VS1103b - VLSI

VS1103b MIDI/ADPCM AUDIO CODEC

• 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. . . 13 MHz clock • Internal PLL clock multiplier • Lo.

Features

Description
• 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. . . 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 driv- ing a 30Ω load
• Separate operating voltages for analog, digital and I/O
• 5.5 KiB On-chip RAM f.