Jan 21 · 2 min read · 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 ...
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Jan 10 · 2 min read · 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...
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Jan 6 · 3 min read · 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...
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Dec 26, 2025 · 3 min read · I. Application Background With the development of urban intelligent transportation, accessibility facilities are receiving increasing attention. For visually impaired individuals, relying solely on visual traffic signals is insufficient for safe stre...
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Oct 16, 2025 · 3 min read · 1. Upgrade and Download Instructions Connect the chip’s USB port to a standard USB interface. The first pin is the chip’s power supply pin. 1.1. Upgrade Operations In most cases, when downloading a program to a development board or prototype, the reg...
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Oct 10, 2025 · 2 min read · Preface Thank you very much for using the JieLi (JL) Forced Upgrade Tool 4.0! Before officially using the tool, please read this manual carefully to ensure correct and safe operation. After reading, please keep this manual properly for future referen...
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Sep 10, 2025 · 4 min read · I. Introduction Many engineers often have deep doubts about Key - related issues when developing JieLi Bluetooth chips: What is a Key file? How is a Key file generated? Why is a Key file needed? How to add a Key file? How to handle relevant erro...
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Sep 7, 2025 · 1 min read · Test Box Audio File Update Instructions 1.Place the audio files to be updated (media1.sbc and media2.sbc) in the same directory as AC690x_1T2 Test Box_Slave V1.0.2.exe. If these files are absent, the default built-in files will be used. 🔹 Method 1: ...
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Sep 1, 2025 · 2 min read · Method 1: Firmware Upgrade for One - to - Two Test Box Using a Small Tool The test box contains three chips: two slave chips (running the same program) and one master chip. Firmware upgrades require updating all three chips. Slave Firmware Upgrade P...
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Aug 19, 2025 · 1 min read · 1. Enable various test functions based on actual requirements, configure the dip switch settings, and determine whether to test call frequency deviation. 2. The test box can connect to two devices simultaneously for testing. It is recommended to have...
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