communication.