Texas Instruments TLC2543 User manual

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BOOSTXL-TLC2543 EVM User Guide
User's Guide
SNAU232–July 2018
BOOSTXL-TLC2543 EVM User Guide
The TLC2543-Q1 BoosterPack™ Plug-in Module (BOOSTXL-TLC2543) allows users to evaluate the
functionality of Texas Instruments' TLC2543-Q1 SAR ADC. The TLC2543-Q1 is a 12-bit, 11-channel,
automotive qualified SAR ADC. This user’s guide describes both the hardware platform with an TLC2543-
Q1 device and the graphical user interface (GUI) software used to configure the various modes of
operation of this device.
Contents
1 Introduction ................................................................................................................... 2
2 BOOSTXL-TLC2543 EVM Overview...................................................................................... 3
3 BOOSTXL-TLC2543 EVM Setup.......................................................................................... 5
4 BOOSTXL-TLC2543 EVM GUI Operation .............................................................................. 13
5 Bill of Materials, Printed-Circuit Board Layout, and Schematics..................................................... 17
List of Figures
1 BOOSTXL-TLC2543 EVM Block Diagram ............................................................................... 2
2 BOOSTXL-TLC2543EVM Top Level Overview.......................................................................... 3
3 BOOSTXL-TLC2543 EVM GUI Installation .............................................................................. 5
4 BOOSTXL-TLC2543 EVM Driver Installation ............................................................................ 6
5 TM4C1294 LaunchPad™ Development Kit Stellaris Virtual Serial Port and ICDI Driver .......................... 7
6 TM4C1294 LaunchPad™ Development Kit Software Programming Setup.......................................... 8
7 TM4C1294 LaunchPad™ Development Kit Selection in Configuration Tab......................................... 9
8 TM4C1294 LaunchPad™ Development Kit Programming Using LM Flash Programmer........................ 10
9 TMC1294 LaunchPad™ Development Kit VIA BoosterPack™ Plug-in Module Driver ........................... 11
10 BOOSTXL-TLC2543 EVM stacked on TM4C1294 LaunchPad™ Development Kit .............................. 12
11 BOOSTXL-TLC2543 GUI Landing Page................................................................................ 13
12 AIN0 (Channel0) Voltage.................................................................................................. 14
13 Frequency Domain Analysis Page....................................................................................... 15
14 BOOSTXL-TLC2543 Top Layer Routing................................................................................ 18
15 BOOSTXL-TLC2543 Ground Layer...................................................................................... 19
16 BOOSTXL-TLC2543 Power Layer....................................................................................... 20
17 BOOSTXL-TLC2543 Bottom Layer Routing............................................................................ 21
18 BOOSTXL-TLC2543 EVM Schematic Diagram........................................................................ 22
List of Tables
1 Input Connector and Channel Configuration............................................................................. 3
2 Bill of Materials ............................................................................................................. 17
Trademarks
BoosterPack, LaunchPad are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners.

