In the first quarter of 2024, Xiaomi has launched two new portable Bluetooth speaker products, including Xiaomi Bluetooth speaker and Xiaomi Bluetooth speaker Mini, both of which support IP67 dustproof and waterproof, and at the same time access to the Xiaomi surging intelligent connection system, which can be deeply linked with the Xiaomi surging OS mobile phone operating system, to achieve a sticky Bluetooth connection, two devices form stereo, and series playback between different models.
Among them, the Xiaomi Bluetooth speaker Mini is smaller and miniaturized, and the weight is only equivalent to one listening to Coke, providing better portability; In terms of functional configuration, it is equipped with 3 units and supports 360° omnidirectional sound; Equipped with innovative computational audio technology, it presents a natural and balanced listening experience; At the same time, it has a variety of built-in audio styles, and also supports manual adjustment of the frequency response curve to provide a personalized audio experience.
Xiaomi Bluetooth speakerMini is equipped with a dazzling atmosphere light,Built-in4Lighting effects can be switched at will,You can also freely adjust colors through the Mi Home APP; It supports Bluetooth 5.3 for a stable and fast connection, and has a built-in 2000mAh battery, which can support about 11 hours of battery life when the lights are off and about 8 hours when the lights are on. Let's take a look at the detailed teardown report of this product~
1. Xiaomi Xiaomi Bluetooth Speaker Mini unboxing
Xiaomi Bluetooth speaker Mini packaging box design is simple,The front display of the product name、Brand LOGO,Product appearance and Xiaomi HyperOS logo。
The back of the box introduces the functional features and parameter information of the product, as well as the logo that has been connected to Mijia. Product features: 360° omnidirectional sound output, ring atmosphere light strip, IP67 dustproof and waterproof, multi-unit combined playback, NFC music seamless relay, Mi Home intelligent linkage; Product Name: Portable Bluetooth Speaker, Product Model: ASM01A, Battery Capacity: 2000mAh (Typical), Protection Grade: IP67, Input Parameters: (USB Type-C) 5V-2A, Manufacturer: Beijing Xiaomi Electronic Products Co., Ltd.
On the side of the box is a product diagram with a portable rope attached.
The other side of the box shows the inside view of the three units.
The contents of the box include a speaker, a charging cable and an instruction manual, and this one is light coffee color.
音箱充电线，采用了USB-C to USB-C接口。
Xiaomi Bluetooth speakerMini appearance at a glance,12Prism design,Woven mesh wrapping,Stylish and simple appearance。 The front of the fuselage is designed with a brand logo and an interconnected logo.
A braided portable lanyard is set on the back of the fuselage.
On the skeleton of the fuselage, there are function buttons, and the embossed logo prompts the function.
The top of the fuselage is provided with a passive radiator, and the CD texture metal cover plate is decorated; Under the cover, a circular colorful atmosphere light is arranged.
Colorful atmosphere lighting effect display.
The bottom of the fuselage is pasted with shock-absorbing soft glue, and the product information is silk-screened, which is consistent with the external packaging box.
The charging port is set on the base of the speaker, which is covered by a dust plug.
取掉防尘塞，Type-C充电接口特写。
Measured by I love audio network,XiaomiXiaomi Bluetooth speakerMiniWeight is about327.2g,Light and portable。
I love audio network uses ChargerLAB POWER-Z KM001 portable power tester to charge Xiaomi Bluetooth speaker Mini, and the input power is about 5.84W.
Second, Xiaomi Xiaomi Bluetooth speaker Mini disassembly
Remove the bottom cushion with no set screws underneath.
Dismantle the snap-on fixed speaker housing.
Close-up of the inner structure of the enclosure, with honeycomb-shaped speaker sound holes on both sides.
The structure on one side of the internal cavity is at a glance, and a full-range speaker unit is fixed.
The other side is provided with a symmetrical full-range speaker.
Remove the keycap structure of the function buttons on the back of the fuselage, and a layer of rubber pads is also provided on the fuselage.
The keycap structure at a glance with the upper layer of the plastic bracket covered with rubber pads.
Close-up of the other side of the keycap structure, with the key position hollowed out.
