A 55 MHz Integrated Crystal Oscillator with Chirp Injection Using a 28-nm Technology
Conference: SMACD / PRIME 2021 - International Conference on SMACD and 16th Conference on PRIME
07/19/2021 - 07/22/2021 at online
Proceedings: SMACD / PRIME 2021
Pages: 4Language: englishTyp: PDF
Authors:
Wang, Lantao; Arnold, Adrian; Meier, Jonas; Scholl, Markus; Wunderlich, Ralf; Heinen, Stefan (Chair of Integrated Analog Circuits and RF Systems, RWTH Aachen University, Aachen, Germany)
Abstract:
This paper presents an integrated crystal oscillator to provide a 55 MHz reference frequency for applications such as phase-locked loops. The crystal oscillator uses a Pierce oscillator architecture and achieves a phase noise of -152 dBc/Hz at 1 kHz offset. A chirp frequency injection technique is also applied, achieving a start-up time of 300 us with 335 nJ energy consumption. The circuit is