Texas Instruments TPA5050, User Manual

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1 Introduction
1.1 Description
User's Guide
SLOU184 – July 2006
TPA5051EVM
Contents
1 Introduction
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1
2 Software
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2
3 Operation
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6
4 Reference
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9
5 TPA5051EVM Schematic Diagram
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12
List of Figures
1 TPA5051 in I
2
S Mode With Separate Delays for Left and Right Channels
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3
2 TPA5051 in I
2
S Mode With Frame Delay
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4
3 TPA5051 in Right-Justified Mode
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5
4 TPA5051 in I
2
S Mode – Unable to Communicate
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6
5 Top Layer of the TPA5051EVM
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7
6 Bottom Layer of the TPA5051EVM
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8
7 TPA5051EVM Top Layer
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9
8 TPA5051EVM Second Layer
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9
9 TPA5051EVM Third Layer
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10
10 TPA5051EVM Bottom Layer
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10
List of Tables
1 Bill of Materials
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11
The TPA5051 evaluation module (EVM) consists of a single TPA5051 audio delay device, along with other
external components mounted on a printed-circuit board (PCB) that can be used to independently delay
two digital audio streams. Each digital audio stream consists of a left and right channel, both of which can
be delayed up to 4095 samples (with a 48-kHz sampling rate, that equates to more than 85ms of delay).
The TPA5051EVM is designed to work seamlessly with the TI Input USB board, but can function as a
stand-alone board for pass-through testing in any system. All that is required is an I
2
S audio source, an
I
2
C controller, and a 5-V supply.
The TPA5051EVM also includes an onboard digital-to-analog controller (DAC), the PCM1606, which can
convert I
2
S or left-justified data to an analog out. The analog out is filtered on the board and can be
viewed with a scope probe.
National Instruments is a trademark of National Instruments Corporation.
SLOU184 – July 2006 TPA5051EVM 1
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