Phase Locked Loop Circuit Based on Spin Oscillator

A phase-locked loop and oscillator technology, applied in the field of electronic circuits, can solve the problems of inability to meet the needs of high-frequency circuits, inability to integrate in chips, and low output frequency
CN106899292BActive Publication Date: 2020-04-24INST OF PHYSICS - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF PHYSICS - CHINESE ACAD OF SCI
Publication Date
2020-04-24

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Abstract

The invention discloses a phase locked loop circuit based on a spin oscillator. The phase locked loop circuit comprises a phase detector, a lowpass filter and the spin oscillator. When a control signal is applied to the spin oscillator, an oscillation signal is generated. The oscillation signal is output through the output end of the phase locked loop circuit and is fed back to the phase detector through a feedback loop which is connected with the output end of the phase locked loop circuit and the phase detector. The spin oscillator may comprise a spin injection layer and a magnetic precession layer arranged on the spin injection layer. When the spin injection layer receives non-spin polarized current input, spin polarized current output is generated. The magnetic precession layer is formed by a magnetic conductive material and receives a spin polarized current from the spin injection layer. In response to the spin polarized current, a magnetic torque of the magnetic precession layer generates precession, thereby generating the oscillation signal.
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Description

technical field

[0001] The present invention generally relates to electronic circuits, and more particularly, to a spin oscillator-based phase-locked loop circuit and an electronic circuit including the phase-locked loop circuit. Background technique

[0002] Phase-locked loop (PLL) is a commonly used electronic component, which is widely used in various electronic circuits and systems. figure 1 A typical phase locked loop 100 is shown, which includes a phase detector 110 , a low pass filter 120 and a voltage controlled oscillator 130 .

[0003] The phase detector 110 receives the input signal u i (t), which has frequency ω i , and also receive the output signal u fed back from the output terminal of the phase-locked loop 100 o (t), which has frequency ω o . The phase detector 110 detects the phase difference between these two signals, and converts the detected phase difference signal into a voltage signal u D (t) output. It should be noted that the voltage signal u o...

Claims

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