Close-up of lanyard hole structure, secured by screws.
Remove the lanyard hole structure and rubber pads.
A list of the inner structure of the rubber pad, which corresponds to the function buttons on the motherboard.
Remove the top cover of the speaker.
Close-up of the inside of the cover plate, a passive radiator, with a dustproof and waterproof rubber ring on the edge.
The internal structure of the cavity is at a glance, and the top is fixed by screws to fix the colorful atmosphere light plate.
Take out the small plate and see the internal structure of the cavity at a glance.
There are 8 LED lamp beads at a glance on one side of the atmosphere light board, which are used to provide light source for the ring colorful atmosphere light.
Close-up of the ZIF connector connecting the cable from OCN, model: OK-F501-08325.
A list of circuits on the other side of the ambient light board.
The Shanghai Aiwei electronic AW21036 RGB LED driver of silk screen printing "A1JD" is a 36-channel direct-drive breathing lamp driver, which is controlled through a 12C interface and has 256 levels of current regulation.
Shanghai Aiwei Electronic AW21036 detailed information map. According to I love audio network, there are currently Meta, Xiaomi, OPPO, vivo, Honor, Redmi, iQOO, Lenovo, OnePlus, Meizu, LG, JBL, Nothing, HHOGene, Mengma, Oladance, Keep and many other well-known brands at home and abroad have adopted Aiwei Electronics' chip products.
Remove the bottom cover of the speaker.
A power input board is provided on the inside of the cover, and the cable is wrapped by a sponge to prevent noise from resonance.
Remove the screws and remove the power input board.
Remove the power input cable from the small board.
A list of circuits on the side of the power input board.
A list of circuits on the other side of the power input board.
Close-up of the Type-C charging socket, the port is provided with a dustproof and waterproof rubber ring.
Silk screen 24A TVS tube for input overvoltage protection.
Close-up of the BTB connector receptacle connecting the cable from OCN, model: OK-128GF010/2-35.
A list of wiring circuits.
Close-up of the male socket of the BTB connector connected to the power input board, from Archie Technology (OCN), model: OK-128GM010/2-35.
Close-up of the BTB connector male connector connected to the motherboard.
Remove the screws, remove the full-range horn, and set a transparent slow rubber pad cushion underneath.
Close-up of the front of the full-range speaker, the wires are connected to the motherboard through a socket, and the cables are wrapped in foam.
Close-up of the back of the full-range speaker.
Full-range horn vs. one-dollar coin size.
According to the actual measurement of the I love audio network, the length of the full-range speaker is about 47.55mm.
The width is about 45.39mm.
Remove the screws and remove the battery cover.
Remove the battery cell inside the chamber.
The speaker has a built-in cylindrical lithium battery, and the wires are connected to the motherboard through a socket.
List of information on battery label, rechargeable lithium-ion battery pack, model: 10588A, nominal voltage: 3.7V, rated capacity: 1900mAh, rated energy: 7.03Wh, typical capacity: 2000mAh, charging limit voltage: 4.2V, manufacturer: Brocade Energy Systems (Shenzhen) Co., Ltd., made in China.
Tear off the blue plastic protection on the outside of the battery.
A list of silk-screen information on the cell.
A list of battery protection board circuits is equipped with a lithium battery protection IC, MOS tube, and a thermistor that detects the temperature of the battery.
Close-up of the fuse of the silkscreen U.
Close-up of the silk-screened 8L lithium battery protection IC, responsible for the protection of the battery from overcharge, overdischarge, and overcurrent.
Silk screen 2003 MOS tube.
Remove the motherboard unit inside the cavity.
Close-up of the NFC antenna fixed inside the cavity.
A list of circuits on one side of the speaker motherboard.
A glance at the circuit on the other side of the speaker motherboard.
Close-up of the function buttons on the motherboard, all five of which are of the same specification.
Close-up of the wire socket connected to the full-range speaker unit.
Silk screen printing "SGMGKB" of SGMICRO Shengbang micro SGM41513D lithium battery charger. is a battery charger and system power path management device with integrated converter and power switch for single-cell lithium-ion or lithium-polymer batteries. SGM41513 highly integrated 3A devices are capable of fast charging and support a wide input voltage range for smartphones, desktops, and portable systems. I²C programming makes it a very flexible solution for power supply and charger design.
