The development of TWS headphones has been derived to the category of sports, concentration of sound quality, sleep, and other categories. The requirements of users can often give birth to the birth of a new category of a product. The portability of TWS headphones has been sought after by consumers since its birth, but when the user uses TWS headphones in the game, a problem found that the delay of the headset has led to poor game experience.
Lenovo paid attention to the problem of delaying users using TWS headphones games, and launched Lenovo LP6 headphones that specifically optimized the user’s game experience. Lenovo LP6 headset built -in “AAC HD Decoding Video Mode/AGC Precision Control Gaming Mode”. In the internal configuration, the headset uses a 13mm biochemical membrane with a three -frequency equilibrium analysis to support automatic balance adjustment. In terms of battery life, Lenovo LP6 headphones with the headset charging box can achieve a battery life of up to 30 hours. In terms of charging, the headset supports the fast charging for 10 minutes.
I recently got Lenovo LP6 headphones and disassembled it to study how it achieves high -cost low -delay game modes and fast charge. Interested friends, let’s take a look ~
Earlier, I have disassembled Lenovo HT38 real wireless headphones, Lenovo ThinkPlus Liveods LP40, Lenovo Bluetooth headset QT83, Lenovo Zhen Wireless Bluetooth headset TC03, Lenovo ThinkPlus Trackpods, Lenovo TWS Real Wireless Headphones S1, Motorola Verve Ones+, Motororads Verve Budes+ 200. Motorola Verve Buds 500, Motorola Verve Buds 800 and other real wireless headphones, let’s take a look at the disassembly report of this product ~
1. Lenovo LP6 earphones open the box
Lenovo LP6 Headphones’s outer packaging design is cool. The upper left corner is the product name of “Lenovo Live Pods LP6 Real Wireless Bluetooth Headphones”. Essence
Lenovo LP6 headset packaging uses the design of the heaven and earth cover, and the bottom shell uses the red color of Lenovo LOGO as the black contrast between the background color and the packaging cover, bringing a visual impact.
List of information on the back of Lenovo LP6 packaging box. Product features: one -click touch, 13mm unit, lasting battery life, high -definition calls, comfortable wear, game headphones.
Product information: model LP6; Bluetooth version V5.0 (upgrade support 5.3); effective distance ≥10m; speaker diameter of 13mm; frequency response 20Hz-20kHz; rated input 5V⎓300mA; headset battery capacity 35mAh; charging warehouse battery capacity 300mAh.
Open Lenovo LP6 headset product packaging box and take out the accessories.
The usb a to C charging cable.
S/L two pairs of earplugs of different sizes, including M size earplugs on the headset.
The overall material of Lenovo LP6 headset charging box is scrub black, and the appearance uses the bulk box design of the lid. The two V -type arrow indicators are very cool in the middle of the charging box. The horn is LONOVO logo.
The Type-C charging interface of Lenovo LP6 headset charging box is designed on the back of the headset charging box.
Lenovo LP6 headset charging box Type-C charging interface close-up.
List of Silk Printing information at the bottom of Lenovo LP6 headset charging box. Product name: real wireless Bluetooth headset; product model: LP6; rated input: 5V⎓300mA; battery capacity 300mAh.
Open Lenovo LP6 headset charging box cover.
Take out the headset.
The overall appearance of Lenovo LP6 headset.
List Lenovo LP6 Headphones Outside the outside of the headset, Lenovo LP6 headset also uses an angular handle -type ear -in -ear design. The appearance material and the charging box are made of matte black. There is a silver -gray bottom at the bottom of the headset handle.
On the inside of Lenovo LP6 headset, the headset handle is equipped with the left and right signs of L/R to distinguish the left and right ear.
At a glance of the headset head, there are fine metal dust nets to prevent foreign bodies from entering the headset sound cavity.
A close -up of tuning holes in the inside of the headset head near the main sound hole to ensure the circulation of air internal air in the sound cavity and improve acoustic performance.
There is also a tuning hole on the outside of the headset head to ensure the circulation of air internal air in the sound and improve acoustic performance.
The Lenovo LOGO is printed on the headset.
The L/R logo is printed at the bottom of the headset handle to identify the left and right ear.
