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F-type voltage-controlled oscillation circuit and temperature compensation method thereof

A voltage-controlled oscillation circuit and voltage-controlled oscillation technology, which is applied to power oscillators, electrical components, etc., can solve the problems of voltage-controlled oscillation circuit output frequency frequency offset, reduce the reliability of phase-locked loop, etc., and achieve compensation for frequency offset. Effect

Pending Publication Date: 2021-10-29
成都爱旗科技有限公司
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  • Abstract
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Problems solved by technology

[0003] In the prior art, changes in the ambient temperature will cause a frequency shift in the output frequency of the voltage-controlled oscillating circuit, reducing the reliability of the phase-locked loop

Method used

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  • F-type voltage-controlled oscillation circuit and temperature compensation method thereof
  • F-type voltage-controlled oscillation circuit and temperature compensation method thereof
  • F-type voltage-controlled oscillation circuit and temperature compensation method thereof

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Embodiment Construction

[0021] In order to clearly describe the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, words such as "first" and "second" are used to distinguish the same or similar items with basically the same function and effect. For example, the first threshold and the second threshold are only used to distinguish different thresholds, and their sequence is not limited. Those skilled in the art can understand that words such as "first" and "second" do not limit the number and execution order, and words such as "first" and "second" do not necessarily limit the difference.

[0022] It should be noted that, in the present invention, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "ex...

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PUM

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Abstract

The invention discloses an F-type voltage-controlled oscillation circuit and a temperature compensation method thereof, relates to the technical field of integrated circuits, used for compensating frequency deviation generated by a voltage-controlled oscillation sub-circuit due to environment temperature change. The F-type voltage-controlled oscillation circuit comprises a voltage-controlled oscillation sub-circuit and a compensation circuit. The compensation circuit comprises a current generation circuit and a voltage generation circuit, the output end of the current generation circuit is electrically connected with the first end of the voltage generation circuit and the target capacitor of the voltage-controlled oscillation sub-circuit, and the second end of the voltage generation circuit is electrically connected with the grounding end. The current generating circuit is used for providing adjusting current related to the environment temperature for the voltage generating circuit. The voltage generation circuit generates a regulation voltage according to the regulation current. The regulating voltage is used for regulating the capacitance of a target capacitor in the voltage-controlled oscillation sub-circuit. The F-type voltage-controlled oscillation circuit provided by the technical scheme is applied to the temperature compensation method.

Description

technical field [0001] The invention relates to the technical field of integrated circuits, in particular to a Class F voltage-controlled oscillation circuit and a temperature compensation method thereof. Background technique [0002] The voltage-controlled oscillator circuit refers to an oscillator circuit (English abbreviation: VCO) whose output frequency corresponds to the input control voltage, and whose output frequency is directly related to the input control voltage. The voltage-controlled oscillating circuit is an important part of the phase-locked loop. As the temperature of the communication system's working environment changes, the reliability requirements of the phase-locked loop also increase. Therefore, the requirements for the voltage-controlled oscillator circuit also increase accordingly. [0003] In the prior art, changes in the ambient temperature will cause a frequency shift in the output frequency of the voltage-controlled oscillating circuit, reducing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03B5/04
CPCH03B5/04
Inventor 陈东海
Owner 成都爱旗科技有限公司
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