Ultra-low supply voltage crystal quartz oscillator.

Area of Science:

• Electronics
• Materials Science
• Physics

Background:

• Conventional oscillators often require higher supply voltages and consume more power.
• Miniaturization and low-power operation are critical for modern electronic devices, especially for radio applications.

Purpose of the Study:

• To propose and demonstrate an ultra-low-voltage crystal quartz oscillator.
• To achieve significant reductions in power consumption compared to existing technologies.

Main Methods:

• Utilizing a High Electron Mobility Transistor (HEMT) operating in an unsaturated DC regime.
• Employing a quartz resonator as a resonant impedance transformer.

Main Results:

• A 25 MHz prototype demonstrated stable oscillations at supply voltages below 17 mV.
• Achieved ultra-low power consumption of approximately 300 nW.
• Performance is 1-2 orders of magnitude better than current oscillators.

Conclusions:

• The proposed oscillator design is highly effective for ultra-low power applications.
• This technology is suitable for developing low-consumption radio devices, including those operating at low temperatures.