@blevoice

Junluan Tsui

@blevoice

Embedded electronics engineer, devoting to developing products and projects related to Bluetooth chips/modules, voice chips/modules.

Joined July 2025

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Junluan Tsui's blogs

Bluetooth and Voice chip - Dev. and App.ble-voice.hashnode.dev60 posts

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ble-voice.hashnode.dev

JieLi AC695N, AC696N Bluetooth Chip Hardware Design Specification - Circuit Design Guide (3)

1.4 DAC Anti-Interference Circuit Description AC695N and AC696N support DACL/DACR differential mode and DACL/DACR/VCOMO stereo mode. Schematic is as follows: (1) It is recommended to reserve anti-interference circuits for the DAC section; if space ...

Jan 212 min read

ble-voice.hashnode.dev

Guide to Adding BLE Connection Passcodes for the KT1025A Bluetooth Chip

Introduction The BLE function of the KT1025A Bluetooth chip supports connection passcodes. By default, the passcode is fixed at 6 digits, and its length cannot be changed. In the default program, the passcode is set to 123456. Please note that each d...

Jan 122 min read

ble-voice.hashnode.dev

JieLi AC695N, AC696N Bluetooth Chip Hardware Design Specification - Circuit Design Guide (1)

Special Notes: The input voltage on the VBAT power pin must not exceed 5.0V. The voltage on the LDO_IN charging input pin must not exceed 5.5V. A capacitor placement to ground must be reserved for LDO_IN.For speakers or headphones using the intern...

Jan 102 min read

ble-voice.hashnode.dev

Jieli Bluetooth Smart Speaker Development: Common Issues with AC696N SoCs

During the development of Bluetooth smart speakers using Jieli's AC696N series SoCs, developers may encounter several common issues. This article summarizes these problems and provides corresponding solutions to help streamline the development proces...

Jan 63 min read

ble-voice.hashnode.dev

Jieli Bluetooth Smart Speaker Development: Key Considerations for AC696N SoCs

When developing Bluetooth smart speakers based on Jieli's AC696N series of SoCs, paying attention to certain hardware and software details can significantly improve development efficiency and system stability. This article summarizes several key poin...

Dec 29, 20253 min read

Junluan Tsui

About

Available for

Junluan Tsui's blogs

Recently published

JieLi AC695N, AC696N Bluetooth Chip Hardware Design Specification - Circuit Design Guide (3)

Guide to Adding BLE Connection Passcodes for the KT1025A Bluetooth Chip

JieLi AC695N, AC696N Bluetooth Chip Hardware Design Specification - Circuit Design Guide (1)

Jieli Bluetooth Smart Speaker Development: Common Issues with AC696N SoCs

Jieli Bluetooth Smart Speaker Development: Key Considerations for AC696N SoCs

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Junluan Tsui

About

Available for

Junluan Tsui's blogs

Recently published

JieLi AC695N, AC696N Bluetooth Chip Hardware Design Specification - Circuit Design Guide (3)

Guide to Adding BLE Connection Passcodes for the KT1025A Bluetooth Chip

JieLi AC695N, AC696N Bluetooth Chip Hardware Design Specification - Circuit Design Guide (1)

Jieli Bluetooth Smart Speaker Development: Common Issues with AC696N SoCs

Jieli Bluetooth Smart Speaker Development: Key Considerations for AC696N SoCs