JL AC6955F Bluetooth 5.1 audio module + SD card playback

AC6955F Bluetooth 5.1 audio module + SD card

A multimedia player based on the Jieli JL AC6955F development, supporting Bluetooth 5.1 and SD card playback. Include lithium battery charging IC (TP4054) and Type-C interface for power supply.

Schematic JL AC6955F Bluetooth 5.1 audio module + SD card + tp4054 battery charger

Schematic Jl Ac6955F Bluetooth 5.1 Audio Module + Sd Card
Schematic Jl Ac6955F Bluetooth 5.1 Audio Module + Sd Card

JL AC6955F is Jieli new generation Bluetooth speaker chip, with the following features:

  • Supports Bluetooth 5.1, supports Bluetooth dual mode (classic Bluetooth+EDR+Bluetooth Low Energy);
  • Supports multiple audio formats, including MP3, wav, flac, and ape lossless decoding;
  • Supports serial AT command control;
  • Multi-functionality, supports Bluetooth audio, card music reading, and other modes.

This player has verified the Bluetooth and TF card audio playback functions and performs well.

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Ac6955F Bluetooth 5.1 Audio Module + Sd Card Battery
Battery Detail

The detailed parameters of the design are as follows:

  • There are 4 function buttons on the right side of the board for function switching, song switching, and play/pause functions;
  • Uses a Type-C interface for power supply to the player;
  • On-board lithium battery charging IC (TP4054), supports battery power supply (recommended battery capacity of 400mAh);
  • Added a power switch to completely cut off battery power when not in use, extending battery life;
  • Reserved a serial port for debugging, controlling the AC6955F through AT commands.

About Jieli AC6955F Bluetooth chip

Jieli Jl Ac6955F Bluetooth Chip
Jieli Jl Ac6955F Bluetooth Chip

Jieli AC6955F is a Bluetooth chip commonly used in various electronic devices. It is known for its reliable performance and low-power consumption. The chip supports Bluetooth 5.0 technology, allowing for stable and efficient wireless connectivity. It is often used in audio devices such as headphones, speakers, and earbuds, providing a seamless and high-quality audio experience. The Jieli AC6955F chip also offers features like noise cancellation and compatibility with different audio codecs. Overall, it is a popular choice for manufacturers looking to incorporate Bluetooth functionality into their products.


About IC TP4054

The IC TP4054 is a specialized integrated circuit that is commonly used in battery charging applications. It is particularly designed for single-cell lithium-ion or lithium-polymer batteries. The IC TP4054 offers a highly efficient and compact solution for charging these types of batteries, as it integrates various functions and features into a single chip. It includes a programmable constant current (CC) and constant voltage (CV) charging algorithm, which ensures safe and optimal charging of the battery. The IC TP4054 also incorporates built-in safety features such as overcharge protection, over-discharge protection, and thermal regulation, which help prevent potential damage to the battery. Additionally, its small footprint and low power consumption make it suitable for a wide range of portable electronic devices, including smartphones, tablets, and wearable devices. Overall, the IC TP4054 is a reliable and convenient charging solution that effectively manages lithium-ion or lithium-polymer batteries, ensuring their longevity and optimal performance.

Ac6955F Bluetooth 5.1 Audio Module + Sd Card Pcb Bottom
Bottom Pcb

Bom AC6955F Bluetooth 5.1 audio module + SD card playback + battery charger

Quantity Designator Description Value
3 R1, R5, R8 0402 1K
3 R2, R6, R12 0402 0
1 R3 0402 3.3k
1 R4 0402 6.8k
1 R7 0402 9.1k
1 R9 0402 15k
1 R10 0402 24k
1 R11 0402 22k
1 C1 0402 2.7pF
7 C2,C3,C4,C5,C6,C7,C8 0402 1uF
2 C9,C10 CASE-B-3528 Tantalum Capacitors 100uF/6.5V
1 D1 40V Schottky Barrier Diodes (SBD) 1N5819WS S4 – SOD-323
2 LED1,LED2 0603 Red Led
1 U1 JIELI qsop24 32 bits DSP Bluetooth AC6955F
1 U2 SOT-23-5 Battery Management TP4054-42-SOT25R
1 USB1 Type-C SMD USB Connectors 16 pin TYPE-C 16PIN 2MD (073)
1 CARD1 SMD SD Card Connectors TF-01A
1 F1 6V 0.5A 40A 1A 0603 Resettable Fuses JK-SMD0603-050-6
4 SW1,SW2,SW4,SW5 KEY-SMD_TX-1010-X-X SMD Tactile Switches
1 SW3 SMD Slide Switches SK-3296S-01-L1
1 H1 Pin Headers 2.54_1×4P
1 J1 headphone jack PJ-3420-A-SMT
1 X1 M49SMD Crystal 24MHz

Download files, links, and notes for AC6955F Bluetooth 5.1 audio module + SD card playback

Ac6955F Bluetooth 5.1 Audio Module + Sd Card 3D Pcb
Pcb 3D

Download PCB in Gerber and PDF



Source: https://oshwhub.com/xyzdiy/ac6955_bluetooth_audio

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About the author
Xtronic.org blog author. Electronics technician for the technical school of Brasilia - Brazil. Interested in electronics, circuits and technology in general.

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