Texas Instruments TAS5431-Q1EVM User manual

1
SLOU529A–April 2020–Revised June 2020
Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated
TAS5431-Q1EVM User's Guide
User's Guide
SLOU529A–April 2020–Revised June 2020
TAS5431-Q1EVM User's Guide
Trademarks
Purepath, SpeakerGuard are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners.
1 Introduction
TheTAS5431-Q1 evaluation module (EVM) is intended to demonstrate the capabilities of the TAS5431-Q1
device. All the device features can be accessed through the hardware and the software graphical user
interface (GUI) which is supplied. This user's guide contains a description of the EVM and the GUI. The
schematic, bill of materials (BOM), and board layout are included.

Introduction www.ti.com
2SLOU529A–April 2020–Revised June 2020
Submit Documentation Feedback
Copyright © 2020, Texas Instruments Incorporated
TAS5431-Q1EVM User's Guide
Figure 1. TAS5431-Q1 EVM

www.ti.com Introduction
3
SLOU529A–April 2020–Revised June 2020
Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated
TAS5431-Q1EVM User's Guide
1.1 Features
• Runs without I2C initialization
• Has a control GUI via USB
1.2 Description
The TAS5431Q1EVM showcases the TI TAS5431-Q1 analog input class-D closed-loop mono amplifier.
The EVM is usable as stand-alone platform with default I2C register settings. The EVM runs in default I2C
register settings, without the need of initialization The EVM can also work with the Purepath™ Console
(PPC3) graphical user interface plug-in for programming the I2C register settings.
2 Settings Via I2C
The default values in the I2C registers may not be appropriate for your system design. Use the PPC3 user
interface to change the register settings to meet the system needs.
2.1 TAS5431-Q1 Gain
The gain setting for the device is I2C programmable. The four gain options are 20 dB, 26 dB, 32 dB, and
36 dB. Set the gain by modifying I2C control register 0x03. By default, the gain is 26 dB.
2.2 TAS5431-Q1PWM Switching Frequencies
The PWM switching frequency is I2C programmable. The two f(SW) options are 400 kHz and 500 kHz.
Programming the frequency in control register 0x03 is via the GUI. By default, f(SW) is 400 kHz.
2.3 TAS5431-Q1SpeakerGuard™ Protection Circuitry
The SpeakerGuard™ protection circuitry is programmable for different voltage levels. Programming the
levels in control register 0x03 via the PPC3 GUI. The control register shows the default value for the
SpeakerGuard protection-circuitry voltage level.
Table 1. Control Register
D7 D6 D5 D4 D3 D2 D1 D0 Function
0 1 1 1 1 0 0 0 26dB gain, f(sw) set to 400 kHz, SpeakerGuard protection circuitry is set to maximum
voltage
- - - - - - - 1 f(sw) set to 500 kHz
- - - - - 1 1 - RESERVED
- - 1 1 0 - - - SpeakerGuard protection circuitry is set to 14 Vpeak output
- - 1 0 1 - - - SpeakerGuard protection circuitry is set to 11.8 Vpeak output
- - 1 0 0 - - - SpeakerGuard protection circuitry is set to 9.8 Vpeak output
- - 0 1 1 - - - SpeakerGuard protection circuitry is set to 8.4 Vpeak output
- - 0 1 0 - - - SpeakerGuard protection circuitry is set to 7V peak output
- - 0 0 1 - - - SpeakerGuard protection circuitry is set to 5.9 Vpeak output
- - 0 0 1 - - - SpeakerGuard protection circuitry is set to 5 Vpeak output
0 0 - - - - - - Set Gain to 20 dB
0 1 - - - - - - Set Gain to 32 dB
1 1 - - - - - - Set Gain to 36 dB

TAS5431Q1 EVM Setup www.ti.com
4SLOU529A–April 2020–Revised June 2020
Submit Documentation Feedback
Copyright © 2020, Texas Instruments Incorporated
TAS5431-Q1EVM User's Guide
3 TAS5431Q1 EVM Setup
Hardware requirements
• Computer running Windows 7, 8, or 10
• Power supply: 5–18 VDC
• Speakers and cable (not-provided)
• USB cable (not-provided)
• Audio source: Differential audio source preferred, single ended input can be used.
4 Software Overview
4.1 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 install file. After login, the
user will see a webpage with a list of software products available for download. Access the PurePath
Console software and download it. Run the install program. Also, download the PPC3 User Manual
(SLOU408). After signing into the PPC3, the user will see the Home Window, similar to the one shown in
Figure 2
The proper plug-in needs to be installed. Click on the TAS5431 and TAS5441 box. The installation window
pops up, then click "Install". It shows that it is loading.
Figure 2. PPC3 Window

www.ti.com Software Overview
5
SLOU529A–April 2020–Revised June 2020
Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated
TAS5431-Q1EVM User's Guide
The TAS5431 and TAS5441 box moves to the Installed Apps section. Click on the box and the plugin
loads.
Figure 3. Installing the Plug-in or App

