Headphone jack, headphone jack, headphone jack, headphone jack, headphone jack issued a unified standard!

Headphone jack, headphone jack, headphone jack, headphone jack, headphone jack issued a unified standard!

The standard specifies the technical requirements and test methods for the wired earphone jack interface of the mobile phone, including the physical structure of the interface, connection definition, logo, mechanical performance, security protection performance, electrical performance and environmental adaptability, etc., which is applicable to the wired earphone interface of the mobile phone and The connected wired earphones and interface conversion devices, etc., other audio playback devices can also refer to the implementation; do not apply to the digital transmission mode of the mobile phone wired headset socket interface.


Like other portable electronics, it requires a headphone jack with low operating voltage, low power, and small package size. Headphone amplifiers also have their own technical parameters, requiring total harmonic distortion plus noise (THD+N), high power supply rejection ratio (PSSR), high signal-to-noise ratio (SNR), and high efficiency. Different amplifiers have different additional features, such as built-in digital volume control, built-in DAC, and more.
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