MIDI/ADPCM AUDIO CODEC
VS1103b Datasheet
VS1103b - MIDI/ADPCM AUDIO CODEC
Features
Description
• Mixes three audio sources
– General MIDI 1...
Description
VS1103b Datasheet
VS1103b - MIDI/ADPCM AUDIO CODEC
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 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 soft-
ware and 4 GPIO pins
VS1103b is a single-chip MIDI/ADPCM/WAV audio decoder and ADPCM encoder that can handle upto 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,...
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