1.1
TAS3208EVM-LC Features
TAS3208EVM-LC Features
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•
Three serial digital stereo inputs (S/PDIF, I
2
S, left- or right-justified)
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Two serial digital stereo outputs (S/PDIF, I
2
S, left- or right-justified)
•
Three analog stereo inputs multiplexed to one analog-to-digital converter
•
One analog stereo digital-to-analog output
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One analog stereo line output
•
One 24-mW, 3.5-mm headphone output jack
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One 3.5-mm stereo line input jack
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USB interface for I
2
C control via PurePath Studio GDE
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Double-sided plated-through PCB layout
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Three LED status indicators for reset, I
2
C, and USB link
The primary usage mode of the EVM is to provide a software development platform that receives the
control and signal processing flow descriptions from a host PC running the PurePath™ Studio Graphical
Environment (GDE) or Integrated Development Environment (IDE) through a Universal Serial Bus (USB)
interface. In this mode of operation, the user develops a signal processing flow and custom components
using PurePath™ Studio. The resulting process flows can be loaded into the EVM EEPROM via the USB.
The TAS3208 then loads the EEPROM contents and executes the signal processing flows. During
execution, many of the TAS3208 signal processing flow parameters can be dynamically changed using
the PurePath™ Studio Graphical Development Environment, allowing the user to customize the process
flow without resetting the device.
The TAS3208EVM-LC contains hardware logic, which can be utilized to reset the TAS3208 Digital Audio
Processor without disconnecting and re-enumerating the USB Controller. A red LED indicates the period
in which the reset is active. Additional on-board LEDs indicate that the board is powered, Active I
2
C
transactions from either a host controller or the EEPROM, and that the USB link to the host PC is
established.
Further information on using the EVM with the PurePath Studio GDE is included in subsequent sections of
this document and through additional PurePath Studio documentation.
Overview
8
SLEU097 – April 2008
