EDIFIER W830NB Over-Ear Noise Cancelling Headphones is an upgrade of its million-selling W820NB, which has been upgraded in many aspects such as appearance, sound quality, noise cancellation, and battery life. The folding design has been added, supporting LHDC5.0 high-definition codec, and it also brings the spatial sound function of the theatrical version, with a maximum noise reduction depth of -45dB and a battery life of 96 hours. Compared to the classic model, the upgrade is very comprehensive.
Recently, I love audio network disassembled EDIFIER W830NB over-ear noise cancelling headphones, and found that it uses a LP4069T lithium battery charging IC from LPS microsource semiconductor. This is a complete constant-current/constant-voltage linear charger that provides a guarantee for the fast charging of W830NB headphones.
In terms of sound quality and noise reduction, EdifierW830NB supports LHDC5.0 high-definition audio codec, supports up to 192kHz/24bit lossless sound quality transmission, and has obtained the certification of Hi-Res double small gold standard. The latest Bluetooth 5.4 also makes the W830NB connection more stable and has lower latency. Noise reduction is a highlight of the 830NB, with a maximum noise reduction depth of -45dB, an increase of 18%. At the same time, the noise reduction bandwidth has also been expanded, which can reduce more and wider frequency noise.
In terms of battery life and charging, the Edifier W830NB has an ultra-long use time of 96 hours. Even with noise cancellation turned on, the use time reached 55 hours. Thanks to the support of the lithium-ion battery charging IC and the high-capacity fast-charging battery, the W830NB headphones can bring about 11 hours of battery life after 15 minutes of charging.
After a detailed disassembly, it was found that the motherboard of the Edifier W830NB headset integrates Bluetooth audio SoC, LED indicator, overvoltage and overcurrent protection IC, lithium battery charging IC, power inductor, Bluetooth antenna and other components, as well as a 670mAh lithium-ion battery, call microphone and noise-canceling microphone. Among them, the lithium battery charging IC is a LP4069T from LPS Microsource Semiconductor, a linear charger with a complete constant current/constant voltage linear.
LPS Microsource Semiconductor LP4069T lithium battery charging IC, is a complete constant-current/constant-voltage linear charger with a maximum output current of 800mA, a maximum withstand voltage of 28V, with NTC temperature regulation, built-in MOSFET, no external sense resistor, and no diode; Thermal feedback regulates the charge current to limit the chip temperature during high-power operation or high ambient temperatures, and the charge current can be programmed externally with a single resistor. The TDFN-8 package requires a small number of external components, making it ideal for portable applications.
LPS微源半导体LP4069T详细资料图。 据我爱音频网拆解了解到，目前已有小米、荣耀、Redmi、realme、MEIZU、红魔、雷蛇、小天才、FIIL、1MORE、JBL、Bowers & Wilkins、酷睿视、Barbetsound、JLab、SUUNTO、Monster、七彩虹、Nothing、斯莫格、PHILIPS、RODE、重力星球、Haylou、如布、ELEVOC、HHOGene，黑鲨、SoundPeats、花再、OPPO、华为、联想、索尼、诺基亚、摩托罗拉、漫步者、声阔、万魔、QCY、绿联、雷蛇等众多品牌旗下音频产品采用了微源的方案。
I love the audio network summary
The Edifier W830NB headphones have been upgraded in terms of sound quality, noise cancellation and battery life, bringing Gold Label certified sound quality, more immersive deep noise cancellation and 96 hours of ultra-long battery life. After disassembling the Edifier 830NB, it was found that the long battery life is not only a large battery, but also the lithium battery IC LP4069T LPS microsource semiconductor has also played a huge role in providing support for the long battery life and fast charging of the earphones.
Microsource Semiconductor focuses on the R&D and sales of high-performance analog chip products, and is an integrated circuit design company. Since its establishment, the company has focused on the field of power management chips, and has provided a full range of power management chip products with high specifications, high flexibility and high reliability for major brands.
Microsource Semiconductor has launched more than 1,000 product models, covering battery management, PMU, power conversion, interface protection, P-Gamma, Level Shifter, op amp and protocol chips, and is widely used in many downstream market fields such as smart home, automotive electronics, smart portable, medical health, screen display, wireless communication, etc.