VS1000 - Ogg Vorbis Player System Circuit

The VS1000 is a system-on-a-chip. Instead of being yet another "MP3 decoder circuit" the VS1000 plays back Ogg Vorbis, which is both a technically superior format and free of royalty payments. Because of this the VS1000 IC is a cost-effective and high-quality solution for applications where the actual audio format doesn't make a difference, but quality does - like toys and different audio guides. The chip also has NAND FLASH and Full Speed USB interfaces, plus I/O pins that can be used to control e.g. an LCD or OLED matrix display. It can also regulate its internal voltages from a single input voltage, so connecting it to a system is easy.

• Complete player, just memory and crystal needed externally.
• Low-power operation
• Single input voltage: Internal voltage regulation for analog, digital, and I/O power
• Operates from single 12 MHz clock
• Internal PLL clock multiplier
• Power button pin,
• Software-controlled power-off
• USB Full Speed hardware (12Mbit/sec)
• NAND FLASH interface with ECC
• I/O for user interface
• High-quality on-chip stereo DAC with no phase error between channels
• Stereo earphone driver capable of driving a 30­ ohm load