Datasheet

VS1053b Datasheet

9 FUNCTIONAL DESCRIPTION

9 Functional Description

9.1 Main Features

VS1053b is based on a proprietary digital signal processor, VS_DSP. It contains all the code

and data memory needed for Ogg Vorbis, MP3, AAC, WMA and WAV PCM + ADPCM audio

decoding and a MIDI synthesizer, together with serial interfaces, a multirate stereo audio DAC

and analog output ampliﬁers and ﬁlters. Also PCM/ADPCM audio encoding is supported us-

ing a microphone ampliﬁer and/or line-level inputs and a stereo A/D converter. With software

plugins the chip can also decode lossless FLAC as well as record the high-quality Ogg Vorbis

format. A UART is provided for debugging purposes.

Version: 1.22, 2014-12-19 33