阅读说明：本技术 一种振荡器及设备 (Oscillator and equipment ) 是由 时锴 卢磊 于 2019-04-04 设计创作，主要内容包括：本申请提供一种振荡器及设备,涉及电子技术领域,用于提高振荡器的性能。所述振荡器,包括：谐振电路,用于产生振荡信号；第一交叉耦合管,耦合至所述谐振电路；供电电路,用于基于第一电压和第二电压为所述第一交叉耦合管提供电源信号,所述第一电压为电源电压,所述第二电压为外部传感电路生成的电压。由于振荡器的振荡频率会随着振荡器的电源信号的变化而变化,通过调节该电源信号即可对该振荡器的振荡频率进行补偿,从而提高了振荡器的性能,同时能够减小该振荡器的占用面积,简化振荡器的设计难度。(The application provides an oscillator and equipment, relates to electron technical field for improve the performance of oscillator. The oscillator includes: a resonant circuit for generating an oscillating signal; a first cross-coupled tube coupled to the resonant circuit; and the power supply circuit is used for providing a power supply signal for the first cross-coupled tube based on a first voltage and a second voltage, wherein the first voltage is a power supply voltage, and the second voltage is a voltage generated by the external sensing circuit. Because the oscillation frequency of the oscillator can change along with the change of the power supply signal of the oscillator, the oscillation frequency of the oscillator can be compensated by adjusting the power supply signal, thereby improving the performance of the oscillator, simultaneously reducing the occupied area of the oscillator and simplifying the design difficulty of the oscillator.)

An oscillator, comprising:

a resonant circuit for generating an oscillating signal;

a first cross-coupled tube coupled to the resonant circuit;

and the power supply circuit is used for providing a power supply signal for the first cross-coupled tube based on a first voltage and a second voltage, wherein the first voltage is a power supply voltage, and the second voltage is a voltage generated by the external sensing circuit.

The oscillator of claim 1, wherein the first voltage is a fixed voltage and the second voltage is a variable voltage.

The oscillator according to claim 1 or 2, wherein the power supply signal provided by the power supply circuit is a voltage signal or a current signal.

The oscillator of claim 3, wherein when the power signal is the voltage signal, the power supply circuit comprises an adder configured to add the first voltage and the second voltage to obtain the voltage signal.

The oscillator according to claim 3, wherein when the power signal is the current signal, the power supply circuit comprises a power supply MOS transistor, a source of the power supply MOS transistor is configured to receive the first voltage, a gate of the power supply MOS transistor is configured to receive the second voltage, and a drain of the power supply MOS transistor is configured to output the current signal.

The oscillator according to any one of claims 1 to 5, wherein the external sensing circuit is configured to generate the second voltage according to a temperature; or, the external sensing circuit is used for generating the second voltage according to mechanical pressure; alternatively, the external sensing circuit is configured to generate the second voltage according to mechanical vibration.

The oscillator as claimed in any one of claims 1 to 6, wherein the first cross-coupled transistor comprises a first MOS transistor and a second MOS transistor; the source electrode of the first MOS tube and the source electrode of the second MOS tube are coupled to a first node, the grid electrode of the first MOS tube and the drain electrode of the second MOS tube and the first end of the resonant circuit are coupled to a second node, the drain electrode of the first MOS tube and the grid electrode of the second MOS tube and the second end of the resonant circuit are coupled to a third node, and the first node is used for receiving the power supply signal.

The oscillator according to any one of claims 1 to 7, further comprising a second cross-coupled transistor, wherein the second cross-coupled transistor comprises a third MOS transistor and a fourth MOS transistor, a source of the third MOS transistor and a source of the fourth MOS transistor are coupled to a fourth node, a gate of the third MOS transistor and a drain of the fourth MOS transistor and a first end of the resonant circuit are coupled to a second node, a drain of the third MOS transistor and a gate of the fourth MOS transistor and a second end of the resonant circuit are coupled to a third node, and the fourth node is coupled to a positive power supply terminal or a negative power supply terminal.

The oscillator according to claim 7 or 8, wherein the resonance circuit comprises: the inductor comprises an inductor, a first variable capacitance tube, a second variable capacitance tube and a switch capacitor array, wherein two ends of the inductor are respectively coupled to the second node and the third node, one end of the first variable capacitance tube is coupled with one end of the second variable capacitance tube, the other end of the first variable capacitance tube and the other end of the second variable capacitance tube are respectively coupled to the second node and the third node, and two ends of the switch capacitor array are respectively coupled to the second node and the third node.

The oscillator according to any one of claims 1 to 9, further comprising:

and the digital-to-analog converter is used for converting the digital voltage into an analog voltage to obtain the second voltage when the voltage generated by the external sensing circuit is the digital voltage.

An oscillator-based apparatus, the apparatus comprising: a radio frequency circuit, and an oscillator as claimed in any one of claims 1 to 10; wherein the oscillator is configured to provide a local carrier signal to the radio frequency circuit.