Software Overview www.ti.com
6SLOU529A–April 2020–Revised June 2020
Submit Documentation Feedback
Copyright © 2020, Texas Instruments Incorporated
TAS5431-Q1EVM User's Guide
4.2 Using the PPC3 Plugin
When the TAS5431 and TAS5441 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 displays “Connect” box in the bottom left hand
corner. If the EVM is not powered on or the USB is not connected, only “TAS5431 and TAS5441 – Offline”
is displayed.
Figure 4. Home Window

www.ti.com Software Overview
7
SLOU529A–April 2020–Revised June 2020
Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated
TAS5431-Q1EVM User's Guide
There are two windows available with the TAS5431 and TAS5441 PPC3 Home Window: Register Map
Window and Device Monitor and Control Window.
The Register Map window will indicate the current settings off all the registers in the TAS5431-Q1. The left
pane show the individual registers. The right pane shows the description of each bit in the chosen register.
The control register values can be changed from this window.
Figure 5. Register Map Window

TAS5431Q1EVM Start Up www.ti.com
8SLOU529A–April 2020–Revised June 2020
Submit Documentation Feedback
Copyright © 2020, Texas Instruments Incorporated
TAS5431-Q1EVM User's Guide
Click on the Device Monitor and Control Box on the Home Window to display the Device Monitor and
Control Window. This window is a graphical representation of the register map. The "Controls" panes can
be changed and the other panes indicated the values in the registers. The Latch and Live toggle buttons
will allow for the Output Status, Protection and Load Diagnostics to be static (Latch) or dynamic (Live). In
Live mode the I2C registers are being read continuously to refresh the panes.
Figure 6. Device Monitor and Control Window
5 TAS5431Q1EVM Start Up
This section describes the start-up procedure. Have the equipment and accessories listed on the first
page of this document available.
5.1 TAS5431Q1EVM Setup
Hardware and software connections:
• Desk top or laptop PC running Windows . Open PPC3 GUI.
• Connect 14.4 VDC PSU to TAS5431-Q1 EVM
• Connect speakers or resistive loads to TAS5431-Q1 EVM
• Connect USB micro cable from PC to the EVM
• Set the switches (STANDBY, MUTE) to normal positions
• Turn on the PSU
• Audio source:
• At this point, 3.3 V LED, and USB-LOCK LED are on.
• On the PPC3 window, launch TAS5441 and TAS5431 plugin
• The audio can be streamed now to the speakers.

www.ti.com Board Layouts, Bill of Materials, and Schematics
9
SLOU529A–April 2020–Revised June 2020
Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated
TAS5431-Q1EVM User's Guide
6 Board Layouts, Bill of Materials, and Schematics
6.1 TAS5431Q1EVM Layouts
Figure 7. Top Side

Board Layouts, Bill of Materials, and Schematics www.ti.com
10 SLOU529A–April 2020–Revised June 2020
Submit Documentation Feedback
Copyright © 2020, Texas Instruments Incorporated
TAS5431-Q1EVM User's Guide
Figure 8. Bottom Side

