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Table of Contents
User's Guide
AFE881H1 Evaluation Module
ABSTRACT
This user's guide describes the characteristics, operation, and recommended use cases of the AFE881H1EVM.
This document provides examples and instructions on how to use the AFE881H1EVM board and included
software. Throughout this document, the terms evaluation board, evaluation module, and EVM are synonymous
with the AFE881H1EVM. This document also includes a schematic, reference printed circuit board (PCB)
layouts, and a complete bill of materials (BOM).
Table of Contents
1 Overview..................................................................................................................................................................................3
1.1 Kit Contents........................................................................................................................................................................3
1.2 Related Documentation From Texas Instruments.............................................................................................................. 3
2 USB2ANY Interface Adapter.................................................................................................................................................. 4
2.1 Signal Definitions for J10................................................................................................................................................... 4
2.2 USB2ANY Theory of Operation......................................................................................................................................... 5
3 EVM Hardware Overview........................................................................................................................................................6
3.1 Electrostatic Discharge Caution......................................................................................................................................... 6
3.2 EVM Block Diagram........................................................................................................................................................... 6
3.3 EVM Jumper Summary...................................................................................................................................................... 7
3.4 Terminal and Pin Definitions...............................................................................................................................................8
3.5 Connecting the USB2ANY................................................................................................................................................. 9
3.6 Connecting the USB Cable to the USB2ANY Interface Adapter......................................................................................10
3.7 Optional EVM Operations................................................................................................................................................ 10
4 Software Overview................................................................................................................................................................ 11
4.1 Software Installation......................................................................................................................................................... 11
4.2 Launching the Software................................................................................................................................................... 12
4.3 Software Features............................................................................................................................................................13
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Trademarks
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5 Schematics, PCB Layout, and Bill of Materials................................................................................................................. 16
5.1 Board Schematic..............................................................................................................................................................16
5.2 PCB Components Layout.................................................................................................................................................17
5.3 Bill of Materials.................................................................................................................................................................19
6 Revision History................................................................................................................................................................... 21
List of Figures
Figure 2-1. AFE881H1EVM Hardware Setup.............................................................................................................................. 4
Figure 2-2. USB2ANY Interface Adapter Block Diagram.............................................................................................................5
Figure 3-1. AFE881H1EVM Block Diagram.................................................................................................................................6
Figure 3-2. Default Header Settings for the AFE881H1EVM.......................................................................................................7
Figure 3-3. Terminal and Pin Locations for the AFE881H1EVM..................................................................................................9
Figure 3-4. USB2ANY Connection to the AFE881H1EVM.......................................................................................................... 9
Figure 3-5. Confirmation of USB2ANY Driver Installation......................................................................................................... 10
Figure 4-1. AFE881H1EVM Software Installation Prompts........................................................................................................11
Figure 4-2. Launching the AFE881H1EVM GUI........................................................................................................................ 12
Figure 4-3. AFE881H1EVM GUI at Launch...............................................................................................................................12
Figure 4-4. USB2ANY Digital Controller Connection Status......................................................................................................12
Figure 4-5. AFE881H1 Register Page....................................................................................................................................... 13
Figure 4-6. AFE881H1 High Level Tab...................................................................................................................................... 14
Figure 4-7. Launch Script Window.............................................................................................................................................14
Figure 4-8. Scripting Tool Recording a Macro........................................................................................................................... 15
Figure 4-9. Deselecting App Execution Aliases.........................................................................................................................15
Figure 5-1. AFE881H1EVM Schematic..................................................................................................................................... 16
Figure 5-2. AFE881H1EVM PCB Top Layer Layout.................................................................................................................. 17
Figure 5-3. AFE881H1EVM PCB Mid Layer 1 Layout............................................................................................................... 17
Figure 5-4. AFE881H1EVM PCB Mid Layer 2 Layout............................................................................................................... 18
Figure 5-5. AFE881H1EVM PCB Bottom Layer Layout............................................................................................................ 18
List of Tables
Table 1-1. AFE881H1EVM Kit Contents...................................................................................................................................... 3
Table 1-2. Related Documentation.............................................................................................................................................. 3
Table 2-1. USB2ANY Connector AFE881H1EVM (J10) Pinout...................................................................................................4
Table 3-1. AFE881H1EVM Jumper Summary............................................................................................................................. 7
Table 3-2. AFE881H1EVM Terminal and Pin Definitions............................................................................................................. 8
Table 5-1. Bill of Materials for the AFE881H1EVM.................................................................................................................... 19
Trademarks
LabVIEW™ is a trademark of National Instruments Corporation.
Python™ is a trademark of Python Software Foundation.
HART® is a registered trademark of FieldComm Group.
All trademarks are the property of their respective owners.
