Title :
A 2.1 MHz Crystal Oscillator Time Base with a Current Consumption under 500 nA
Author :
Aebischer, D. ; Oguey, H. ; Von Kaenel, V.
Author_Institution :
Swiss Center for Micro-Electronics and Microtechnology (CSEM), Maladiÿre 71, CH-2007 Neuchâtel, Switzerland. tel. + 41 38 205 111, fax. + 41 38 205 770, Email: daniel.aebischer@csemne.ch
Abstract :
A micro-power circuit is encapsulated with a 2.1 MHz ZT-cut quartz in a vacuum package. The oscillator core has 2 complementary active MOSFETS and amplitude stabilization. New coupling and biasing circuits, and dynamic frequency dividers allow to achieve ±2 ppm frequency stability down to 1.8 V with a current under 0.5 ¿A.
Keywords :
Circuit optimization; Coupling circuits; Energy consumption; Frequency conversion; MOSFETs; Packaging; Parasitic capacitance; Signal resolution; Transconductance; Voltage-controlled oscillators;
Conference_Titel :
Solid-State Circuits Conference, 1996. ESSCIRC '96. Proceedings of the 22nd European
Conference_Location :
Neuchatel, Switzerland
Print_ISBN :
2-86332-197-8
