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VS2000 Datasheet, PDF (1/21 Pages) List of Unclassifed Manufacturers – Headtracking Multichannel USB Audio Headphone IC / USB DAC | |||
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VS2000 PRELIMINARY
VS2000
VS2000 - Headtracking Multichannel
USB Audio Headphone IC / USB DAC
Hardware Features
⢠Low-power operation
⢠Single input voltage: Internal voltage regu-
lation for analog, digital, and I/O power
⢠Operates with a single 12 MHz clock
⢠Internal PLL clock multiplier
⢠USB Full Speed hardware
⢠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
⢠5.1-channel USB Audio Device
⢠Human Interface Device (HID) Buttons
â Volume Decrement
â Volume Increment
â Pause
â Play
â Rewind
â Fast Forward
⢠Volume controls also work without HID-
aware host
⢠Four room effect levels selected with Effect
Level Button
⢠Tracking On / Tracking Off / Bypass modes
selected with Power Button
⢠Bass and treble controls through USB Au-
dio Feature Unit
⢠Advanced controls through separate software
⢠SPI EEPROM boot for special applications
⢠UART for debugging and special applica-
tions
Description
VS2000 is a single-chip multichannel headtrack-
ing USB Audio IC with audio output to head-
phones. VS2000 contains a high-performance low-
power DSP core VS DSP4, Full Speed USB port,
general purpose I/O pins, SPI, UART, as well as
a high-quality variable-sample-rate stereo DAC,
and an earphone ampliï¬er, and a common voltage
buffer.
When connected to USB, VS2000 ï¬rmware con-
trols an ultrasound transmitter and reads ultrasound
receivers to track the movement of the listenerâs
head. VS2000 then performs real-time spatial pro-
cessing to the 5.1 audio channels to position each
sound source correctly depending on the head move-
ment.
An application without headtracking and just with
5.1 audio is also possible.
SPI EEPROM can be used to load code to cus-
tomize the system.
Version 0.3, 2007-09-05
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