VS1003B MP3 Module Decoding Containing Microphones

The VS1003 audio codec module is a complete MP3/WMA/MIDI audio decoder and ADPCM encoder which features a high quality stereo DAC (Digital to Analog Converter), a 16-bit adjustable ADC (Analog to Digital Converter) and a high quality stereo earphone driver (30 Ohm). This module is ideal for adding audio decoding and encoding capabilities to embedded systems.

1, VS1003: VS1003 audio decoding format: MP3, MP3 + V, WMA, WAV, MIDI, SP-MIDI; recording encoding format: IMA ADPCM (mono), microphone and line input (Line input) two input methods; Supports MP3 and WAV streams; low power consumption; with internal phase-locked loop clock multiplier; high quality stereo digital-to-analog converter (DAC); 16-bit adjustable on-chip analog-to-digital converter (ADC); high quality stereo Earbud drive (30 ohms); separate analog, digital and IO power supplies; serial data and control interface (SPI);

2, SPI interface, control signal lines are led out

3, 1 earphone and audio output interface

4, 1 microphone for recording

5, 1 line_in input interface

6, the power indicator

7, on-board 3.3V and 2.5V LDO 1117, providing 800mA maximum current

8, single power supply: +5VDC, capacitor filter

9,12.288 Mhz crystal oscillator