The recent teardown of the Anker Soundcore Space A40 earbuds has provided an in-depth look at the technology that powers these compact devices. Conducted by the YouTube channel [MCH170], the analysis showcases the inner workings of both the charging case and one of the earbuds, revealing intricate components that contribute to their performance.
Inside the Charging Case
The teardown begins with the charging case, where the back cover was removed to access its internal components. The first notable element discovered was the charging coil, accompanied by several screws securing the printed circuit board (PCB). Once these screws were removed, the coil could be lifted away, exposing the main PCB and the magnets designed to hold the earbuds in position. The microcontroller identified in this setup is the SS881Q from Sinhmicro. The reverse side of the main circuit board features a collection of surface-mounted devices (SMDs), including status LEDs.
The charging case houses a battery rated at 3.72V with a capacity of 800mAh, equivalent to 2.967Wh. This battery specification plays a crucial role in the earbuds’ overall performance and longevity.
Exploring the Earbuds
Following the examination of the charging case, attention turned to one of the earbuds, which had been non-functional prior to disassembly. The earbuds are secured together using friction clips, allowing for a straightforward opening. Inside, the top of the PCB reveals two ribbon cables; the upper cable is connected to the battery, while the lower one serves the speaker and charging connections.
Three pogo pins interface with the touch sensor embedded in the outer casing. The back side of the PCB is densely populated with SMD components, showcasing the complexity of the design. The main integrated circuit identified is the WQ7033AX, a Bluetooth audio system on chip (SoC) from WUQI Microelectronics.
Beneath the PCB lies the battery, which operates at a nominal voltage of 3.85V and has a capacity of 53mAh, translating to 0.204Wh. This compact battery is essential for the earbuds’ wireless functionality, contributing to their portability and ease of use.
The teardown not only highlights the advanced technology behind the Anker Soundcore Space A40 earbuds but also demonstrates the intricate engineering that allows such small devices to deliver high-quality audio experiences. For audio enthusiasts and tech aficionados, this detailed look into the earbuds’ components provides valuable insights into modern wireless earbud design.
For those interested in further exploring audio technology, resources like “Cheap DIY High Impedance Earphones” or guides on converting older models to wireless options may offer additional engaging projects.