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Overview
1 Overview
The AFE881H1 16-bit digital-to-analog converter (DAC) is a highly-integrated, high-accuracy, and extremely lowpower device with voltage-outputs designed for HART® enabled sensor transmitter applications. The AFE881H1
includes most of the components required to construct a transmitter for 2-wire (loop-powered), 4-mA to 20mA sensor transmitter applications. These components include a 16-bit highly accurate DAC, a HART FSK
modem, an internal 10-ppm/°C voltage reference, and an internal diagnostic ADC. To accommodate intrinsic and
functional safety concerns, external voltage-to-current conversion and power-regulation are required.
1.1 Kit Contents
Table 1-1 details the contents of the EVM kit. Contact the TI Product Information Center at (972) 644-5580 if any
component is missing. Download the latest versions of the related software on the TI website, www.ti.com.
Table 1-1. AFE881H1EVM Kit Contents
Item
Quantity
AFE881H1EVM
1
Note
The EVM requires the USB2ANY digital controller. This controller is not included, and must be
purchased separately.
1.2 Related Documentation From Texas Instruments
The documents in Table 1-2 provides information regarding Texas Instruments integrated circuits used in the
assembly of the AFE881H1EVM. This user's guide is available from the TI web site under literature number
SLAU858. Any letter appended to the literature number corresponds to the document revision that is current
at the time of the writing of this document. When released, newer revisions are available from the TI web site
at www.ti.com, or call the Texas Instruments Literature Response Center at (800) 477-8924 or the Product
Information Center at (972) 644-5580. When ordering, identify the document by both title and literature number.
Table 1-2. Related Documentation
Document
Literature Number
AFE881H1 product data sheet
SLASEU7
USB2ANY interface adapter user's guide
SNAU228
REF3312 product data sheet
SBOS392
SN74LVC8T245 product data sheet
SCES584
SN74LVC2T45 product data sheet
SCES516
Download the latest version of the EVM graphical user interface (GUI) installer from the Order and start
development subsection of the AFE881H1EVM web folder on TI.com. Run the GUI installer to install the EVM
GUI software on your personal computer (PC).
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USB2ANY Interface Adapter
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2 USB2ANY Interface Adapter
The AFE881H1EVM is controlled by a USB2ANY Interface Adapter. A PC runs the software that communicates
with the USB2ANY, which provides the power and digital signals used to communicate with the EVM board.
Connectors on the EVM board are used to connect the required external power supply. Figure 2-1 shows a
diagram of the connections from the PC to the AFE881H1EVM.
External
Power Supply
(Optional)
Supply
Selection
30-Pin Ribbon
Cable
AFE881H1
GUI
A-to-Mini-B USB
Cable
USB2ANY
3.3 V / 5 V
GPIO
I2C / SPI
Digital
Control
AFE881H1
EVM
DAC
Output
HART
In / Out
ADC
Inputs
Figure 2-1. AFE881H1EVM Hardware Setup
2.1 Signal Definitions for J10
Table 2-1 shows the pinout for the 30-pin connector socket used to communicate between the EVM and the
USB2ANY. Be aware that the I2C communications lines (I2C_SCL and I2C_SDA1) are not used. Both the
connectors and cables from the USB2ANY to the AFE881H1EVM are keyed to make sure the cable is correctly
connected.
Table 2-1. USB2ANY Connector AFE881H1EVM (J10) Pinout
4
Pin on J10
Signal
4, 6, 8, 16, 27, 28
GND
11
ALARM
Definition
Ground
Alarm notification; open drain.
When an alarm occurs, this pin is held low. Otherwise, this pin goes to Hi-Z.
12
CS
13
MISO
SPI communication for AFE881H1 chip select
SPI communication for AFE881H1 digital output
14
MOSI
SPI communication for AFE881H1 digital input
15
3p3V
3.3-V supply voltage
17
CD
18
SCLK
SPI communication for AFE881H1 digital clock
19
GPIO1
GPIO1 (unused)
20
GPIO2
GPIO2 (unused)
25
RTS
26
UARTOUT
29
RESET
Reset.
A logic low on this pin places the device into power-down mode and resets the device.
Logic high returns the device to normal operation.
Do not leave any digital input pins floating.
30
UARTIN
UART data input. Do not leave any digital input pins floating.
1, 2, 3, 5, 7, 9, 10, 21,
22, 23, 24
NC
AFE881H1 Evaluation Module
Carrier detect. A logic high on this pin indicates a valid carrier is present.
Request to send.
A logic high on this pin enables the demodulator and disables the modulator.
A logic low on this pin enables the modulator and disables the demodulator.
Do not leave any digital input pins floating.
UART data output.
Not connected
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USB2ANY Interface Adapter
2.2 USB2ANY Theory of Operation
Figure 2-2 shows the block diagram for the USB2ANY platform. This platform is a general-purpose dataacquisition system that is used on several different Texas Instruments evaluation modules. The details of
operation are included in the USB2ANY Interface Adapter User's Guide.
