Earphone interface circuit and electronic equipment

A headphone interface and circuit technology, applied in the field of electronic equipment, can solve the problems of headphone detection delay, sound quality, volume, etc.

Active Publication Date: 2012-10-17
DONGGUAN JINGSHENG ELECTRONICS TECH CO LTD
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  • Abstract
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Problems solved by technology

[0014] The object of the present invention is to provide a headphone interface detection circuit and electronic equipment, aiming to solve t

Method used

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  • Earphone interface circuit and electronic equipment
  • Earphone interface circuit and electronic equipment
  • Earphone interface circuit and electronic equipment

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Embodiment Construction

[0033]In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0034] The invention provides an earphone interface circuit. The earphone interruption detection end is connected to the right channel pin or the left audio channel pin of the interface. In the high-level headphone plug detection circuit.

[0035] refer to Figure 4 , a schematic diagram of an earphone interface circuit provided by an embodiment of the present invention. A kind of earphone interface circuit, is connected with control chip 100, and this earphone interface circuit includes plug-in such as figure 2 The interface JK1 of the earphone connector JT1 is shown. The right channe...

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Abstract

The invention relates to the field of electronic equipment, and provides an earphone interface circuit and electronic equipment. The earphone interruption detection end of the earphone interface circuit is connected to a right sound channel pin or a left sound channel pin of an interface; and the earphone interface circuit also comprises an earphone plug-in detection circuit which has the same level as the earphone interruption detection end, clamps the earphone interruption detection end, and is connected to the right sound channel pin or the left sound channel pin. Because the earphone plug-in detection circuit is arranged, earphone detection delay is reduced, and the quality and volume of sound are ensured simultaneously; and the earphone interface circuit is used in the electronic equipment, and a good using effect of the electronic equipment can be ensured.

Description

technical field [0001] The invention relates to the field of electronic equipment, in particular to an earphone interface circuit and electronic equipment. Background technique [0002] With the advancement of science and technology and the development of society, earphones have become one of the indispensable and important accessories on electronic devices such as mobile phones and computers. [0003] These electronic devices are generally provided with an interface circuit connected to the earphone, and the provided interface circuit has an earphone insertion detection circuit for detecting the insertion of the earphone. A schematic diagram of a basic earphone interface circuit provided in the prior art is as follows: figure 1 shown. The circuit includes plug-in as figure 2 The interface JK1 of the earphone connector JT1 is shown, the right channel pin 2 of the interface JK1 is connected to the right channel audio output terminal Earphone_R of the control chip through ...

Claims

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Application Information

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IPC IPC(8): H04R1/10H04R3/00
CPCH04R1/10H04R3/00H04R1/1041H04R3/007H04R5/04H04R29/00H04R2420/05H04R2420/09
Inventor 付从华
Owner DONGGUAN JINGSHENG ELECTRONICS TECH CO LTD
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