Low-power balanced crystal oscillator

• Main Authors: Rajavi Yashar, Khalili Alireza, Taghivand Mazhareddin
• Format: Patent
• Language: English
• Published: 27.12.2016
• Subjects: BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; GENERATION OF NOISE BY SUCH CIRCUITS; GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING,BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN ANON-SWITCHING MANNER

A circuit includes: first and second output terminals; a reference resonator coupled between the first and second output terminals; a cross-coupled oscillation unit coupled to the first and second output terminals; a first MOSFET diode coupled to the cross-coupled oscillation unit, the first MOSFET diode including a first transistor, a first resistor coupled between gate and drain terminals of the first transistor, and a first capacitor; a second MOSFET diode coupled to the cross-coupled oscillation unit, the second MOSFET diode including a second transistor, a second resistor coupled between gate and drain terminals of the second transistor, and a second capacitor cross coupled between the drain terminal of the second transistor and the gate terminal of the first transistor, wherein the first capacitor is cross coupled between the drain terminal of the first transistor and the gate terminal of the second transistor.