Mobile terminal and its printed circuit board pcb
A technology for printed circuit boards and mobile terminals, applied in the field of mobile terminals and printed circuit boards and PCBs, can solve problems such as electrostatic interference, long audio signal return path, interference signal interference, etc., to shorten the return path, improve signal quality, reduce Effects of Interfering Signals
Active Publication Date: 2019-06-07
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the disadvantage of the related technology is that the audio signal connection socket is directly connected to the main ground, which is easily affected by environmental factors such as static interference. At the same time, because the audio processing chip is far away from the audio connection socket, the return path of the audio signal is too long. , susceptible to interference from interfering signals
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents coming within the spirit and scope of the appended claims.
[0019] The mobile terminal and its printed circuit board (PCB) according to the embodiments of the present invention will be described below with reference to the accompanying drawings.
[0020] figure 1 is a schematic block diagram of a printed circuit board PCB of a mobile terminal according to an embodiment of the present invention. Such as figure 1 As shown, the PCB...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a mobile terminal and a PCB thereof. The PCB comprises a main ground, an audio signal connecting base and an audio processing chip, wherein the main ground is arranged in the PCB; the audio signal connecting base is connected with peripheral equipment; the audio signal connecting base is provided with a first signal end and a first grounding end; the audio processing chip is provided with a second signal end, a receiving end and a second grounding end; the second grounding end is connected with the main ground; the second signal end is connected with the first signal end; and the first grounding end is connected with the receiving end. After a signal of the first grounding end is filtered by the audio processing chip, the signal is switched into the main ground by the second grounding end, so that signal quality of a grounded signal can be improved, anti-interference capacity of an audio signal is improved, meanwhile, a reflux path of the audio signal can be shortened, an interference signal is reduced, and signal quality of the audio signal is improved.
Description
technical field [0001] The present invention relates to the technical field of PCB, in particular to a printed circuit board PCB of a mobile terminal and a mobile terminal. Background technique [0002] In related technologies, the ground wire of the audio signal connection seat in the PCB is directly connected to the main ground near the audio signal connection seat, and the reference ground wire of the audio processing chip is directly connected to the main ground near the audio processing chip. However, the disadvantage of the related technology is that the audio signal connection socket is directly connected to the main ground, which is easily affected by environmental factors such as static interference. At the same time, because the audio processing chip is far away from the audio connection socket, the return path of the audio signal is too long. , susceptible to interference from interfering signals. Contents of the invention [0003] The present invention aims to...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04R31/00
CPCH04R31/00
Inventor 范艳辉
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD