Product Descriptions
Supports Bluetooth 4.1, automatic reconnection function, WAV+APE+FLAC+MP3 lossless decoding, stereo output, onboard stereo 3W amplifier, USB AUDIO function, built-in TF card download, supports USB flash drive and TF card playback, supports infrared remote control.
Product Parameters
| 【POWER】 | SUPPLY3.7-5V |
| 【SNR】 | 90DB |
| 【THD+N】 | -70DB |
| 【CROSSTALK】 | -86DB |
| 【DNR 】 | 91DB |
| 【SUPPORT PROFILE】 | A2DP/AVCTP/AVDTP/AVRCP/HFP |
| 【Los】 | >15M |
Product Function
Detailed interface description:
| Micro USB 供电 Micro USB power supply | 通用 Micro USB 5V 供电 Universal Micro USB 5V power supply |
| USB Audio | 通过 USB 数据线连接电脑可以用作外置声卡 Connecting a computer through a USB cable can be used as an external sound card |
| U 盘接口 USB interface | 支持播放 U盘中的 MP3/WAV/APE/FLAC 文件,支持 FAT16/32 文件格式 Supports playing MP3/WAV/APE/FLAC files from USB drive, supports FAT16/32 file format |
| LED 指示 LED indicator | 蓝牙模式蓝灯长亮， 音乐模式蓝灯闪烁 Bluetooth mode blue light stays on, music mode blue light flashes |
| TF 卡接口 TF card interface | 支持播放 TF 卡中的 MP3/WAV/APE/FLAC 文件,支持 FAT16/32 文件格式 Supports playing MP3/WAV/APE/FLAC files from TF cards, and supports FAT16/32 file formats |
| 红外遥控 Infrared remote control | 支持红外遥控操作，功能见下述定义 Support infrared remote control operation, as defined below |
| AD key 接口 AD key interface | 按键接口，提供不同的电阻参数，实现不同的按键功能 Key interface, providing different resistance parameters to achieve different key functions |
| 蓝牙解码 IC Bluetooth decoding IC | 解码板主控芯片 Decoding board main control chip |
| 3.5mm 立体声输出 3.5mm stereo output | 标准 3.5mm 接口，输出立体声音源，可插入耳机，连接功放等设备 Standard 3.5mm interface, outputting stereo audio source, can be plugged into headphones, connected to amplifiers and other devices |
| 右声道 3W Right channel 3W | 音频右声道输出， 可驱动 3W 喇叭 Audio right channel output, capable of driving 3W speakers |
| 左声道 3W Left channel 3W | 音频左声道输出，可驱动 3W 喇叭 Audio left channel output, capable of driving 3W speakers |
| 3W*2 功放 3W * 2 power amplifier | 板载2路 3W 功放， 实现立体声驱动 3W 喇叭 Onboard 2-channel 3W power amplifier, realizing stereo driving of 3W speakers |
| 3.7-5V 供电焊盘 3.7-5V power supply pad | 实现外部 3.7-5V 供电改装 Implement external 3.7-5V power supply modification |
Definition of buttons and remote control functions:
| 【按键】 【Button】 | 【功能】 【Function】 |
| PREV/V- | “短按“上一曲，”长按“音量减小 Short press to play the previous song, long press to decrease the volume |
| P/MODE | “短按“播放和暂停切换，”长按“模式切换 Short press to switch between play and pause, long press to switch modes |
| NEXT/V+ | “短按“下一曲，”长按“音量增加 Short press' next track ', long press' volume up' |
| MODE | TF卡、U盘、蓝牙模式切换 TF card, USB flash drive, Bluetooth mode switching |
| RPT | 单曲/循环切换 Single/Loop Switching |
| EQ | 音效模式切换 Sound mode switching |
Operating instructions
1. Mode control
When the decoding board is not plugged in with a USB flash drive or TF card, it defaults to Bluetooth mode when powered on; When the decoding board is plugged into a USB flash drive or TF card, it defaults to music mode when powered on; Switch modes through the MODE key or buttons on the remote control.
2. Music mode
Insert a USB flash drive or TF card to play stored audio files.
3. Bluetooth mode
Switching mode broadcast in English "THE BLUETOOOTH DEVICE IS READY TO PAIR" indicates entering Bluetooth mode and waiting for pairing; The XY-BT "found on the Bluetooth search of the mobile phone is the device name of the decoding board. When you click on the connection, the decoding board prompts" THE BLUETOOL DEVICE IS CONNECTED SUCCESSFULY ", indicating that the decoding board has successfully connected to the mobile phone and can play music.
4 USB AUDIO
USB AUDIO mode, also known as sound card mode, connects the USB AUDIO interface between the computer and the decoding board using a USB data cable. When switching modes, the prompt "USB MODE" in English means USB AUDIO mode. Open the music player on your computer to play music, and you can use the decoding board to play music from your computer; If a TF card is inserted, read and write operations can be performed on the TF card;
Attention: When using USB AUDIO mode, do not insert a USB flash drive
Matters needing attention
1. If playing on a USB flash drive, it is recommended to use USB 5V power supply (not recommended to use 3.7V lithium battery power supply), as early USB flash drives did not support 3.7V voltage
2. When using a power bank or computer, use the POWER interface instead of the USBAUDIO interface to play music from the USB drive.
3. USB flash drive or TF card, decoding board only supports FAT16/FAT32 file system, not NTFS system.
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