MP3 Bluetooth 4.1 Decoder Board Module

The MP3 Bluetooth 4.1 Decoder Board Module receives Bluetooth audio from a paired smartphone or tablet, decodes the compressed audio stream, and outputs an analog line-level audio signal ready to feed into a power amplifier. The TD5168A chip handles both the Bluetooth 4.1 radio and the audio decoding on one IC, keeping the board compact size while supporting the A2DP profile — the Bluetooth profile used for stereo music streaming from phones and tablets to wireless speakers.

The mp3 bluetooth decoder module SNR of 90 dB and dynamic range of 91 dB sit at adequate levels for most DIY speaker builds where the amplifier and speaker quality are the limiting factors in audio performance, not the decoder module itself. The 15 metre line-of-sight Bluetooth range covers room-scale wireless audio without dropouts under typical indoor conditions. Operating voltage from 3.7V to 5V DC means the hw 770 bluetooth 4.1 mp3 decoder module runs from a single 18650 Li-Ion cell at 3.7V or a standard 5V USB supply equally — useful for battery-powered portable speaker.

The AVRCP profile enables basic playback control commands — play, pause, skip — from the decoder back to the source device, so a button connected to the module can control phone playback remotely. HFP profile support means the module also handles phone call audio for hands-free. The mp3 decoder board suits DIY Bluetooth speaker, amplifier module, audio wireless retrofit, and battery-powered audio receiver projects. This module on wireless audio systems and practical Bluetooth audio.

Related Product:

• Explore Audio Amplifier Module

Features:

• TD5168A single-chip handles Bluetooth 4.1 radio and audio decoding together
• A2DP profile receives stereo music stream from paired smartphones and tablets
• AVRCP support enables remote playback control back to the paired source device
• 90 dB SNR delivers clean audio output into connected power amplifier stages
•  mp3 decoder board 3.7V to 5V supply runs from 18650 Li-Ion cell or USB power source

Technical Specifications:

 Applications:

• MP3 decoder module adds wireless audio input to DIY passive speaker and audio projects.
• Retrofit existing wired car audio systems with wireless Bluetooth music playback.
• Build portable battery-powered Bluetooth speakers using MP3 Bluetooth decoder board.
• Connect HW 770 Bluetooth 4.1 MP3 decoder module with amplifiers for diy speaker systems.
• Bluetooth decoder board MP3 adds phone call hands-free audio to custom intercom enclosure build.

Package Include:

• 1 x MP3 Bluetooth 4.1 Decoder Board Module