
VLSI
Description
VS8053b is an audio processor with a high performance stereo ADC and DAC. Each device has a factory-programmable unique chip ID that provides a basis for digital rights management or unit identification features. VS8053b supports audio formats that do not require a license (Ogg Vorbis, PCM, IMA-ADPCM, FLAC). By using the Ogg Vorbis encoder plugin the device can be used to build a high performance and low cost digital audio encoder-decoder link.
FEATUREs
• Laser-fused version of VS1053b
• Decodes
Ogg Vorbis;
FLAC with software plugin;
WAV (PCM + IMA ADPCM)
• Encodes Ogg Vorbis w/ software plugin
• Encodes stereo IMA ADPCM / PCM
• Streaming support for WAV
• Unique serial number for user code protection
• EarSpeaker Spatial Processing
• Bass and treble controls
• Operates with a single 12..13 MHz clock
• Can also be used with a 24..26 MHz clock
• Internal PLL clock multiplier
• Low-power operation
• High-quality on-chip stereo DAC with no phase error between channels
• Zero-cross detection for smooth volume change
• Stereo earphone driver capable of driving a 30 Ω load
• Quiet power-on and power-off
• I2S output interface for external DAC
• Separate voltages for analog, digital, I/O
• On-chip RAM for user code and 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 up to 8 GPIO pins
• Lead-free RoHS-compliant package