The metal contacts charging the headset are designed at the bottom of the headset handle.
After the actual measurement of my love audio network, the total weight of Lenovo LP6 headphones and charging boxes is about 53.1g.
After the actual measurement of my love audio network, the weight of Lenovo LP6 headphones is about 4.1g.
When the charging box is connected to the charging cable, the indicator is very cool when the light is on, and then enter the charging test of the charging box.
My Audio.com uses CHARGERLAB POWER-Z KT002 portable power tester to conduct a wired charging test on the LP6 headset. The input power of the product is about 0.14W, the charging voltage is about 5.04V, and the charging current is about 0.03A.
Second, Lenovo LP6 headset disassemble
After reading the cool appearance of Lenovo LP6 headphones, let’s enter the disassembly part of the product. First, the charging box is disassembled first.
Charging box disassembly
First pry the headset cockpit along the module line, separate the charging cockpit and charging box shell.
The front of the charging cockpit is equipped with a sensor charging box opening and closing Hall component.
There is a charging box battery on the back of the charging cockpit.
The charging cockpit has a heavy iron on both sides.
The charging box motherboard is located at the bottom of the charging cockpit.
The charging box motherboard is fixed on the charging cockpit via the screw.
Remove the screw and separate the charging box motherboard from the charging cockpit.
At a list of the structure of the charging cockpit remove the charging box motherboard, 3 magnets are set to adsorb the headset and charging box cover.
List of the main board circuit of the charging box.
List of the front circuit of the charging box motherboard.
List of the circuit on the back of the charging box motherboard.
At a list of charging box batteries, the model SQX701435, the rated voltage 3.7V, and the rated capacity of 1.11Wh.
You can see the battery’s insulation tape. You can see the battery equipped with a circuit protective board. The circuit protective board has IC and MOS tube of the protective circuit.
At a list of Hall components of Silk Print 1kan, the magnetic field change (Hall effect) when opening/closing of the charging box lid (Hall effect) is notified to control the charging box to control the chip, and then the headset is connected to/disconnect with the pairing device. Essence
A close -up of the ZIF connector connected to the Hall component FPC line.
Close -up of the POGO PIN connector charged for the headset.
Type-C mother is close-up.
Injoinic British core combined MCU’s TWS headphone charging warehouse management SOC model IP5518, which integrates multi -functional power management SOC with 5V boost converter, lithium battery charging management, battery power indicator, provides a complete power solution for the TWS Bluetooth headset charging warehouse to solve the solution Program.
IP5518’s high integratedness and rich functions make it only require very few peripheral devices when applying, and effectively reduce the size of the overall solution and reduce the cost of BOM. The IP5518 chip has a built-in 5V output, synchronized rectification DC-DC, with a built-in power tube, providing a maximum 300mA output current, and the boosting efficiency is as high as 93%. The DC-DC converter switch frequency is 1.5MHz, which can support low-cost inductors and capacitors.
The linear charging of IP5518 provides a maximum 500mA charging current, which can flexibly configure the maximum charging current. The built -in IC temperature and input voltage intelligent adjustment charging current function; IP5518 can achieve TWS independent entrance to the ear to detect the earphones and automatically enter the headset charging mode after the earphones enter the position. After the headset is full, the dormant state is automatically entered. ; Flexible custom headsets are full of full -length current, and the accuracy is as high as 1mA.
据我爱音频网拆解了解到,目前已有漫步者、中兴、JLab、海贝、倍思、网易云音乐、Pioneer先锋、PIHEN品恒、公牛、傲基、MPOW、BoAt、诺基亚、联想、 The TWS headset charging box of a large number of brands such as Xia Xin and Himalayan uses the British core power management solution.
Detailed information diagram of injoinic British core IP5518.
2R2 boost inductance, with the power management chip to boost to the headset charging.
After disassembling the charging box, let’s disassemble the headset to see what secrets are ~
First remove the headphones of the headset along the co -mold line.
There is a dynamic ring unit in the headset’s shell.
Soft bag batteries and magnets are designed in the cavity of the cavity after the headset head.
Remove the battery in the cavity of the headset, the headset, and the soft bag battery connected to the headset motherboard on the headset through the headset through the headphones.