+3.3 V
Power Management
+5.0 V
DAC1
DAC2
GPIO, 12C, PWM,
and other interfaces
(shared lines)
MSP430F5529
(14)
Switchable
12C pullups
(4)
Analog Inputs
Ext. VREF
Figure 2-2. USB2ANY Interface Adapter Block Diagram
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EVM Hardware Overview
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3 EVM Hardware Overview
To use the EVM hardware, set the jumpers, connect the USB2ANY to the EVM together with the 30-pin ribbon
cable, apply external power (optional), and connect the USB cable from the USB2ANY to the PC. This section
presents the details of these procedures.
3.1 Electrostatic Discharge Caution
CAUTION
Many of the components on the AFE881H1EVM are susceptible to damage by electrostatic
discharge (ESD). Observe proper ESD handling precautions when unpacking and handling the
EVM, including the use of a grounded wrist strap at an approved ESD workstation.
3.2 EVM Block Diagram
A block diagram of the EVM hardware setup is shown in Figure 3-1. This board provides connections and test
points for the SPI and UART communication, power, reference, ground connections, ADC inputs, HART modem,
and the analog output of the DAC.
PVDD
Supply
(Optional)
3.3-V
Supply
USB2ANY
Connector
IOVDD
Supply
(Optional)
Selectable
REF3312
Reference
(Not populated)
PVDD/
IOVDD
HART
OUT
HART
IN
Bus
Transceiver/
Level Shifter
AFE881H1
HART
Filtering
SPI
Connections
UART, CD,
RTS, ALARM
Connections
CLKOUT
ADC
AIN0,
AIN1
VOUT
Figure 3-1. AFE881H1EVM Block Diagram
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EVM Hardware Overview
3.3 EVM Jumper Summary
Table 3-1 summarizes all of the EVM jumper functionality.
Table 3-1. AFE881H1EVM Jumper Summary
Header
Name
Function
J2
PVDD to IOVDD
J3
USB 3.3V
J5
Ext REF
J6
IOVDD Shunt
Short 1-2 – IOVDD connected to device (default)
Open 1-2 – IOVDD disconnected from device
J7
REF EN
Short 1-2 – REFEN connected to IOVDD (default)
Short 2-3 – REFEN connected to GND
J8
UARTIN
Short 1-2 – UART_IN connected to bus transceiver (default)
Open 1-2 – UART_IN disconnected from bus transceiver
J13
POL SEL
Short 1-2 – POL_SEL connected to PVDD through 100-kΩ resistor
Short 2-3 – POL_SEL connected to GND through 100-kΩ resistor (default)
J14
Resistor Load
J17
Cap Load
Short 1-2 – VOUT connected to 100-pF load
Open 1-2 – VOUT no capacitive load (default)
J19, J20
FILT SEL
Short 1-2 – HART IN pin external filter selected
Short 2-3 – HART IN pin internal filter selected
J23
Level Translator
Short 1-2 – PVDD connected to IOVDD
Open 1-2 – PVDD, IOVDD disconnected (default)
Short 1-2 – PVDD connected to USB2ANY 3p3V (default)
Open 1-2 – PVDD disconnected from USB2ANY 3p3V
Short 3-4 – IOVDD connected to USB2ANY 3p3V (default)
Open 3-4 – IOVDD disconnected from USB2ANY 3p3V
Short 1-2 – VREFIO connected to external reference
Open 1-2 – VREFIO disconnected from external reference (default)
Short 1-2 – VOUT connected to 10-kΩ load
Open 1-2 – VOUT no resistive load (default)
Short 1-2 – Bus transceiver OE connected to GND (default)
Short 2-3 – Bus transceiver OE connected to IOVDD
Figure 3-2 shows the default jumper settings with the device using USB power. The EVM can be fully operated
using only the USB2ANY connector for both power and communication.
Figure 3-2. Default Header Settings for the AFE881H1EVM
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3.4 Terminal and Pin Definitions
Table 3-2 shows the EVM terminal and pin definitions, allowing the user to operate and connect the device to
optional power settings and other input and output signals.
Table 3-2. AFE881H1EVM Terminal and Pin Definitions
Terminal or Pin
Name
J1
VDD
Function
Shunt 1-2: Connect VDD to PVDD for use when VDD = PVDD = 1.8 V
Open 1-2: Disconnects VDD when PVDD > 1.8 V
J2
PVDD
Banana Jack: Optional for external PVDD
J3
3p3V
Shunt 1-2: Connect PVDD to USB2ANY 3.3-V supply
Shunt 3-4: Connect IOVDD to USB2ANY 3.3-V supply
J4
GND
J5
VREFIO
Banana Jack: Optional for external GND
Shunt 1-2: Connect REF3312 to VREFIO for external reference
Open 1-2: Open for device internal reference
J6
IOVDD
Shunt 1-2: Connect IOVDD to power
J7
REF EN
Shunt 1-2: Enable device internal reference
Shunt 2-3: Disable device internal reference
J8
UARTIN
Shunt 1-2: Connect UARTIN to device from USB2ANY through voltage level shifter
J9
SPI Conn
Pin 1: RESET
Pin 3: SCLK
Pin 5: SDI
Pin 7: CS
Pin 9: SDO
Pin 2, 4, 6, 8, 10: GND
Ground connections are on the interior side of the board. Signals are on the edge side of the board.
