VLSI VS1033d
VS1033 is a single-chip MP3/AAC/WMA/MIDI (CBR +VBR +ABR); layers I & II op- audio decoder and ADPCM encoder. It con- tional; tains a high-performance, proprietary low-power MPEG4 / 2 AAC-LC-2.0.0.0 (+PNS); DSP processor core VS_DSP4, working data WMA 4.0/4.1/7/8/9 all profiles (5-384 kbps); memory, 5 KiB instruction RAM and 0.5 KiB WAV (PCM + IMA ADPCM); data RAM for user applications, serial control General MIDI / SP-MIDI format 0 files and input data interfaces, upto 8 general pur- • Encodes IMA ADPCM from microphone pose I/O pins, an UART, as well as a high- or line input quality variable-sample-rate mono ADC and • Streaming support for MP3 and WAV • EarSpeaker Spatial Processing • Bass and treble... The input stream is decoded and passed through a digital volume control to an 18-bit oversampling, multi-bit, sigmadelta DAC.
VLSI
