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Texas Instruments TAS6424-Q1 User manual

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1
SLOU453A–September 2016–Revised October 2017
Submit Documentation Feedback Copyright © 2016–2017, Texas Instruments Incorporated
TAS6424-Q1 Evaluation Module
User's Guide
SLOU453A–September 2016–Revised October 2017
TAS6424-Q1 Evaluation Module
This manual describes the operations of the TAS6424Q1EVM. The TAS6424Q1EVM is a stand-alone
EVM. The PurePath™ Control Console 3 GUI (PPC3) is used to initialize and operate the EVM. The main
topics of this document are:
• Hardware implementation and descriptions
• Software implementation and descriptions
• TAS6424 EVM operations (hardware and software)
Required equipment and accessories:
1. TAS6424 EVM
2. USB A male to micro B male cable
3. Power Supply Unit (PSU) up to 26.4 V, > 6 A capable, if J12 is removed and 12 V is provided.
If J12 is in, limit the input voltage to 18 V.
4. 1-4 resistive loads or speaker loads
5. 2-6 pair of wires stripped both ends
6. 2-mm slotted screwdriver
7. Optical audio source (optional)
8. Optical SPDIF cable (optional)
9. Desktop or laptop PC with Microsoft®Windows®7 operating system
Contents
1 Hardware Overview.......................................................................................................... 2
2 Hardware Overview.......................................................................................................... 3
3 Software Overview........................................................................................................... 4
4 Board Layouts, Bill of Materials, and Schematic....................................................................... 20
List of Tables
1 TAS6424Q1EVM Bill of Materials........................................................................................ 24
Trademarks
PurePath is a trademark of Texas Instruments.
Microsoft, Windows are registered trademarks of Microsoft Corporation.
All other trademarks are the property of their respective owners.
Hardware Overview
www.ti.com
2SLOU453A–September 2016–Revised October 2017
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Copyright © 2016–2017, Texas Instruments Incorporated
TAS6424-Q1 Evaluation Module
1 Hardware Overview
1.1 TAS6424E3 Evaluation Module Description
The TAS6424-Q1 EVM is a stand-alone EVM. It has single power supply input, USB control via PurePath
Control Console 3 (PPC3) and two digital (I2S) audio input options. See the EVM block diagram in
Figure 1.
Figure 1. TAS6424-Q1 EVM
3.3V
LDO
TAS1020B
3.3V
I2S
GPIO
EEPROM I2C
DIR9001
4.5-26V
INPUT
USB
AUDIO
INPUT
OPT -SPDIF
4.5-26V
TAS6424
OUTPUTS
TAS1020B is turned off during EMC test
STBY SW
GPIO
2nd
ORDER LC
FILTER
SPDIF POWER SW
2nd
ORDER LC
FILTER
SHUTDOWN
MUTE
FAULT
WARN
I2S
SOURCE
SELECT
LED
External
I2S
MUTE SW
SPDIF
3.3V
5V-USB
3.3V
3.3V
3.3V
SPDIF LOCK
Selects Optical
Remove
Resistors
For External
I2S Input
Copyright © 2016, Texas Instruments Incorporated
www.ti.com
Hardware Overview
3
SLOU453A–September 2016–Revised October 2017
Submit Documentation Feedback Copyright © 2016–2017, Texas Instruments Incorporated
TAS6424-Q1 Evaluation Module
The block diagram shows the TAS6424E3 EVM signal flow.
Figure 2. EVM Block Diagram
2 Hardware Overview
2.1 TAS6424E3 Evaluation Module Functions
• The EVM only needs single supply to operate
• The VBAT can be separated for PVDD operation higher than 18 V
• Two audio sources can be selected readily
1. If USB is selected, Windows Media Player can be used to stream audio.
2. If optical is selected, an optical source such as DVD player can be used to stream audio.
3. If external digital audio source such as Programmable Serial Interface Adapter (PSIA) from Audio
Precision, series resistors on I2S signals can be removed and jumpers can be used to insert
external I2S signals.
• There are three switches
1. SPDIF power switch turns on and off optical to I2S converter.
2. Standby switch puts the device on or out of standby.
3. Mute switch stops or starts PWM modulation.
• USB connection also uses as a controller via I2C. The Pure Path Console 3 is the User Interface
sending I2C commands to the device. PPC3 will be discussed in a later section.
Software Overview
www.ti.com
4SLOU453A–September 2016–Revised October 2017
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Copyright © 2016–2017, Texas Instruments Incorporated
TAS6424-Q1 Evaluation Module
3 Software Overview
3.1 PurePath™ Console 3 (PPC3) Access and Description
The PPC3 is a server-based tool. Access can be requested on
http://www.ti.com/tool/PUREPATHCONSOLE.
Once approval is given, go to www.ti.com/mysecuresoftware to download the software. After login, the
user will see this web page with a similar list of software products available for download.
Figure 3. PPC3 Download Window
www.ti.com
Software Overview
5
SLOU453A–September 2016–Revised October 2017
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TAS6424-Q1 Evaluation Module
Run the installation program. Also download the PPC3 User Manual (SLOU408) for further instructions.
The following window is displayed when first running PPC3.
Figure 4. PPC3 Window
When the window in Figure 4 is displayed, click on “sign in” to see TAS6424 EVM application. All of the
apps shown below may not be displayed for the user.
Software Overview
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6SLOU453A–September 2016–Revised October 2017
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TAS6424-Q1 Evaluation Module
Click on TAS6424 App box to download TAS6424 application. Installation window will pop up, then click
“Install”.
TAS6424 EVM box will appear in “Installed EVM Apps” section, see Figure 5. Click on TAS6424 box to
launch TAS6424 App.
Figure 5. Available Apps Window
www.ti.com
Software Overview
7
SLOU453A–September 2016–Revised October 2017
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TAS6424-Q1 Evaluation Module
3.2 PurePath™ Console 3 – TAS6424 EVM Home Window
When the TAS6424 EVM PPC3 is launched, the Home Window is shown. If the EVM is powered on and
the USB is connected to the PC, the Home Window will display “Connect” box in the bottom right hand
corner. If the EVM is not powered on or the USB is not connected, only “TAS6424 EVM – Offline” is
displayed.
Figure 6 shows the downloading progress of TAS6424 applications.
Figure 6. PPC3 Window
Software Overview
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8SLOU453A–September 2016–Revised October 2017
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TAS6424-Q1 Evaluation Module
There are three windows available with the TAS6424 EVM PPC3: Home Window, Register Map Window
and Device Monitor and Control Window.
Figure 7. TAS6424 EVM Home Window
www.ti.com
Software Overview
9
SLOU453A–September 2016–Revised October 2017
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TAS6424-Q1 Evaluation Module
3.3 PurePath™ Console 3 – TAS6424 EVM Register Map Window
When click on Register Map Box on the Home Window, the Register Map Window is displayed. The
Register Map indicates the current setting of all the registers in TAS6424.
Figure 8. TAS6424 EVM Register Map Window
Software Overview
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10 SLOU453A–September 2016–Revised October 2017
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TAS6424-Q1 Evaluation Module
3.4 PurePath™ Console 3 – TAS6424 EVM Monitor and Control Window
When click on Device Monitor and Control Box on the Home Window, the Device Monitor and Control
Window is displayed. The Register Map indicates the current setting of all the registers in TAS6424.
Figure 9. TAS6424 EVM Device Monitor and Control Window