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LC tank of the resonator

A capacitor tank and tuning capacitor technology, applied in the direction of inductors, power oscillators, printed inductors, etc., can solve problems such as difficult control

Active Publication Date: 2019-04-02
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the behavior of frequency trimming is not a linear curve, some of these schemes suffer from component variations, others are difficult to control

Method used

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  • LC tank of the resonator
  • LC tank of the resonator
  • LC tank of the resonator

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Embodiment Construction

[0017] Certain terms are used in the description and claims to refer to particular elements. Those skilled in the art should understand that a manufacturer may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. The "comprising" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". Otherwise, the term "coupled" includes any direct and indirect means of electrical connection. Therefore, if it is described herein that a first device is coupled to a second device, it means that the first device may be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means.

[0018] figure 1 is a schematic diagram of an LC cell according to a ...

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Abstract

The present invention provides an inductor-capacitor tank, which includes a first inductor and a first tunable capacitor array. The first inductor has a first terminal and a second terminal; and the first tunable capacitor array has a first terminal and a second terminal. wherein the first tunable capacitor array includes a plurality of independently controlled tunable capacitor units, the path branches from the first point between the first terminal and the second terminal of the first inductor, the first tunable capacitor array The first terminal is coupled to the first point, and the second terminal of the first tunable capacitor array and the second terminal of the first inductor are coupled to a reference voltage. The present invention can have better resistance to equipment changes.

Description

technical field [0001] The present invention relates to a circuit design, and more particularly, to an inductor capacitor (LC) tank for a resonator. Background technique [0002] For the resonator set (resonator set), in the design of coil-based LC tanks, such as LC voltage-controlled oscillator (VCO) or LC digital-controlled oscillator (VCO), in the semiconductor manufacturing process Variations are always a matter of concern. Over the years, some designs have been used to improve yields. Because the behavior of frequency trimming is not a linear curve, some of these schemes suffer from component variations and others are difficult to control. [0003] An important issue in this field is how to design LC cells that are resistant to process variations, which can also be accurately tuned and efficiently calibrated. Contents of the invention [0004] In order to solve the above problems, the present invention provides an inductance-capacitance tank, which can have better ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03B5/18
CPCH03B5/18H03H5/12H01F2017/0073H01F17/0006H03H7/0115
Inventor 王崑印邱威豪林昂生
Owner MEDIATEK INC