An Energy-Efficient Self-Charged Crystal Oscillator with a Quadrature-Phase Shifter Technique
Journal
IEEE Asian Solid-State Circuit Conference
Pages
577-584
Date Issued
2017
Author(s)
Abstract
An energy-efficient self-charged crystal oscillator (SCXO) employing a quadrature-phase shifter is proposed to provide wide-range pulse injection timing for power consumption reduction. The passive resistors of quadrature-phase shifter can be shared by the startup circuit to save area consumption. The double-edge extractor and the low-power comparator are added to reduce the power consumption. The proposed 32.768-kHz energy-efficient SCXO, fabricated in a 40-nm CMOS technology, consumes 34.3 nW under a 1 V supply. © 2017 IEEE.
Subjects
32.768-kHz; Double-edge extractor; Low-power comparator; Quadrature-phase shifter; Self-chargedcrystal oscillator (SCXO)
SDGs
Other Subjects
Comparators (optical); Crystal oscillators; Electric power utilization; Phase shifters; 32.768-kHz; Double-edge extractor; Low power comparator; Quadrature phase; Self-chargedcrystal oscillator (SCXO); Energy efficiency
Type
conference paper