GND
47.0k
R22
GND
1.0V
0.1uF
16V
C24
GND
1.0V
0.1uF
16V
C23
GND
1.0V
0.1uF
16V
C15
GND
1.0V
0.1uF
16V
C16
GND
1.0V
0.1uF
16V
C17
GND
1.0V
0.1uF
16V
C18
GND
1.0V
0.1uF
16V
C19
GND
1.0V
0.1uF
16V
C20
GND
1.0V
0.1uF
16V
C21
GND
1.0V
0.1uF
16V
C22
GND
1.0V
0.1uF
16V
C25
GND
1.0V
0.1uF
16V
C26
GND
1.0V
0.1uF
16V
C27
GND
1.0V
0.1uF
16V
C28
3.3V
SN74LVC2G07DSFR
1A
1
GND
2
2A
32Y 4
VCC 5
1Y 6
U4
3.3V
VDDIOL
6
VDD 11
VDDIOL
14
VDD 16
VDD 17
VDDIOL
19
VDD 24
VDDIOL
29
VDD 36
VDD 41
VDDIOL
42
VDDIOR
52
VDD 56
VDD 60
NC
65
VDDIOR
67
VDD 73
VDDIOR
78
VDD 80
VDD 81
VDDIOR
83
VDD 87
VDDIOR
92
VDD 101
VDD 102
PLL_AVDD 103
PLL_AGND 104
OTP_VCC
105
VDDIOT
110
VDDIOT
111
VDD 120
USB_VDD33
44
USB_VDD 49
NC
50
VDD 126
PAD 129
U1E
XE216-512
3.3V 1.0V
1.0V
4.75
R8
0.1uF
16V
C29
GND
X0D36 3
X0D37 4
X0D38 5
X0D39 7
X0D40 8
X0D41 9
X0D42 10
X0D43 12
X0D01 27
X0D10 28
X0D00 30
X0D04 31
X0D11 32
X0D05 33
X0D06 34
X0D07 35
X0D02 37
X0D03 38
X0D08 39
X0D09 40
X0D14 57
X0D15 58
X0D20 59
X0D21 61
X0D12 62
X0D13 63
X0D22 64
X0D23 66
X0D16 68
X0D17 69
X0D18 70
X0D19 71
X0D24 88
X0D25 89
X0D34 90
X0D35 91
X0D26 93
X0D27 94
X0D32 95
X0D28 96
X0D33 97
X0D29 98
X0D30 99
X0D31 100
U1A
XE216-512
1.00k
R1
GND
0.1uF
16V
C11
3.3V
GND
0.1uF
16V
C12
3.3V
GND
3.3V
GND
0.1uF
16V
C7
3.3V
GND
0.1uF
16V
C1
3.3V
GND
0.1uF
16V
C8
3.3V
GND
0.1uF
16V
C9
3.3V
GND
0.1uF
16V
C5
3.3V
GND
0.1uF
16V
C6
3.3V
GND
0.1uF
16V
C4
3.3V
GND
0.1uF
16V
C3
3.3V
GND
0.1uF
16V
C2
3.3V
GND
0.1uF
16V
C10
3.3V
SCL
SDA
USB_D_P
USB_D_M
USB_ID
VBUS_IN
X1D35 13
X1D36 15
X1D37 18
X1D38 20
X1D18 25
X1D19 26
X1D14 51
X1D15 53
X1D20 54
X1D21 55
X1D02 72
X1D03 74
X1D04 75
X1D05 76
X1D06 77
X1D07 79
X1D08 82
X1D09 84
X1D00 85
X1D01 86
X1D41 107
X1D42 108
X1D43 109
X1D40 106
X1D26 112
X1D27 113
X1D28 114
X1D29 115
X1D30 116
X1D31 117
X1D32 118
X1D33 119
X1D39 21
X1D16 22
X1D17 23
X1D10 121
X1D11 122
U1B
XE216-512
3.3V
25.5k
R18
1.0V
51.0k
R21
10.0k
R19
3.3V
470pF
25V
C34
GND
GND
GND
10.0k
R14
10.0k
R15
X-24M
2.2uF
10V
C33
GND USB I/O
GND-USB
USB_ID
43 USB_VBUS
45
USB_DP
46
USB_DM
47
USB_RTUNE
48
U1C
XE216-512
43.2
R13
0.1uF
16V
C30
GND
GND
X-TCK
X-TMS
X-TDO
X-TDI
X-TRSTN X-RSTN
TRST
123
RST
124 CLK
125
TMS
127 TCK
128
TDO
1TDI
2
U1D
XE216-512
X-24M
X-TCK
X-TMS
X-TDO
X-TDI
X-RSTN
TRST
XMOS AND I/Os
0
R12
JTAG CLOCK GENERATION
GND
0.1uF
16V
C35
3.3V
GND
0.1uF
16V
C32
3.3V
1
2
3
4
5
6
J1
JTAG
GND X-TDI
X-TMS
X-TCK
X-TDO
X-TRSTN
VBUS-XMOS
GND
24MHz
VDD 4
OE/STANDBY 1 GND
2
OUT
3
Y1
3.3V
GND
33.2
R17
680
R10
3.3V
X-HS-EN
GND
3.3V
SN74AVC2T244DQMR
VCCA
1
A1
2
A2
3
GND 5
B2 6
B1 7
OE
4
VCCB 8
U3
GND GND
3.3V
X-MCLK
33.2
R16
X-SCL
X-SDA
GND
X-MCLK
X-MCLK
XIN/CLK
GND
0.1uF
16V
C36
3.3V
GND
0.1uF
16V
C37
3.3V
GND
0.1uF
16V
C38
GND
0.1uF
16V
C39
TPS3897ADRYR
ENABLE
1
GND 2
SENSE
3SENSE_OUT 4
CT 5
VCC
6
U5
X-24M
10.0kR11
GND
FB1
10.0k
R9
XIN/CLK
1
S0
2
VDD
3
VCTR
4
GND 5
VDDOUT 6
VDDOUT 7
Y3 8
Y2 9
GND 10
Y1 11
SCL/S2
12 SDA/S1
13
XOUT
14
CDCE913PWR
U2
Blue
D3
USB READY
VBUS 1
D- 2
D+ 3
ID 4
GND 5
6
7
8
11 10
9
J3
10.0k
R20
3.3V
3.3V
3.3V
GND
0.1uF
16V
C14
3.3V
X-SPI-SS0
X-SPI-SS1
X-SPI-SS2
X-SPI-SS3
47.0k
R4
3.3V
47.0k
R5
3.3V
47.0k
R6
3.3V
47.0k
R7
3.3V
I2C
1.8V
1.8V
0R2X-SCL
X-SDA 0R3
X-SCL
X-SDA
1.8V 1.8V
MCLK-CDC
www.ti.com Board Layouts, Bill of Materials, and Schematics
11
SLOU529A–April 2020–Revised June 2020
Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated
TAS5431-Q1EVM User's Guide
6.2 TAS5431Q1Schematics
Figure 9. Schematic XMOS Control

499
R30
4.70k
R25
4.70k
R26
0.22uF
C50
0.22uF
C46
2
1
3
S1
STANDBY
GND
GND
GND
IN+
IN- 5.6
R27
5.6
R28
GND
GND
GND
OUT-
OUT+
470pF
C49
470pF
C51
GND
Red
D1
FAULT
3.3V
3.3V 3.3V
3.3V
22µH
2
14
3
L1
49.9k
R23
49.9k
R24
SCL
SDA
I2C
GND GND
OUT+
OUT-
GND
VIN
IN_P
IN_N
SCL
SDA
STANDBY
MUTE
FAULT
BSTP
OUTP
OUTN
BSTN
5
4
1
2
3
6
7
J2
4.70k
R29
3.3V
1µF
C42
1µF
C47
IN+
IN-
2
1
3
S2
MUTE 4.70k
R31
PVDD
15
IN_N
7IN_P
6
FAULT
14
STANDBY
2
BSTN 10
BSTP 13
BYP
3
MUTE
8
OUTN 11
OUTP 12
SCL
5SDA
4
Thermal_Pad 17
GND 1
GND 9
GND 16
U6
TAS5431QPWPRQ1
PVDD
GND GND
10uF
C45
GND
330uF
C43
GND
10nF
50V
C40
0.01uF
C41
0.1uF
C44
3.3µF
C48
3.3µF
C53
1µF
C52
Board Layouts, Bill of Materials, and Schematics www.ti.com
12 SLOU529A–April 2020–Revised June 2020
Submit Documentation Feedback
Copyright © 2020, Texas Instruments Incorporated
TAS5431-Q1EVM User's Guide
Figure 10. Schematic Power Amplifier

4.7uF
C54
4.7uF
C55
0.082uF
C56
2200pF
C57
GNDGNDGNDGND
GND
GND
0.1uF
C59
GND
3.3V
Green
D2
3.3V
3.3V
GND
499
R32
0.1uF
C58
L2
3.3V to 1.8V LDO
0.01uF
6.3V
C31
1.8V
1uF
6.3V
C13
GND
GND GND
GND
10V
10uF
C64
TPS73618DBVR
IN
1
GND 2
EN
3NR/FB 4
OUT 5
U9
OUTPUT = 1.8V@400mA
3.3V to 1V BUCK LDO for XMOS
OUTPUT = 1.0V@1A
1.0V
GND
GND
GND GND
50V
0.1uF
C63
10V
22uF
C61
GND
10V
22uF
C62
2.2uH
L3
GND
10V
22uF
C60
66.5k
R33
100k
R34
EN
1
GND 2
SW 3 VIN
4
FB 5
TLV62568DBVR
U8
SW
3.3V
3.3V
VIN
INPUT
1
COMMON 2
OUTPUT 3
COMMON 4
UA78M33CDCYR
U7
PVDD
www.ti.com Board Layouts, Bill of Materials, and Schematics
13
SLOU529A–April 2020–Revised June 2020
Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated
TAS5431-Q1EVM User's Guide
Figure 11. Schematic Power Supplies

Board Layouts, Bill of Materials, and Schematics www.ti.com
14 SLOU529A–April 2020–Revised June 2020
Submit Documentation Feedback
Copyright © 2020, Texas Instruments Incorporated
TAS5431-Q1EVM User's Guide
6.3 Bill of Materials
Table 2. Bill of Materials
Designator Qty Value Description Package Reference Part Number Manufacturer
!PCB1 1 Printed Circuit Board AMPS091
C1, C2, C3, C4, C5, C6,
C7, C8, C9, C10, C11,
C12, C14, C15, C16,
C17, C18, C19, C20,
C21, C22, C23, C24,
C25, C26, C27, C28,
C29, C30, C32, C35,
C36, C37, C38, C39
35 0.1uF CAP, CERM, 0.1 uF, 16 V, +/- 10%, X7R, 0402 0402 GRM155R71C104KA88D MuRata
C13 1 1uF CAP, CERM, 1 uF, 6.3 V, +/- 20%, X7R, 0402 0402 GRM155R70J105MA12D MuRata
C31 1 0.01uF CAP, CERM, 0.01 uF, 6.3 V, +/- 10%, X7R, 0402 0402 GRM155R70J103KA01D MuRata
C33 1 2.2uF CAP, CERM, 2.2 uF, 10 V, +/- 10%, X7R, 0603 0603 GRM188R71A225KE15D MuRata
C34 1 470pF CAP, CERM, 470 pF, 25 V, +/- 5%, C0G/NP0, 0402 0402 GRM1555C1E471JA01D MuRata
C40, C41 2 0.01uF CAP, CERM, 0.01 uF, 25 V, +/- 10%, X7R, 0603 0603 CL10B103KA8WPNC Samsung Electro-
Mechanics
C42, C47 2 1uF CAP, CERM, 1 uF, 35 V, +/- 10%, X7R, AEC-Q200 Grade 1,
0603 0603 CGA3E1X7R1V105K080AC TDK
C43 1 330uF CAP, AL, 330 uF, 25 V, +/- 20%, 0.075 ohm, TH CAP, 10x16mm UBT1E331MPD1TD Nichicon
C44, C58, C59 3 0.1uF CAP, CERM, 0.1 uF, 25 V, +/- 10%, X7R, 0603 0603 GCJ188R71E104KA12D MuRata
C45 1 10uF CAP, CERM, 10 uF, 25 V, +/- 10%, X7R, 1206 1206 GRM31CR71E106KA12L MuRata
C46, C50 2 0.22uF CAP, CERM, 0.22 uF, 25 V, +/- 10%, X7R, 0603 0603 GRM188R71E224KA88D MuRata
C48, C53 2 3.3uF CAP, CERM, 3.3 uF, 25 V, +/- 10%, X7R, 0805 0805 C2012X7R1E335K125AB TDK
C49, C51 2 470pF CAP, CERM, 470 pF, 250 V, +/- 10%, X7R, 0603 0603 GRM188R72E471KW07D MuRata
C52 1 1uF CAP, CERM, 1 uF, 25 V, +/- 10%, X7R, 0805 0805 GCM21BR71E105KA56K MuRata
C54, C55 2 4.7uF CAP, CERM, 4.7 uF, 25 V, +/- 10%, X7R, 1206 1206 GCJ31CR71E475KA12L MuRata
C56 1 0.082u
FCAP, CERM, 0.082 uF, 25 V, +/- 10%, X7R, 0603 0603 C0603C823K3RACTU Kemet
C57 1 2200pF CAP, CERM, 2200 pF, 50 V, +/- 10%, X7R, 0603 0603 GCJ188R71H222KA01D Murata
C60, C61, C62 3 22uF CAP, CERM, 22 uF, 10 V, +/- 20%, X5R, 0603 0603 C1608X5R1A226M080AC TDK
C63 1 0.1uF CAP, CERM, 0.1 uF, 50 V, +/- 10%, X7R, 0402 0402 C1005X7R1H104K050BB TDK
C64 1 10uF CAP, CERM, 10 uF, 10 V, +/- 20%, X5R, 0603 0603 C1608X5R1A106M080AC TDK
D1 1 Red LED, Red, SMD Red LED, 1.6x0.8x0.8mm LTST-C190CKT Lite-On
D2 1 Green LED, Green, SMD 0805 LED LTST-C171GKT Lite-On
D3 1 Blue LED, Blue, SMD LED_0603 150060BS75000 Wurth Elektronik

www.ti.com Board Layouts, Bill of Materials, and Schematics
15
SLOU529A–April 2020–Revised June 2020
Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated
TAS5431-Q1EVM User's Guide
Table 2. Bill of Materials (continued)
Designator Qty Value Description Package Reference Part Number Manufacturer
FB1 1 600
ohm Ferrite Bead, 600 ohm @ 100 MHz, 2 A, 0805 0805 MPZ2012S601AT000 TDK
J1 1 Receptacle, 50mil, 6x1, Gold, R/A, TH 6x1 Receptacle LPPB061NGCN-RC Sullins Connector
Solutions
J2 1 Terminal Block, 3.5mm Pitch, 7x1, TH 24x.5x8.2x6.5mm ED555/7DS On-Shore
Technology
J3 1 Connector, Receptacle, Micro-USB Type AB, R/A, Bottom Mount
SMT Connector, USB Micro AB DX4R205JJAR1800 JAE Electronics
L1 1 22uH Coupled inductor, 22 µH, 3 A, 69 ohm, SMD SMD, 8x9x8mm DBL8087H-220M Sagami Elec Co
Ltd
L2 1 10uH Inductor, Shielded E Core, Ferrite, 10 µH, 7.2 A, 0.01081 ohm,
AEC-Q200 Grade 3, SMD SER1360 SER1360-103KLB Coilcraft
L3 1 2.2uH Inductor, Multilayer, Ferrite, 2.2 uH, 1.3 A, 0.08 ohm, SMD SMD, Body 2.5x2mm,
Height 1.2mm LQM2HPN2R2MG0L MuRata
R1 1 1.00k RES, 1.00 k, 1%, 0.0625 W, 0402 0402 RC0402FR-071KL Yageo America
R2, R3 2 0 RES, 0, 5%, 0.063 W, 0402 0402 RC0402JR-070RL Yageo America
R4, R5, R6, R7, R22 5 47.0k RES, 47.0 k, 1%, 0.0625 W, 0402 0402 RC0402FR-0747KL Yageo America
R8 1 4.75k RES, 4.75, 1%, 0.1 W, 0603 0603 RC0603FR-074R75L Yageo America
R9, R11 2 10.0k RES, 10.0 k, 1%, 0.1 W, 0402 0402 ERJ-2RKF1002X Panasonic
R10 1 680 RES, 680, 1%, 0.1 W, 0603 0603 RC0603FR-07680RL Yageo America
R12 1 0 RES, 0, 5%, 0.05 W, AEC-Q200 Grade 1, 0201 0201 ERJ-1GE0R00C Panasonic
R13 1 43.2 RES, 43.2, 1%, 0.1 W, 0603 0603 RC0603FR-0743R2L Yageo America
R14, R15, R19, R20 4 10.0k RES, 10.0 k, 1%, 0.05 W, 0201 0201 RC0201FR-0710KL Yageo America
R16, R17 2 33.2 RES, 33.2, 1%, 0.05 W, 0201 0201 RC0201FR-0733R2L Yageo America
R18 1 25.5k RES, 25.5 k, 1%, 0.05 W, 0201 0201 RC0201FR-0725K5L Yageo America
R21 1 51.0k RES, 51.0 k, 1%, 0.05 W, 0201 0201 RC0201FR-0751KL Yageo America
R23, R24 2 49.9k RES, 49.9 k, 1%, 0.125 W, AEC-Q200 Grade 0, 0805 0805 CRCW080549K9FKEA Vishay-Dale
R25, R26, R29, R31 4 4.70k RES, 4.70 k, 1%, 0.1 W, 0603 0603 RC0603FR-074K7L Yageo America
R27, R28 2 5.6 RES, 5.6, 5%, 0.125 W, AEC-Q200 Grade 0, 0805 0805 CRCW08055R60JNEA Vishay-Dale
R30, R32 2 499 RES, 499, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 CRCW0603499RFKEA Vishay-Dale
R33 1 66.5k RES, 66.5 k, 1%, 0.1 W, 0603 0603 RC0603FR-0766K5L Yageo America
R34 1 100k RES, 100 k, 1%, 0.1 W, 0603 0603 RC0603FR-07100KL Yageo America
S1, S2 2 SWITCH TOGGLE SPDT 0.4VA 28V 6.8x23.1x8.8mm B12AP NKK Switches
U1 1 IC MCU 512KB RAM, 128TQFP TQFP-128 XEF216-512-TQ128-C20 XMOS
semiconductor

Board Layouts, Bill of Materials, and Schematics www.ti.com
16 SLOU529A–April 2020–Revised June 2020
Submit Documentation Feedback
Copyright © 2020, Texas Instruments Incorporated
TAS5431-Q1EVM User's Guide
Table 2. Bill of Materials (continued)
Designator Qty Value Description Package Reference Part Number Manufacturer
U2 1 Programmable 1-PLL VCXO Clock Synthesizer with 2.5-V or
3.3-V LVCMOS Outputs, PW0014A (TSSOP-14) PW0014A CDCE913PWR Texas Instruments
U3 1 Dual-Bit Dual-Supply Bus Transceiver, DQM0008A (X2SON-8) DQM0008A SN74AVC2T244DQMR Texas Instruments
U4 1 Enhanced Product Dual Buffer/Driver with Open-Drain Output,
DCK0006A (SOT-SC70-6) DSF0006A SN74LVC2G07DSFR Texas Instruments
U5 1 Single-Channel Ultra-Small Adjustable Supervisory Circuit With
Active-High Open-Drain Output, DRY0006A (USON-6) DRY0006A TPS3897ADRYR Texas Instruments
U6 1 11-W Mono Automotive Digital-audio Amplifier with Load Dump
and I2C Diagnostics HTSSOP16 TAS5431-Q1 Texas Instruments
U7 1 500-mA, 25-V, Linear Voltage Regulators, DCY0004A (SOT-
223-4) DCY0004A UA78M33CDCYR Texas Instruments
U8 1 1-A High Efficiency Step-Down Converter in SOT23-5 Package,
DBV005A, DBV0005A (SOT-5) DBV0005A TLV62568DBVR Texas Instruments
U9 1 Single Output LDO, 400mA, Adj.(1.2 to 5.5V), Cap free, Low
Noise, Reverse Current Protection, DBV0005A (SOT-23-5) DBV0005A TPS73618DBVR Texas Instruments
Y1 1 OSC, 24 MHz, 2.25 - 3.63 V, SMD 2x1.6mm ASTMLPA-24.000MHZ-EJ-E-
TAbracon Corporation

www.ti.com Revision History
17
SLOU529A–April 2020–Revised June 2020
Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated
Revision History
Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (April 2020) to A Revision .......................................................................................................... Page
• Changed the document From: Advanced Information To: Production data ...................................................... 1

STANDARD TERMS FOR EVALUATION MODULES
1. Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or
documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance
with the terms set forth herein. User's acceptance of the EVM is expressly subject to the following terms.
1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility
evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not
finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For
clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions
set forth herein but rather shall be subject to the applicable terms that accompany such Software
1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned,
or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production
system.
2Limited Warranty and Related Remedies/Disclaimers:
2.1 These terms do not apply to Software. The warranty, if any, for Software is covered in the applicable Software License
Agreement.
2.2 TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM
to User. Notwithstanding the foregoing, TI shall not be liable for a nonconforming EVM if (a) the nonconformity was caused by
neglect, misuse or mistreatment by an entity other than TI, including improper installation or testing, or for any EVMs that have
been altered or modified in any way by an entity other than TI, (b) the nonconformity resulted from User's design, specifications
or instructions for such EVMs or improper system design, or (c) User has not paid on time. Testing and other quality control
techniques are used to the extent TI deems necessary. TI does not test all parameters of each EVM.
User's claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects in the EVMs within ten (10)
business days after delivery, or of any hidden defects with ten (10) business days after the defect has been detected.
2.3 TI's sole liability shall be at its option to repair or replace EVMs that fail to conform to the warranty set forth above, or credit
User's account for such EVM. TI's liability under this warranty shall be limited to EVMs that are returned during the warranty
period to the address designated by TI and that are determined by TI not to conform to such warranty. If TI elects to repair or
replace such EVM, TI shall have a reasonable time to repair such EVM or provide replacements. Repaired EVMs shall be
warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day
warranty period.
WARNING
Evaluation Kits are intended solely for use by technically qualified,
professional electronics experts who are familiar with the dangers
and application risks associated with handling electrical mechanical
components, systems, and subsystems.
User shall operate the Evaluation Kit within TI’s recommended
guidelines and any applicable legal or environmental requirements
as well as reasonable and customary safeguards. Failure to set up
and/or operate the Evaluation Kit within TI’s recommended
guidelines may result in personal injury or death or property
damage. Proper set up entails following TI’s instructions for
electrical ratings of interface circuits such as input, output and
electrical loads.
NOTE:
EXPOSURE TO ELECTROSTATIC DISCHARGE (ESD) MAY CAUSE DEGREDATION OR FAILURE OF THE EVALUATION
KIT; TI RECOMMENDS STORAGE OF THE EVALUATION KIT IN A PROTECTIVE ESD BAG.

www.ti.com
2
3Regulatory Notices:
3.1 United States
3.1.1 Notice applicable to EVMs not FCC-Approved:
FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software
associated with the kit to determine whether to incorporate such items in a finished product and software developers to write
software applications for use with the end product. This kit is not a finished product and when assembled may not be resold or
otherwise marketed unless all required FCC equipment authorizations are first obtained. Operation is subject to the condition
that this product not cause harmful interference to licensed radio stations and that this product accept harmful interference.
Unless the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must
operate under the authority of an FCC license holder or must secure an experimental authorization under part 5 of this chapter.
3.1.2 For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant:
CAUTION
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to
operate the equipment.
FCC Interference Statement for Class A EVM devices
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to
correct the interference at his own expense.
FCC Interference Statement for Class B EVM devices
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more
of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
3.2 Canada
3.2.1 For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210 or RSS-247
Concerning EVMs Including Radio Transmitters:
This device complies with Industry Canada license-exempt RSSs. Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this device must accept any interference, including interference that may
cause undesired operation of the device.
Concernant les EVMs avec appareils radio:
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation
est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit
accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
Concerning EVMs Including Detachable Antennas:
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser)
gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type
and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for
successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types
listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated.
Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited
for use with this device.

www.ti.com
3
Concernant les EVMs avec antennes détachables
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et
d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage
radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope
rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Le
présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le
manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne
non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de
l'émetteur
3.3 Japan
3.3.1 Notice for EVMs delivered in Japan: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page 日本国内に
輸入される評価用キット、ボードについては、次のところをご覧ください。
http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page
3.3.2 Notice for Users of EVMs Considered “Radio Frequency Products” in Japan: EVMs entering Japan may not be certified
by TI as conforming to Technical Regulations of Radio Law of Japan.
If User uses EVMs in Japan, not certified to Technical Regulations of Radio Law of Japan, User is required to follow the
instructions set forth by Radio Law of Japan, which includes, but is not limited to, the instructions below with respect to EVMs
(which for the avoidance of doubt are stated strictly for convenience and should be verified by User):
1. Use EVMs in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal
Affairs and Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for
Enforcement of Radio Law of Japan,
2. Use EVMs only after User obtains the license of Test Radio Station as provided in Radio Law of Japan with respect to
EVMs, or
3. Use of EVMs only after User obtains the Technical Regulations Conformity Certification as provided in Radio Law of Japan
with respect to EVMs. Also, do not transfer EVMs, unless User gives the same notice above to the transferee. Please note
that if User does not follow the instructions above, User will be subject to penalties of Radio Law of Japan.
【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて
いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの
措置を取っていただく必要がありますのでご注意ください。
1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用
いただく。
2. 実験局の免許を取得後ご使用いただく。
3. 技術基準適合証明を取得後ご使用いただく。
なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。
上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ
ンスツルメンツ株式会社
東京都新宿区西新宿６丁目２４番１号
西新宿三井ビル
3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page
電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧ください。http:/
/www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page
3.4 European Union
3.4.1 For EVMs subject to EU Directive 2014/30/EU (Electromagnetic Compatibility Directive):
This is a class A product intended for use in environments other than domestic environments that are connected to a
low-voltage power-supply network that supplies buildings used for domestic purposes. In a domestic environment this
product may cause radio interference in which case the user may be required to take adequate measures.