containsmachine

SUPERHIFI mp3 based on ac6905a

Overview

The main control IC is Jerry's AC6905A, which has low power consumption and simple peripherals.
It mainly reads music files through TF cards (actually measured, it can read TF memory cards with a capacity of up to 128G). It is equipped with a Bluetooth function and can output music from Bluetooth through the headphone jack. The audio signal
is equipped with a TP4057 charging chip, with dual lights (yes/no) to indicate charging completion status (although I have never seen this thing light up)
and four-button control, which can switch TF card reading/Bluetooth receiving mode. Pause/play, Next song/volume+, previous song/volume-
toggle switch control switch (seems like nonsense), with power-off memory
PS: Lao Goose (now Love Tomb Style) communication group: 232586710
My communication group: 1092437569
this This is
the video of the finished product at station b: https://b23.tv/5CauV05

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-06-19 18:24:53

Request PT22622272 schematic diagram
Is there anyone who has worked with PT2262 and PT2272? Can you share the design schematic with me? Thank you.
LCD Driver
Hey guys, I'm adding a framebuffer-based LCD driver. After the driver is started, there are several input cursors flashing on the screen. When inputting, there are outputs at the corresponding cursors
I2C Library Functions
Dear experts, I use STM32F103VBT and 24C08 to communicate via I2C, using the library (V2.03) function to write data first and then read. During the reading process, SR1 at EV6 becomes 0x0044, while th
Ultrasonic utility knife (cutting knife) 2999RMB ???
[i=s]This post was last edited by DavidZH on 2019-5-1 16:06[/i] As an electronics enthusiast, DIY is inevitable. As the saying goes, a good tool is a must. I have been paying attention to an ultrasoni
The best Peretel99SE Chinese version
Information: This is my collection of many years, now available for everyone to share. There are many functions that are not available in the Chinese version on the market. [:)][:)]
[MCU Programming Architecture] After reading this article, you can also become a programming expert
[align=left][align=left][align=center][/align][align=left]When you first learn programming, you will always read some programs, but after reading the programs, you can only understand a small part of

Datasheet More

Circuits More