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Resonant clock circuit

A clock circuit, resonant inductor technology, applied in electrical components, power oscillators, etc., can solve the problem that the resonant frequency of the resonant clock circuit cannot be adjusted.

Pending Publication Date: 2020-01-14
苏州芯算力智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, an embodiment of the present invention provides a resonant clock circuit to solve the problem in the prior art that the resonant frequency in the resonant clock circuit cannot be adjusted

Method used

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  • Resonant clock circuit

Examples

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Embodiment 1

[0024] According to an embodiment of the present invention, a resonant clock circuit is provided, such as figure 1 As shown, the resonant clock circuit includes: clock driver Buffer, clock grid C mesh , decoupling capacitor C decap and resonant inductor unit 1. The resonant inductance unit 1 includes two resonant inductance subunits connected in parallel, the first resonant inductance subunit 11 and the second resonant inductance subunit 12, the first resonant inductance subunit 11 and the second resonant inductance subunit 12 are connected in parallel, so The first resonant inductance subunit 11 includes a first transmission gate S1 and a first inductance L1, the first transmission gate S1 and the first inductance L1 are connected in series, and the second resonant inductance subunit 12 includes a second transmission gate S2 and a second inductance L2 , the second transmission gate S2 and the second inductor L2 are connected in series.

[0025] Need to say yes, figure 1 I...

Embodiment 2

[0037] Figure 6 It shows a circuit diagram of another optional resonant clock circuit in the embodiment of the present invention, Figure 7 A schematic diagram showing the connection relationship between another optional transmission gate, a boost charge pump and a level conversion circuit according to an embodiment of the present invention, combined with Figure 6 as well as Figure 7 As shown, the resonant clock circuit includes a clock driver Buffer, a clock grid C mesh , decoupling capacitor C decap and a resonant inductance unit 3 , wherein the resonant inductance unit 3 includes a charge pump circuit, a transfer gate S1 and an inductor L1 , and the charge pump circuit includes: a boost charge pump 31 and a level conversion circuit 32 . The specific structure of transmission gate S1 can be Figure 7 In the transmission gate 33, the boost charge pump 31 is connected with the control terminal of the level conversion circuit 32 and the transmission gate 33.

[0038] Sp...

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PUM

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Abstract

The invention discloses a resonant clock circuit. The resonant clock circuit comprises a clock driver, a clock grid, a decoupling capacitor and a resonant inductor unit, wherein the resonant inductorunit comprises N resonant inductor subunits which are connected in parallel, any resonant inductor subunit is composed of a transmission gate and an inductor, the transmission gate is connected with the inductor in series, and N is a natural number larger than or equal to 2. The problem that the resonant frequency in a resonant clock circuit cannot be adjusted in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of integrated circuits, in particular to a resonant clock circuit. Background technique [0002] With the development of integrated circuit technology, the scale of the chip is getting larger and larger, and the clock grid is getting bigger and bigger, which brings problems of power consumption and clock skew. The emergence of the LC resonant clock has better solved the problems of power consumption, clock skew and jitter, and its resonant frequency can be passed express. According to the injection locking principle of the clock, the closer the resonant frequency is to the operating frequency, the lower the power consumption of the clock grid and the better the performance of the clock. Therefore, the frequency adjustment of the resonant clock is an important problem currently faced. Contents of the invention [0003] In view of this, an embodiment of the present invention provides a resonant clock cir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03B5/12
CPCH03B5/1225H03B5/1256
Inventor 李宗铭赵增华
Owner 苏州芯算力智能科技有限公司