J10
USB2ANY
30-pin ribbon cable connection, see Table 2-1
J11
ADC
Terminal 1: AIN0
Terminal 2: GND
Terminal 3: AIN1
J12
UART Conn
J13
POL_SEL
Pin 1: UART_IN
Pin 3: UART_OUT
Pin 5: RTS
Pin 7: CD
Pin 9: ALARM
Pin 2, 4, 6, 8, 10: GND
Ground connections are on the interior side of the board. Signals are on the edge side of the board.
Shunt 1-2: Pull up to PVDD
Shunt 2-3: Pull down to GND
Open: Connection to AIN1 terminal of J11
J14
RES_LOAD
J15
VOUT
Shunt 1-2: Connect 10-kΩ load to VOUT
Terminal 1: GND
Terminal 2: VOUT
J16
CLK_OUT
Pin 1: CLK_OUT
Pin 2: GND
J17
CAP_LOAD
Shunt 1-2: Connect 150-pF load to VOUT
J18
IOVDD
Banana Jack: Optional for external IOVDD
J19, J20
FILT_SEL
Shunt 1-2: HART IN terminal internal filter selected
Shunt 2-3: HART IN terminal external filter selected
J21
HART_IN
Terminal 1: GND
Terminal 2: HART input
J22
HART_OUT
Terminal 1: GND
Terminal 2: HART output
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EVM Hardware Overview
Figure 3-3 shows the terminal and pin locations on the EVM.
GND
PVDD
IOVDD
Power Terminals
(Optional)
VDD Connection
for low supplies
External
Reference
MOD OUT
IOVDD
Connect
Power from
USB2ANY
(Default)
RX Filter
RX_IN/
INF SEL
MOD IN
REF EN
USB2ANY
UARTIN
AFE881H1
SPI
UART
POL_SEL
AIN
CLKOUT Connections
VOUT Load
VOUT
Figure 3-3. Terminal and Pin Locations for the AFE881H1EVM
3.5 Connecting the USB2ANY
To connect the EVM board and the USB2ANY Interface Adapter together, firmly slide the cable ends of the
30-pin ribbon cable into the USB2ANY Interface Adapter and the AFE881H1EVM, as shown in Figure 3-4. Make
sure that the connectors are completely pushed together. Loose connections between the USB2ANY and the
EVM can cause intermittent operation.
USB2ANY
AFE881H1EVM
Figure 3-4. USB2ANY Connection to the AFE881H1EVM
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3.6 Connecting the USB Cable to the USB2ANY Interface Adapter
Figure 3-5 shows the typical response to connecting the USB2ANY Interface Adapter board to a USB port for
the first time. Typically, the PC responds with a Found New Hardware, USB Device pop-up dialog window. The
pop-up window then changes to Found New Hardware, USB Human Interface Device. This pop-up indicates that
the device is ready to be used. The USB2ANY Interface Adapter uses the human interface device drivers that
are included in the Windows® operating system (OS).
In some cases, the Add Hardware Wizard appears. If this prompt occurs, allow the system device manager to
install the human interface drivers by clicking Yes when requested to install drivers.
Figure 3-5. Confirmation of USB2ANY Driver Installation
CAUTION
The EVM default configuration does not require external power supplies, and power is sourced from
the USB2ANY. If external supplies are used, disconnect the supply connection from the 3p3V line
coming from the USB2ANY before attaching external supplies.
3.7 Optional EVM Operations
This section describes the various operational options that can be used by the EVM.
3.7.1 Power Configuration
The default configuration of the AFE881H1EVM allows the board to be powered from the 3p3V line coming from
the USB2ANY. Jumper J3 connects power from the 3p3V line to the PVDD and IOVDD pins of the device. To
use external power supplies, remove the jumpers in J3 to connect supplies to J1 and J4 for connections to
PVDD and IOVDD. When the external supply is 1.8 V, install R1 on the board; this resistor is not installed by
default. Provide the external 1.8-V supply to PVDD, VDD, and IOVDD through J1 and J4.
3.7.2 External SPI and UART Controllers
To use an external SPI or UART controller with EVM board, disconnect the USB2ANY controller, and disable the
U2 level shifter by uninstalling R13 and installing R2.
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Software Overview
4 Software Overview
This section discusses how to use the AFE881H1EVM software.
4.1 Software Installation
Before starting software installation, verify that the USB2ANY controller is not connected or else the driver may
not properly install.
Download and run the latest version of the EVM GUI installer from the Tools and Software section of the
AFE881H1EVM web folder to install the EVM GUI software on your PC. The software installation automatically
copies the required LabVIEW™ software files and drivers to the local machine. The AFE881H1EVM installer
installs all the driver files necessary to operate the USB2ANY controller.
Choose the destination directory for the GUI software, accept the license agreements, and follow the on-screen
instructions shown in Figure 4-1 to complete the installation.
