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1.1
TAS3308EVM Features
TAS3308EVM Features
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Socketed EEPROM for download of program and coefficients
•
6-channel discrete I
2
S input/4-channel I
2
S outputs
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2-channel SPDIF receiver, optical input, into TAS3308 SDIN1
•
2-channel SPDIF transmitter, optical output from TAS3308 SDOUT1
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2-channel SPDIF, optical input to TAS3308 SPDIFin
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2-channel SPDIF, optical output from TAS3308 SDOUT2/SPDIFout
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A 10-input multiplexed ADC input
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PWM DAC stereo line output
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One PWM DAC Headphone output
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One Line output
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USB to PC connection for software control
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MSP430 for Standalone operation
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Double-sided plated-through PCB layout
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 PC running the PurePath Studio Graphical
Environment (GDE) or Integrated Development Environment (IDE) through the USB interface. In this
mode of operation, the user will develop a signal processing flow (applications) and components using the
PurePath Studio. The resulting programs can be loaded into the EVM EEPROM. The TAS3308 will then
load the EEPROM contents and execute the signal processing flows. During execution, many of the
TAS3308 signal processing flow parameters can be dynamically changed using the PurePath Studio
Graphical development environment. Additional information on using the EVM with the PurePath Studio
development environment is included in subsequent sections of this document and in the PurePath Studio
online documentation.
The EVM has a Reset Button which resets all of the board logic. A red RESET LED is lit when Reset is
active. The EVM also has a Mute button to mute the TAS3308 outputs. The Mute function is automatically
activated following a reset. A yellow mute LED is lit when Mute is active.
The EVM also contains a MSP430F2252 controller that can be programmed to provide stand alone
operation using the EVM push buttons or an IR remote input. The microcontroller interfaces to the
TAS3308 through the I
2
C, GPIO, and the Reset control lines. The microcontroller has and IR receiver,
eight (8) circuit board pushbuttons and eight (8) LEDs to support user inputs.
8
Overview
SLEU093 – March 2008