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 Proc
Full PDF Text Transcription for VS1103b (Reference)
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VS1103b. For precise diagrams, and layout, please refer to the original PDF.
VS1103b Datasheet VS1103b - MIDI/ADPCM AUDIO CODEC Features Description • Mixes three audio sources – General MIDI 1+ / SP-MIDI – WAV (PCM + IMA ADPCM) – Microphone or li...
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– 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 30 Ω load • Separate operating voltages for analog, digital and I/O • 5.