Headphone jacks are widely used in today's industry fields such as computer equipment, mobile phone equipment, medical equipment, audio equipment, and electronic equipment. They need to be used for headphone jacks. In addition, the specifications of headphone jacks are also differentiated. For example, there are 2.5mm headphone jacks and 3.5mm headphone jacks. So, let's learn about the comprehensive knowledge analysis of headphone jack usage!

Analysis of the anti-interference function of the headphone socket

Currently, common headphone sockets usually have the function of automatically preventing data line interference between each other, so there is no need to worry about the interference of data transmission during use. However, when the transmissive infrared photoelectric switch of the headphone socket is installed side by side, please avoid interference between adjacent groups during installation. Moreover, an effective way to prevent such interference to the headphone plug is to cross-set it, and pull the distance between groups when the data set exceeds the socket, and change it to different frequencies and other states.

Analysis of problems such as data line inspection of headphone socket

In addition, the farther the detection distance of the data line inside the headset is, the larger the interval is. The specific interval can be determined according to the adjustment situation. Of course, different working frequencies can also be used to execute. However, in general, there is also the influence of the mirror angle. When the object to be detected of the headphone plug is shiny or has a smooth metal surface, it generally shows a mirror-like effect, and the reflectivity is also high. Therefore, it is generally recommended to prevent false operation and eliminate the influence of background objects by making the angle between the projector and the detection object of the headphone plug so that its optical axis is not perpendicular to the object to be detected.

Analysis of the working mode of the headphone jack

The advantage of the working mode of the headphone jack is that the working modes can be run simultaneously. This means that the audio file can be encoded in real time from the data file, but there are two precautions. The precaution on the other hand is that if the transmission of the data file is slightly interrupted, or the transmission timing is slightly wrong, sound interruption and sound quality degradation will occur. This is one of the main reasons for the poor sound quality and stability of the current USB sound processing chip relative to the traditional protocol of the headphone jack.

The two headphone jacks are hardly suitable for high-definition audio formats, including 24/192, and even 32/192 audio files in the future. The operating mode can be synchronized at the same time, and if the OS device is busy, the time will be more uncertain. Therefore, for the working mode that affects this headphone jack, we must both understand and pay attention to it.

Analysis of precautions for welding headphone jacks In contrast, when welding the headphone jack, be sure to pay attention to adding a transistor switch circuit behind the headphone jack on the board so that the power can be turned on with a small key switch. The purpose is to avoid sparks when the power is turned on, but at the same time, use high-current triodes or MOS tubes to operate the switching power supply, and also pay attention to the working transmission of the headphone jack. However, another precaution for the headphone jack is to choose good quality welding. When welding, scrape off the oxide around the headphone jack to be welded, apply a paste that helps welding, and weld quickly with a 100W soldering iron to dissolve the colloid and cool it.