Camera module signal wiring mode

Abstract

The invention discloses a camera module signal wiring mode. The camera module signal wiring mode is implemented in a camera module signal wire wring structure. The signal wire wiring structure comprises a substrate body, optical sensors and a plurality of components, wherein the substrate body is provided with a connection wire PAD, the optical sensors are located on the obverse of the substrate body, and the components are distributed on the obverse of the substrate body and located on the outer sides of the optical sensors. The signal wiring mode comprises the following steps that (1) a signal performs bypass parallel wiring; (2) smoothing is performed on the signal. Under the condition of limited design space, through the wiring mode of data signal wires in the optical sensors, the wiring lengths of a differential signal pair are matched, the transmission rates are equal, and better interference resistance is achieved. Because of the higher rates, the simpler signal wire connection and better differential impedance control over the signal by the wires, a camera module has the advantages of being stable in working, high in interference resistance and the like.

Description

technical field [0001] The invention relates to the field of camera module design, in particular to a signal wiring method of the camera module. Background technique [0002] With the continuous improvement and updating of new bus protocols, the requirements for CCM design modules are naturally increasing. Various signals are not only pure connection conduction, but also for MIPI signals. [0003] High-end pixel sensors basically have MIPI signal pairs of more than 2Lane. At present, with the emergence of high-pixel optical sensors and the maturity of technology (such as 8M, 13M, etc.), the use of high-end pixel sensors is becoming more and more common. It is limited and cannot meet the ideal wiring requirements. For example, in the past, the signal line pairs were always kept parallel to each other. In the end, the difference in the length of the lines between the signal pairs was large, which would cause the camera module to have signal distortion and not work. and job i...

AI Technical Summary

Problems solved by technology

At present, with the emergence of high-pixel optical sensors and mature technology (such as 8M, 13M, etc.), the use of high-end pixel sensors is becoming more and more common. Limited, it is impossible to meet the ideal wiring requirements. For example, in the past, the signal line pairs are always kept in parallel with each other, and the final signal line length difference between the signal pairs is large, which will cause signal distortion in the camera module and fail to work. and job instability

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