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VLSI - Ogg Vorbis Player IC

Numéro de référence VS1000
Description Ogg Vorbis Player IC
Fabricant VLSI 
Logo VLSI 





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VS1000 fiche technique
VS1000 Datasheet
VS1000 - Ogg Vorbis Player IC with
USB and NAND FLASH Interface
Hardware Features
Low-power operation
Single input voltage: Internal voltage reg-
ulation for analog, digital, and I/O power
Operates with a single 12 MHz clock
Internal PLL clock multiplier
Power button pin,
software-controlled power-off
USB Full Speed hardware
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 load
Lead-free RoHS-compliant package
(Green)
Firmware Features
Implements USB Mass Storage Device
and Audio Device
NAND FLASH handling with error cor-
rection, block remapping, and wear lev-
elling
Default player application in firmware
Decodes Ogg Vorbis, sound level
normalization using Replay Gain
Pause / Play
Volume control
Next / Previous Song
Rewind and Fast Forward
Random Play
EarSpeaker Spatial Processing
Bass and treble controls for customized
player
NAND FLASH boot for customized player
SPI FLASH boot for special applications
UART for debugging and special appli-
cations
Description
VS1000 is a single-chip Ogg Vorbis (license-
free audio codec) player and a system-on-a-
chip (SoC) for various control and audio ap-
plications. VS1000 contains a high-perfor-
mance low-power DSP core VSDSP4, NAND
FLASH interface, Full Speed USB port, gen-
eral purpose I/O pins, SPI, UART, as well as a
high-quality variable-sample-rate stereo DAC,
and an earphone amplifier and a common
voltage buffer.
VS1000 firmware implements a default player
that reads and plays files from NAND FLASH.
The player can be customized or replaced by
boot from NAND FLASH or SPI memory.
When connected to USB, the firmware imple-
ments USB Mass Storage Device protocol or
acts as an Audio Device, providing a single-
chip USB headphone application.
EarSpeaker spatial processing provides more
natural sound in headphone listening condi-
tions. It widens the stereo image and posi-
tions the sound sources outside the listener’s
head.
SPI EEPROM can be used to load code in
applications that do not use NAND FLASH.
Version: 1.44, 2014-12-19
1

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