This document describes the product features of the TENDA ELECTRONICS LIMITED TDB380 embedded MP3 module, including support for mp3 file playback, normal mp3 player functions, parallel and serial interfaces for MCU control, loop play function, support for up to 8 pushbuttons to play mp3 files, etc.
The TDB380 is an embedded MP3 module that supports stereo audio playback, up to eight push‑button controls, and both parallel and serial interfaces for MCU control. It can play files from an SD card (32 MB‑2 GB) and offers loop play, folder change, and volume functions.
The document lists the module's electrical specifications, pin functions, and detailed operating mode settings (MP3, Direct‑Play, Parallel, Serial). It also includes instructions for updating files via SD card, EEPROM usage, and contact details for Tenda Electronics.
| Operating voltage | 6 V – 24 V |
|---|---|
| Limited voltage | 5 V – 30 V |
| Standby current (VDD=12 V) | 50 mA |
| Operating current (VDD=12 V) | 100 mA |
| Audio output (max volume) | 200 mVpp |
The module operates from 6 V to 24 V, with a limited voltage range of 5 V to 30 V.
Up to eight push‑buttons can be used, each capable of triggering a file.
MP3 files are updated by inserting an SD card and connecting it to a PC to copy the files.