Soundcore is an audio brand under Anker. With the rapid development of the TWS headset market, Soundcore has also joined this market and continued to launch innovative products, becoming the first Chinese headphone brand to break into the TOP10 global TWS headset sales. After returning to the Chinese market in 2020, the products are also loved by many consumers.
What will be dismantled this time is the Soundcore R100, a TWS headset product launched by Soundcore and 890 Xinshangxue. The overall appearance uses a very clean white color, and the touch is smooth and round. The configuration uses a 10mm wool paper composite diaphragm dynamic driver, bluetooth 5.0, supports AI call noise reduction, fast charging, IPX5 waterproof, 6.5 hours of single battery life and 25 hours of overall battery life.
52audio’s disassembled sound wide true wireless earphones include: Soundcore Liberty Air 2 Pro, Soundcore Life Dot 2, Soundcore Liberty 2 Pro, Soundcore Liberty Air 2, Anker Soundcore LIcoreY SpiritSound waterproof bluetooth headset. Let’s take a look at the internal structure of this product.
|2. Soundcore R100 Charging case teardown
After unpacking, we have a detailed understanding of the appearance design of this product, as well as the general internal layout through the location of some interfaces. Let’s enter the dismantling link and take a look at the materials of this product.
Pry open the charging case and take out the charging cockpit.
In the cockpit side structure, the main board is located at the bottom of the cockpit, the battery is located in the middle position, and the upper and lower sides are pasted with double-sided tape for good protection.
charging case The other side of the cockpit.
The main board is fixed to the bottom of the charging cockpit by screws, the Hall element and LED indicator cable are connected to the main board through the ZIF connector, and the battery unit wires are welded to the main board.
Remove the main circuit in the charging case, and there are 3 square magnets at the bottom of the cockpit to absorb the earphones and the charging case cover.
The FPC cable circuit has a Hall element at the end and two LED indicators of different colors in the middle.
The Hall element of the silk screen Hy1HB is used to perceive the magnetic field changes when the charging case lid is opened/closed. The Hall element will detect it, and then notify the charging case that the MCU and headset are paired or disconnected from the connected device.
Circuit on the motherboard side.
A list of the circuits on the other side of the motherboard, there are test points on the back, charging thimble, and no components on the back of the motherboard.
The charging case uses the TPS SY8815 bluetooth headset charging bin solution. Internally integrated charging module and discharging module. The charging current can be adjusted externally, and the discharging module integrates two output current limit switches, providing independent load presence detection and load insertion detection, and supports output current detection.
SY8815 supports discharge enable control, and MCU can directly control the discharge function of the chip flexibly through EN. SY8815 integrates a single-wire status code output, which is convenient for the chip to report the chip status to the MCU. SY8815 is very suitable for the design of the bluetooth headset charging compartment, which greatly simplifies the peripheral circuits and components, and provides a simple and easy-to-use solution for the application of the bluetooth headset charging compartment.
According to 52audio, the TPS power management chip has been adopted by many well-known brands such as Soundcore, OPPO, Xiaomi, Baidu, 1MORE, 233621, and OnePlus.
A non-standard MCU single-chip microcomputer, used for charging case Hall detection and indicator light control.
A close-up of the Type-C charging interface female seat, vertical through-hole welding.
The function buttons on the motherboard are used for bluetooth pairing connection and resetting functions.
Pogo pin connector for charging the earphones.
Rechargeable lithium ion soft pack battery label information, product model: 121828, rated voltage: 3.63Vdc, rated capacity: 500mAh/1.82Wh, charging limit voltage: 4.2V, date: 20210510, made in China, manufacturer: Xinyu Ganfeng Electronics Limited company.
52audio learned that Xinyu Ganfeng batteries have been widely adopted by a variety of true wireless headsets from brands such as JBL, OPPO, realme, OnePlus, UGREEN, and MOMAX.
A warning reminder is posted on the other side.
|2. Soundcore R100 Charging case teardown
Pry the earphones along the parting line.