List of the tuning holes in the back cavity of the headset.
At a list of headset batteries, the model SQX451012, the rated voltage of 3.7V, and the rated capacity of 35mAh/0.1296Wh.
Remove the car ring unit from the headset head case, and a large amount of glue fixed dynamic ring unit is used inside the headset head.
At a view on the front of the dynamic ring unit, there is a metal protective case protection.
At a glance on the back of the dynamic ring unit, there are tuning holes to improve acoustic performance.
Comparison of the dynamic ring unit and 1 yuan coin.
The size of the LP6 headset dynamic ring unit of Audi Audio Network is about 13.14mm.
Then let’s take a look at the motherboard of the headset. First, remove the shell at the bottom of the headset handle, and then pry open the back cover of the headset handle.
The back cover of the headset handle is assembled together through the pillar hole, and the top cover of the headset handle is also provided with copper foil with inductive touch.
List on the back of the headset motherboard.
Remove the headset motherboard from the headset handle.
The wire of the dynamic ring and the battery is connected to the headset motherboard by welding.
Separate the dynamic ring unit and battery wire from the headset motherboard, and the headset motherboard circuit is positive on the front.
List of the back of the headboard motherboard.
The touch IC of Silk Print 33C 2039 is used to achieve the touch control function of the headset.
Connect the Pogo Pin connector of the capacitor touch detection patch.
2 LED lights used to indicate the working state of the headset.
The headset ceramic Bluetooth antenna is close to wireless signal transmission.
The MEMS microphone of Lottery 213 FX62 is specially written to provide the picker function of the voice call for the headset.
Close -up of the metal charging bar charging the headset.
24.000MHz Crystal Special, providing a clock for Bluetooth chip.
The main control chip in the headset uses ACTIONS Torch Core Technology ATS3015 Bluetooth Audio SOC, which has the characteristics of high performance, low power consumption, and low cost. The kernel adopts RISC32 streamlined instruction set structure and has a built -in large -capacity storage space to meet different Bluetooth applications. Support Bluetooth 5.3 dual models, support Bluetooth audio playback, loading sound effects, supporting Bluetooth -free calls, echo elimination and noise reduction algorithms.
According to the disassembly of my love audio network, it is currently available in brands such as small, Sisi, Motorola, Himalayan, Crazy Mi, Netease Cloud, Bulls, Green Lian, Sing Bar, Rode Rhodes and other products. Bluetooth audio main control chip.
Lenovo LP6 headset disassembles the whole family portrait.
Third, my love audio network summary
Lenovo LP6 headset charging box uses the bulk box design of the box cover in appearance. The two V -type arrow indicators are designed in the middle of the charging box. The opening hole is very cool. The appearance of the Lenovo LP6 headset continues the handle of the charging box’s edges and corners. The appearance material and the charging box are made of matte black. The back of the headset also has two arrows with indicator lights.
In the internal configuration of the charging box, the Hall component is provided with the earphones to “open the lid and lift the cover in seconds.” The rated capacity of the charging box has a rated capacity of 1.11Wh, and the headset can achieve a 3rd battery life of up to 30 hours. In terms of power management, the Lenovo LP6 headset uses the INJOINIC British core model IP5518 integrated MCU’s TWS headset charging warehouse management SOC, which provides a maximum 500mA charging current, which can flexibly configure the maximum charging current.
IP5518 built -in IC temperature and input voltage intelligent adjustment of charging current functions; IP5518 can achieve TWS independent warehouse detection, detect the earphones and automatically enter the headset charging mode. After the headset is full, the dormant state is automatically entered. 20UA; Flexible custom headsets are full of satisfactory current, and the current detection accuracy is as high as 1mA. As a result, the headset is charged for 10 minutes to quickly turn on.
In the internal structure of the headset, there are 2 tuning holes to ensure the quality of the headset output sound. In order to achieve the low latency of the game mode, the headset control chip uses Actions Torch Core Technology ATS3015 Bluetooth audio SOC, which has the characteristics of high performance, low power consumption, and low cost. Support Bluetooth 5.3 dual models, support Bluetooth audio playback, loading sound effects, supporting Bluetooth -free calls, echo elimination and noise reduction algorithms.