Figure 4-1. AFE881H1EVM Software Installation Prompts
To use the scripting tool, the Python™ programming environment must also be installed. Download the latest x86
version of Python 2.7 at https://www.python.org/downloads/.
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4.2 Launching the Software
After installation, a shortcut to launch the GUI can be found in the Start menu. If installed in the default directory,
the AFE881H1EVM software can also be launched by navigating to the Texas Instruments folder in the Program
Files (x86) directory, as Figure 4-2 shows.
Figure 4-2. Launching the AFE881H1EVM GUI
Figure 4-3 shows the GUI after launch. If the USB2ANY controller is not connected to the PC when the software
is launched, the GUI defaults to demo mode. Figure 4-4 illustrates the bottom-left corner of the GUI showing
the hardware connection status: DEMO MODE or CONNECTED. After the USB2ANY controller is properly
connected to the PC, close and reopen the AFE881H1EVM software to detect the device.
Figure 4-3. AFE881H1EVM GUI at Launch
Figure 4-4. USB2ANY Digital Controller Connection Status
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Software Overview
4.3 Software Features
The AFE881H1EVM GUI allows for SPI communication with the AFE881H1 and control of the device. While
the entire register map is available to the user, some features have been integrated into user controls for easy
operation.
4.3.1 AFE881H1 Register Page
Figure 4-5 shows the AFE881H1 Register page of the AFE881H1EVM GUI. This page allows direct access
to all registers on the AFE881H1. The GUI handles page address management, allowing seamless access to
registers.
The Register Map section in the center of the page lists all the registers, grouped by the pages in the device.
Directly above the Register Map section are four buttons that allow read and write access to all registers.
The Field View section on the right side of the page shows the various fields in the currently selected register.
Select a register name to highlight the register. The Field View section displays the register contents as
described in the data sheet.
Figure 4-5. AFE881H1 Register Page
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4.3.2 High Level Configuration Page
The High Level Configuration page is used to set the configuration of the AFE881H1EVM GUI. Figure 4-6 shows
the AFE881H1 High Level tab of the High Level Configuration Page. This tab is used to set the DAC range and
outputs, ADCs controls and settings, and HART modem functions for the device. Alarms and status information
are also displayed on this tab.
Figure 4-6. AFE881H1 High Level Tab
4.3.3 Using the Python Scripting Tool
The AFE881H1EVM software provides a scripting tool to automate register reads and writes for reuse. To use
the scripting tool, the Python™ programming environment must be installed. Download the latest x86 version of
Python 2.7 at https://www.python.org/downloads/. To launch the scripting tool, click Script > Launch Window, as
shown in Figure 4-7.
Figure 4-7. Launch Script Window
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Software Overview
The scripting tool launches a Python IDLE window. This window lists any register interaction when recording a
macro. To record a macro, find the Launch Window function in the Scripting tab. Figure 4-8 shows the scripting
tool recording a macro. After the actions are recorded, use the Stop button to end the script. This script can be
saved and reused as desired.
Figure 4-8. Scripting Tool Recording a Macro
If the python IDLE window does not appear, check the settings for application execution aliases. To do so, open
the Windows Settings, and then select Apps. In the resulting Apps window, select Apps & features, and then
click on the Manage app execution aliases link. The next page loads a list of apps. Deselect both application
installers for python.exe and python3.exe. Figure 4-9 shows the windows settings for managing application
execution aliases.
Figure 4-9. Deselecting App Execution Aliases
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Schematics, PCB Layout, and Bill of Materials
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5 Schematics, PCB Layout, and Bill of Materials
5.1 Board Schematic
The AFE881H1EVM schematic is shown in Figure 5-1.
Figure 5-1. AFE881H1EVM Schematic
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Schematics, PCB Layout, and Bill of Materials
5.2 PCB Components Layout
Figure 5-2 through Figure 5-5 show the board layout for the AFE881H1EVM.
Figure 5-2. AFE881H1EVM PCB Top Layer Layout
Figure 5-3. AFE881H1EVM PCB Mid Layer 1 Layout
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Figure 5-4. AFE881H1EVM PCB Mid Layer 2 Layout
Figure 5-5. AFE881H1EVM PCB Bottom Layer Layout
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Schematics, PCB Layout, and Bill of Materials
5.3 Bill of Materials
Table 5-1 lists the AFE881H1EVM bill of materials (BOM).
Table 5-1. Bill of Materials for the AFE881H1EVM
Designator
Quantity
Value
C1, C2, C3
3
10 uF
CAP, CERM, 10 uF, 25 V, +/- 20%, X5R, 0603
0603
GRT188R61E106ME13D
MuRata
C5, C6, C8, C9, C10, C11,
C12, C20, C24, C25
10
0.1 uF
CAP, CERM, 0.1 uF, 25 V, +/- 5%, X7R, 0603
0603
06033C104JAT2A
AVX
C13
1
100 pF
CAP, CERM, 100 pF, 100 V, +/- 5%, X7R, 0805
0805
C0805C101J1RACTU
Kemet
C14, C15
2
680 pF
CAP, CERM, 680 pF, 25 V, +/- 10%, X7R, 0805
0805
885012207085
Würth Elektronik
C16
1
2200 pF
CAP, CERM, 2200 pF, 50 V, +/- 5%, C0G/NP0, 0603
0603
GRM1885C1H222JA01D
MuRata
C17, C18
2
1000 pF
CAP, CERM, 1000 pF, 50 V, +/- 1%, C0G/NP0, 0805
0805
08055A102FAT2A
AVX
C19, C21
2
680 pF
CAP, CERM, 680 pF, 100 V, +/- 5%, C0G/NP0, 0805
0805
08051A681JAT2A
AVX
C22
1
4700 pF
CAP, CERM, 4700 pF, 25 V, +/- 5%, C0G/NP0, 0805
0805
08053A472JAT2A
AVX
C23
1
1000 pF
CAP, CERM, 1000 pF, 50 V, +/- 5%, C0G/NP0, AECQ200 Grade 1, 0402
0402
CGA2B2C0G1H102J050BA
TDK
D3, D4
2
Diode, TVS, Bi, 5.5 V, 14 Vc, 1x0.6mm
1x0.6mm
ESD105B102ELE6327XTMA1 Infineon Technologies
D5
1
Diode, Switching, 75 V, 0.15 A, SOD-323
SOD-323
1N4148WX-TP
Micro Commercial
Components
H1, H2, H3, H4
4
Machine Screw, Round, #4-40 x 1/4, Nylon, Philips
panhead
Screw
NY PMS 440 0025 PH
B&F Fastener Supply
H5, H6, H7, H8
4
Standoff, Hex, 0.5"L #4-40 Nylon
Standoff
1902C
Keystone
J1, J6, J8, J14, J16, J17
6
Header, 100mil, 2x1, Tin, TH
Header, 2x1, 100mil, 5-146278-2
TH
TE Connectivity
J2, J4, J18
3
Standard Banana Jack, Uninsulated, 5.5mm
Keystone_575-4
575-4
Keystone
J3
1
Header, 100mil, 2x2, Gold, TH
2x2 Header
TSW-102-07-G-D
Samtec
J7, J13, J19, J20
4
Header, 100mil, 3x1, Gold, TH
3x1 Header
TSW-103-07-G-S
Samtec
J9, J12
2
Header, 100mil, 5x2, Gold, TH
5x2 Header
TSW-105-07-G-D
Samtec
J10
1
Header(shrouded), 2.54mm, 15x2, Gold, TH
Header(shrouded),
2.54mm, 15x2, TH
302-S301
On-Shore Technology
J11
1
Terminal Block, 3.5mm Pitch, 3x1, TH
10.5x8.2x6.5mm
ED555/3DS
On-Shore Technology
J15, J21, J22
3
Terminal Block, 3.5mm Pitch, 2x1, TH
7.0x8.2x6.5mm
ED555/2DS
On-Shore Technology
R1, R12
2
RES, 2.0 k, 5%, 0.125 W, AEC-Q200 Grade 0, 0805
0805
ERJ-6GEYJ202V
Panasonic
75 V
2.0 k
Description
Package Reference
SLAU858A – NOVEMBER 2021 – REVISED JUNE 2023
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Part Number
Manufacturer
AFE881H1 Evaluation Module
Copyright © 2023 Texas Instruments Incorporated
19
Schematics, PCB Layout, and Bill of Materials
www.ti.com
Table 5-1. Bill of Materials for the AFE881H1EVM (continued)
Designator
Quantity
Value
R3, R5
2
15.8
RES, 15.8, 1%, 0.1 W, AEC-Q200 Grade 0, 0603
0603
CRCW060315R8FKEA
Vishay-Dale
R4, R6, R11, R14
4
100 k
RES, 100 k, 1%, 0.125 W, AEC-Q200 Grade 0, 0805
0805
CRCW0805100KFKEA
Vishay-Dale
R7
1
10.0 k
RES, 10.0 k, 1%, 0.125 W, AEC-Q200 Grade 0, 0805
0805
CRCW080510K0FKEA
Vishay-Dale
R8, R10
2
200 k
RES, 200 k, 1%, 0.125 W, AEC-Q200 Grade 0, 0805
0805
CRCW0805200KFKEA
Vishay-Dale
R9
1
30.0 k
RES, 30.0 k, 0.1%, 0.125 W, 0805
0805
RG2012P-303-B-T5
Susumu Co Ltd
R15
1
1k
RES, 1.00 k, 1%, 0.125 W, AEC-Q200 Grade 0, 0805
0805
ERJ-6ENF1001V
Panasonic
TP1, TP5, TP8, TP9, TP11,
TP12, TP13, TP14, TP15,
TP16
10
Test Point, Miniature, White, TH
White Miniature
Testpoint
5002
Keystone
TP2, TP3, TP4, TP6
4
Test Point, Multipurpose, Black, TH
Black Multipurpose
Testpoint
5011
Keystone
TP7
1
Test Point, Miniature, Orange, TH
Orange Miniature
Testpoint
5003
Keystone
TP10
1
Test Point, Miniature, Red, TH
Red Miniature
Testpoint
5000
Keystone
U2
1
8-Bit Dual-Supply Bus Transceiver with Configurable
Voltage-Level Shifting and Three-State Outputs,
DB0024A (SSOP-24)
DB0024A
SN74LVC8T245DBR
Texas Instruments
U4
1
16-Bit, Low-Power DACs With Internal HART Modem,
Voltage Reference, and Diagnostic ADC for 4-20mA
Loop-Powered Applications, UQFN24
UQFN24
AFE881H1RRUT
Texas Instruments
U3, U5
2
2-Bit Dual Supply Transceiver with Configurable
Voltage-Level Shifting and 3-State Outputs, DCU0008A
(VSSOP-8)
DCU0008A
SN74LVC2T45DCURG4
Texas Instruments
C4
0
0.1 uF
CAP, CERM, 0.1 uF, 25 V, +/- 5%, X7R, 0603
0603
06033C104JAT2A
AVX
C7
0
1 uF
CAP, CERM, 1 uF, 50 V, +/- 10%, X7R, 0603
0603
UMK107AB7105KA-T
Taiyo Yuden
J5
0
Header, 100mil, 2x1, Tin, TH
Header, 2x1, 100mil, 5-146278-2
TH
TE Connectivity
R2
0
RES, 2.0 k, 5%, 0.125 W, AEC-Q200 Grade 0, 0805
0805
ERJ-6GEYJ202V
Panasonic
U1
0
30 ppm / degC Drift, 3.9 uA, Voltage Reference, -40
to 125 degC, 3-pin SOT-23 (DBZ), Green (RoHS & no
Sb/Br)
DBZ0003A
REF3312AIDBZR
Texas Instruments
20
2.0 k
Description
Package Reference
AFE881H1 Evaluation Module
Part Number
Manufacturer
SLAU858A – NOVEMBER 2021 – REVISED JUNE 2023
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Copyright © 2023 Texas Instruments Incorporated
www.ti.com
Revision History
6 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision * (November 2021) to Revision A (June 2023)
Page
• Changed Figure 3-2 to Rev B of EVM board......................................................................................................7
• Added to J9 and J12 descriptions in Table 3-2...................................................................................................8
• Changed Figure 3-3 to Rev B of the board........................................................................................................ 8
• Updated PCB schematic to Rev B of the EVM board...................................................................................... 16
• Updated PCB layout figures to Rev B of the EVM board................................................................................. 17
• Updated the BOM to Rev B of the EVM board.................................................................................................19
SLAU858A – NOVEMBER 2021 – REVISED JUNE 2023
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Copyright © 2023 Texas Instruments Incorporated
AFE881H1 Evaluation Module
21
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.
2
Limited 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
3
Regulatory 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.
2
www.ti.com
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
3.3.2
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。
https://www.ti.com/ja-jp/legal/notice-for-evaluation-kits-delivered-in-japan.html
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.
2.
3.
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,
Use EVMs only after User obtains the license of Test Radio Station as provided in Radio Law of Japan with respect to
EVMs, or
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.
2.
3.
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。
実験局の免許を取得後ご使用いただく。
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。https://www.ti.com/ja-jp/legal/notice-for-evaluation-kits-for-power-line-communication.html
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.
3
www.ti.com
4
EVM Use Restrictions and Warnings:
4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT
LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.
4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling
or using the EVM, including without limitation any warning or restriction notices. The notices contain important safety information
related to, for example, temperatures and voltages.
4.3 Safety-Related Warnings and Restrictions:
4.3.1
User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user
guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable and
customary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to input
and output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, or
property damage. If there are questions concerning performance ratings and specifications, User should contact a TI
field representative prior to connecting interface electronics including input power and intended loads. Any loads applied
outside of the specified output range may also result in unintended and/or inaccurate operation and/or possible
permanent damage to the EVM and/or interface electronics. Please consult the EVM user guide prior to connecting any
load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative.
During normal operation, even with the inputs and outputs kept within the specified allowable ranges, some circuit
components may have elevated case temperatures. These components include but are not limited to linear regulators,
switching transistors, pass transistors, current sense resistors, and heat sinks, which can be identified using the
information in the associated documentation. When working with the EVM, please be aware that the EVM may become
very warm.
4.3.2
EVMs 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 assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees,
affiliates, contractors or designees. User assumes all responsibility and liability to ensure that any interfaces (electronic
and/or mechanical) between the EVM and any human body are designed with suitable isolation and means to safely
limit accessible leakage currents to minimize the risk of electrical shock hazard. User assumes all responsibility and
liability for any improper or unsafe handling or use of the EVM by User or its employees, affiliates, contractors or
designees.
4.4 User assumes all responsibility and liability to determine whether the EVM is subject to any applicable international, federal,
state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes all
responsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility and
liability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and local
requirements.
5.
Accuracy of Information: To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurate
as possible. However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites as
accurate, complete, reliable, current, or error-free.
6.
Disclaimers:
6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY MATERIALS PROVIDED WITH THE EVM (INCLUDING, BUT NOT
LIMITED TO, REFERENCE DESIGNS AND THE DESIGN OF THE EVM ITSELF) ARE PROVIDED "AS IS" AND "WITH ALL
FAULTS." TI DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING SUCH ITEMS, INCLUDING BUT
NOT LIMITED TO ANY EPIDEMIC FAILURE WARRANTY OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADE
SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS.
6.2 EXCEPT FOR THE LIMITED RIGHT TO USE THE EVM SET FORTH HEREIN, NOTHING IN THESE TERMS SHALL BE
CONSTRUED AS GRANTING OR CONFERRING ANY RIGHTS BY LICENSE, PATENT, OR ANY OTHER INDUSTRIAL OR
INTELLECTUAL PROPERTY RIGHT OF TI, ITS SUPPLIERS/LICENSORS OR ANY OTHER THIRD PARTY, TO USE THE
EVM IN ANY FINISHED END-USER OR READY-TO-USE FINAL PRODUCT, OR FOR ANY INVENTION, DISCOVERY OR
IMPROVEMENT, REGARDLESS OF WHEN MADE, CONCEIVED OR ACQUIRED.
7.
4
USER'S INDEMNITY OBLIGATIONS AND REPRESENTATIONS. USER WILL DEFEND, INDEMNIFY AND HOLD TI, ITS
LICENSORS AND THEIR REPRESENTATIVES HARMLESS FROM AND AGAINST ANY AND ALL CLAIMS, DAMAGES, LOSSES,
EXPENSES, COSTS AND LIABILITIES (COLLECTIVELY, "CLAIMS") ARISING OUT OF OR IN CONNECTION WITH ANY
HANDLING OR USE OF THE EVM THAT IS NOT IN ACCORDANCE WITH THESE TERMS. THIS OBLIGATION SHALL APPLY
WHETHER CLAIMS ARISE UNDER STATUTE, REGULATION, OR THE LAW OF TORT, CONTRACT OR ANY OTHER LEGAL
THEORY, AND EVEN IF THE EVM FAILS TO PERFORM AS DESCRIBED OR EXPECTED.
www.ti.com
8.
Limitations on Damages and Liability:
8.1 General Limitations. IN NO EVENT SHALL TI BE LIABLE FOR ANY SPECIAL, COLLATERAL, INDIRECT, PUNITIVE,
INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF THESE
TERMS OR THE USE OF THE EVMS , REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES. EXCLUDED DAMAGES INCLUDE, BUT ARE NOT LIMITED TO, COST OF REMOVAL OR
REINSTALLATION, ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, RETESTING,
OUTSIDE COMPUTER TIME, LABOR COSTS, LOSS OF GOODWILL, LOSS OF PROFITS, LOSS OF SAVINGS, LOSS OF
USE, LOSS OF DATA, OR BUSINESS INTERRUPTION. NO CLAIM, SUIT OR ACTION SHALL BE BROUGHT AGAINST TI
MORE THAN TWELVE (12) MONTHS AFTER THE EVENT THAT GAVE RISE TO THE CAUSE OF ACTION HAS
OCCURRED.
8.2 Specific Limitations. IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY USE OF AN EVM PROVIDED
HEREUNDER, INCLUDING FROM ANY WARRANTY, INDEMITY OR OTHER OBLIGATION ARISING OUT OF OR IN
CONNECTION WITH THESE TERMS, , EXCEED THE TOTAL AMOUNT PAID TO TI BY USER FOR THE PARTICULAR
EVM(S) AT ISSUE DURING THE PRIOR TWELVE (12) MONTHS WITH RESPECT TO WHICH LOSSES OR DAMAGES ARE
CLAIMED. THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT.
9.
Return Policy. Except as otherwise provided, TI does not offer any refunds, returns, or exchanges. Furthermore, no return of EVM(s)
will be accepted if the package has been opened and no return of the EVM(s) will be accepted if they are damaged or otherwise not in
a resalable condition. If User feels it has been incorrectly charged for the EVM(s) it ordered or that delivery violates the applicable
order, User should contact TI. All refunds will be made in full within thirty (30) working days from the return of the components(s),
excluding any postage or packaging costs.
10. Governing Law: These terms and conditions shall be governed by and interpreted in accordance with the laws of the State of Texas,
without reference to conflict-of-laws principles. User agrees that non-exclusive jurisdiction for any dispute arising out of or relating to
these terms and conditions lies within courts located in the State of Texas and consents to venue in Dallas County, Texas.
Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief
in any United States or foreign court.
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