A soft-pack button battery is used in the earphone, which is fixed on the back of the speaker with double-sided tape.
The soft-pack button battery model GF1254, voltage 3.7V, capacity 0.222Wh, comes from Xinyu Ganfeng as the charging case battery.
An isolation layer is arranged in the rear cavity to separate the battery and the main board unit.
The front of the speaker unit is protected by a metal cover, and the wool fiber diaphragm can be seen inside.
On the back of the speaker unit, the side tuning hole is protected by a dust-proof net.
After actual measurement, the size of the dynamic driver is about 10mm, which is consistent with the official publicity.
In the internal structure of the front cavity, a dust-proof net is arranged inside the tuning hole.
The arc-shaped magnet that fits the cavity is fixed in the card slot and is used for adsorption to the charging cockpit.
Pry open the headphone handle cover.
The inner structure of the earphone handle cover.
The microphone has a sealed sound pickup structure to improve sound pickup performance.
The bluetooth antenna is connected to the metal thimble on the motherboard through a metal sheet.
The internal structure of the earphone handle and the main board fit the shape of the cavity.
Circuit on the motherboard side.
Circuit on the other side of the motherboard.
BES WT230-U bluetooth Low Energy Audio SoC, supports dual-mode bluetooth 5.0, integrates high-performance Cortex-M4F MCU and serial flash memory to support various functions of the headset. As well as radio frequency transceivers, high-performance audio codecs and non-output capacitor headphone drivers, the cost of external components and BOM is minimized.
According to 52audio, BES solutions have been widely adopted in true wireless headsets from brands such as Samsung, Xiaomi, OPPO, JBL, 1MORE, Honor, Baidu, OnePlus, Transsion, Realme, and Anker.
BES WT230-U detailed information.
Laser carving 1073 1271 MEMS microphone is used for voice call pickup.
Silk screen VPA IC.
The built-in battery protection chip of the earphone adopts ICM CM1124-EAC, silk screen EA, which is a single-cell lithium battery protection chip with integrated MOS. It has the advantage of high voltage detection accuracy, supports 0V battery charging, and adopts 1*1mm, DFN-4 package, which saves board area.
According to 52audio, there are already OnePlus Buds Z, OnePlus Buds true wireless earphones, OPPO Enco W31 true wireless earphones and Skullcandy Sesh true wireless bluetooth earphones and other products that have adopted a large number of ICM lithium battery protection ICs.
The jog button on the motherboard.
The crystal oscillator on the motherboard provides a clock for the bluetooth chip.
A pogo pin connector for connecting a bluetooth antenna.
The copper pillar used to charge the earphones, in the middle is the microphone opening of the motherboard.
All components of Soundcore R100 true wireless headphones.
The Soundcore R100 true wireless earphones adopt a pure white color scheme in the appearance design, and the piano paint process is processed, and the whole machine feels smooth and round. The fuselage material is relatively heavy, and with a tightly-fitted structural design, it has a strong sense of quality. The concave design at the opening is also very convenient for users to open with one hand.
In terms of internal structure configuration, the charging case is composed of a main board, a battery unit and an FPC cable. The Type-C charging interface is used to connect to the power source, and the TPS SY8815 bluetooth headset charging bin solution provides charging and discharging management functions; a non-standard MCU is responsible for the overall control of the charging case. Built-in rechargeable lithium-ion battery 500mAh, from Xinyu Ganfeng.
The Soundcore R100 headset part uses 10mm dynamic speakers, 0.222Wh Xinyu Ganfeng soft-pack button batteries, which are connected to the motherboard through wires, and the ICM CM1124-EAC lithium battery protection chip is responsible for overcharge, overdischarge, overcurrent and other protection functions; The main control chip is BES WT230-U low-power bluetooth audio SoC, supports dual-mode bluetooth 5.0, integrates high-performance Cortex-M4F MCU and serial flash memory to support various functions of the headset.
Related Products of Anker: