扩音器模块--mp3委员会，司机amplifie

amplifier module--mp3 player board Feature 1. control by MCU or pushbuttons 2.play mp3 files selected by serial command 3.With play/pause, next, prev. vol-,Vol+ button interface 3.Mp3 files save in SD card 4. Built in two TDA2030A amplfier IC 5.Stereo audio output 6. DC12V power 7. Supports MP3 format,stereo audio output 8. Supports for 32Mb to 2GB of SD card. 9. Powerful anti-jamming with stable performance 10. Play 10 different mp3 files by corresponding connected buttons/ switches, or change program to become matrix control , so can play 30 songs by buttons . Technical Parameters *Operating voltage: AC8 18V,or DC8 18V *Rated output: 10W × 2 (RL = 8Ohm d = 1%) *Frequency response: 20 20 KHz * Voltage noise: ≤ 50MV *S/N(signal to noise ratio): ≥ 86db *Plate Size: 150 × 80mm Applications 1. mp3 bell , door bell / chime play mp3 music 2. Graden , banks , schools , hosplitals , etc . mp3 module,mp3 player , embedded audio module , serial mp3 module