SGMICRO圣邦微SGM41513D详细资料图。
Silk screen printed RZR's IC.
Close-up of power inductor.
Hefei Tangcheng (torch-chip) XA9822E audio power amplifier for speaker drivers.
Close-up of the peripheral filter inductor of the audio power amplifier, according to my love audio network, it is a SWPA series winding power inductor from Shunluo Electronics, and the coil is coated with magnetic resin, which can reduce the peak sound; Metallization on the ferrite core provides superior impact resistance and damage-free durability; Closed magnetic circuit design reduces leakage flux and electromagnetic interference (EMI); At the same time, the small size occupies less PBC space and saves power consumption.
Sunlord Shunluo Electronics SWPA series detailed data map. According to the dismantling of I love audio network, including HUAWEI, OPPO, Yueme, DJI, iFLYTEK, Xiaomi, Redmi, Lenovo, iKF, Marshall, JLab and other brands' products have used Shunluo Electronics' inductors.
BES Hengxuan BES2600Z Bluetooth audio SoC that supports Bluetooth 5.3 for wireless connectivity and audio data processing.
Provides a close-up of the crystal oscillator of the clock for the Bluetooth audio SoC.
Close-up of antenna test switch, there is a Sunlord Shunluo electronic SDCL0603Q series laminated ceramic inductor on the right circuit, the product achieves high Q value and high self-resonant frequency (SRF) through well-designed coils and electrodes, and is made by multilayer dry process, which can provide high-precision and high-consistency products to meet the strict requirements of precision electronic components.
Sunlord顺络电子SDCL0603Q-T02B03系列详细资料图。
FM Fudan Micro FM11NT082C NFC chip is the second generation of NFC dual-interface tag and channel chip in accordance with ISO/IEC14443 Type A protocol developed by Fudan Microelectronics. In the dual-interface label mode, users can temporarily switch to channel mode by changing the registers for real-time data transmission, and after the transmission is completed, the chip is re-powered on, and then return to the dual-interface label mode, which can be used for applications such as firmware update of external master MCU or fast transmission of large data volumes.
FM复旦微FM11NT082C详细资料图。
Close-up of the lead socket connected to the NFC antenna.
Close-up of the wire socket connected to the battery.
Close-up of the BTB connector receptacle connected to the power input board from Archie Technology (OCN), model: OK-128GF010/2-35.
Close-up of the wire socket connected to the second full-range speaker.
Close-up of 2R2 alloy filter inductor.
Close-up of three filter capacitors.
Close-up of the ZIF connector connected to the small board of the Fantasy Ambient Light from Arcchi Technology (OCN), model: OK-F501-08325.
Xiaomi Xiaomi Bluetooth Speaker Mini disassembles the family photo.
3. I love the audio network summary
Xiaomi Xiaomi Bluetooth Speaker Mini In terms of appearance design, compared with the previous Xiaomi portable Bluetooth speaker, it is more simple and fashionable, and at the same time, it is light in sizeMini, easy to carry. The fuselage is made of woven mesh, which is soft and comfortable to the touch, and is more wear-resistant and durable for use in outdoor environments; The CD cover plate on the top of the fuselage is decorated to enhance the sense of detail; There is also a ring illusion atmosphere light, which flashes with the music and supports free color grading to improve playability.
The main internal equipment includes symmetrical full-range speaker + passive radiator, 1900mAh cylindrical lithium battery, as well as the motherboard, power input board and magic atmosphere light board, all of which are connected through connectors. The small board of the magic atmosphere light is equipped with 8 LED lamp beads, and the RGB LED driver AW21036 Aiwei Electronics is used.
On the motherboard, SGMICRO SGM41513D lithium battery charger, BES Hengxuan BES2600Z Bluetooth audio SoC, FM Fudan micro FM11NT082C NFC chip, as well as Sunlord Shunluo Electronics SWPA series winding power inductor, SDCL0603Q series laminated ceramic inductor and other components.