TWS_Shenzhen Pace Electronics Co.,Ltd

TWS

The full name of TWS is True Wireless Stereo, which means true wireless stereo. TWS technology is developed based onBluetooth...

Tws scheme

The full name of TWS is True Wireless Stereo, which means true wireless stereo. TWS technology is developed based on Bluetooth chip technology. Its working principle is that the mobile phone connects to the main earphone, and then the main earphone quickly connects to the secondary earphonewirelessly, so as to realize the true wireless separation of the left and right channels of Bluetooth. Its main features are：

Block diagram of the headset：

The main parts：

Item

Part Name

Part No

Brand

Advantage

Three-axis sensor

LIS2DH12TR

The single-axis function can be adjusted independently to reduce false triggering, 2uA sleep current, 120μA working current.

Three-axis sensor

LIS2DW12TR

The single-axis function can be adjusted independently to reduce false triggering, 1uA sleep current, and 90μA working current.

Six-axis sensor

LSM6DSOW

Nodding/shaking head motions to answer/hang up calls, play/pause of music to track head rotation, realize the spatial audio effect of headphones, and 3uA sleep current.

Bone Conduction Sensor

LIS25BATR

Real-time separation of human voice and environmental noise, greatly improving the clarity of the call.

BMS

JSTD060AA65D1

Jestek

No need for external RC filter circuit, reducing cost and friendly design

Silicon

ML-3862-2718-B1H2

Svsens

——

Silicon

ML-3862-2718-B1Z2

Svsens

——

Silicon

ML-3862-2718-B1R2

Svsens

——

Silicon

ML-3862-2718-B1Z1

Svsens

——

Silicon

ML-4259-2718-T1L1

Svsens

——

Block diagram of charging compartment：

The main parts ：

Item

Part Name

Part No

Brand

Advantage

MCU

STM32L031K6U6

Low power consumption, stable

MCU

STM32G031G8U6

Low power consumption, stable

MCU

STM8L051F3P6

Low power consumption, stable

OVP

ET9528

ETEK

36V high input withstand voltage

OVP

ET9612Y

ETEK

36V high input withstand voltage, DFN4 small package

HALL

ET3712A

ETEK

ET3712A multiple package options, DFN4, SOT23-3, TO-92S

BOOST

MT3608

Aerosemi

——

ESD

ESDZV5-1BU2

——

ESD

E1B5V0P35N632

Jestek

——

ESD

E1B5V0P5N162

Jestek

——

LDO

STLQ020

——

LDO

LD39130S

——

LDO

BL8077

BELLING

——

Wireless charging SOC

CWR-0505Q

Celfras

Low static power consumption, support WPC1.2.4 standard, support BPP, support wired and wireless charging management

Component Distribution

Consumer Electronics

TWS

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