MP3 Codec IC - VS1103B

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MP3 Codec IC VS1103B.jpg

VS1103B is a single-chip MIDI/ADPCM/WAV audio decoder and ADPCM encoder that can handle up to three simultaneous audio streams. It can also act as a MIDI synthesizer. VS1103B contains a high-performance, proprietary low-power DSP processor core VS DSP4, working data memory, 5 KiB instruction RAM and 0.5 KiB data RAM for user applications, serial control and input data interfaces, 4 general purpose I/O pins, an UART, as well as a high-quality variable-sample-rate mono ADC and stereo DAC, followed by an earphone amplifier and a common buffer.VS1103b receives its input bitstreams through serial input buses, which it listens to as a system slave. The input streams are decoded and passed through digital volume controls to an 18-bit oversampling, multi-bit, sigma-delta DAC. Decoding is controlled via a serial control bus. In addition to basic decoding, it is possible to add application specific features, like DSP effects, to user RAM memory.Available in a LQFP-48 pin 7x7x1.4mm package.

Features:

  • Mixes three audio sources: General MIDI 1+ / SP-MIDI, WAV (PCM + IMA ADPCM), Microphone or line input
  • Encodes IMA ADPCM from microphone, line input or mixed output
  • Input streams can use different sample rates
  • EarSpeaker Spatial Processing
  • Bass and treble controls
  • Operates with a single 12 to 13 MHz clock
  • Internal PLL clock multiplier
  • Low-power operation
  • High-quality on-chip stereo DAC with no phase error between channels
  • Stereo earphone driver capable of driving a 30Ω load
  • Separate operating voltages for analog, digital and I/O
  • 5.5 KiB On-chip RAM for user code / data
  • Serial control and data interfaces
  • Can be used as a slave co-processor
  •  SPI flash boot for special applications
  • UART for debugging purposes
  • New functions may be added with software and 4 GPIO pins


Availability

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