Launchpad
Connectors
TLC2543
(U8)
Input
Connector
(J10)
5.5V
5V
11 Inputs
(AIN0 tAIN10)
OPA2320-Q1 (U7)
SPI
5V
REG71055-Q1
(U1)
TPS79901-Q1
(U2)
I2C
BR24G32FVT
-3AGE2
(EEPROM U4)
VCC
SMA
(J8)
SMA
(J13)
Two channels with
optional SMA input
REF5040A-Q1 (U9)
4.5V Reference
VREF
4.5V
AIN0 AIN1
EOC
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BOOSTXL-TLC2543 EVM User Guide
1 Introduction
The BOOSTXL-TLC2543 is a fully-assembled evaluation platform designed to highlight the TLC2543-Q1
device features and its various modes of operations.
The BOOSTXL-TLC2543 EVM interfaces to the TM4C1294 LaunchPad™ Development Kit (EK-
TM4C1294XL). The Tiva C Series TM4C1294 MCU on the TM4C1294 LaunchPad Development Kit
communicates with the TLC2543-Q1 through its SPI interface and acts as a USB-to-PC GUI
communication bridge.
NOTE: The BOOSTXL-TLC2543 requires an external master controller to evaluate the TLC2543-
Q1.
The TM4C1294 LaunchPad Development Kit is controlled by commands received from the BOOSTXL-
TLC2543 EVM GUI, and the kit returns the data to the GUI for display and analysis. If the TM4C1294
LaunchPad Development Kit is not used, the BoosterPack™ Plug-in Module format of the BOOSTXL-
TLC2543 board allows an alternative external host to communicate with the TLC2543-Q1.
The BOOSTXL-TLC2543 EVM incorporates all required circuitry and components with the following
features:
• The TLC2543-Q1 12-bit, 11-channel, automotive qualified SAR ADC with SPI interface
• The REF5045A optional low power voltage reference to generate a 4.5-V reference for the TLC2543-
Q1 VREF pin when using 5.0 V from TM4C1294 LaunchPad Development Kit
• The OPA2320 optional precision, low noise, dual operational amplifier to generate buffered input for
the TLC2543-Q1 AIN0 and AIN1 pins
• The TPS79901 optional adjustable linear regulator to generate stable 5V output voltage to power the
TLC2543-Q1 VCC pin when using the USB power from the TM4C1294 LaunchPad Development Kit
• SPI interface for communication and configuration of modes available on the TLC2543-Q1
Figure 1 shows the BOOSTXL-TLC2543 EVM architecture along with the key components and blocks
listed in the features.
Figure 1. BOOSTXL-TLC2543 EVM Block Diagram

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2 BOOSTXL-TLC2543 EVM Overview
Section 2 lists various onboard components that are used to interface analog input, digital interface, and
provide power supply to BOOSTXL-TLC2543 EVM. Figure 2 shows a BOOSTXL-TLC2543 EVM overview.
Figure 2. BOOSTXL-TLC2543EVM Top Level Overview
2.1 Connectors for Analog Input
The BOOSTXL-TLC2543 EVM is designed for easy interface-to-analog sources through a 100-mil header.
Connector J10 allows analog source connectivity. Table 1 lists the analog input connector and input
channel configuration.
Table 1. Input Connector and Channel Configuration
J10 Connector Pin Description
J10:1 Analog input for channel 0 of ADC
J10:2 Analog input for channel 1 of ADC
J10:3 Analog input for channel 2 of ADC
J10:4 Analog input for channel 3 of ADC
J10:5 and J10:6 BoosterPack™ Plug-in Module ground
J10:7 Analog input for channel 4 of ADC
J10:8 Analog input for channel 5 of ADC
J10:9 Analog input for channel 6 of ADC
J10:10 Analog input for channel 7 of ADC
J10:11 Analog input for channel 8 of ADC

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Table 1. Input Connector and Channel Configuration (continued)
J10 Connector Pin Description
J10:12 Analog input for channel 9 of ADC
J10:13 Analog input for channel 10 of ADC
J10:15 and J10:16 BoosterPack™ Plug-in Module ground
J10:14, 17, 18, 19, 20 No Connection
The analog input range is from GND to +VREF. A maximum of 11 single-ended inputs may be applied to
J10 using pins J10:1 to J10:4 and J10:7 to J10:13.
The user can configure the input to channel 0 to use the OPA2320 buffer through a 100-Ωresistor with an
1000-pF capacitor to GND. Jumper J7 can be placed on pins 1-2 to select this unity gain buffer
configuration of the OPA2320. In this case, the channel 0 input is provided through the SMA connector J8.
The user can also place Jumper J12 on pins 1-2 to create a similar configuration for a channel 1 input
provided through the SMA connector J13.
2.2 Voltage Reference
The BOOSTXL-TLC2543 EVM has two sources for the reference voltage. Jumper J11 can select the
VREF voltage from either the REF5045A (U9) or from 5-V VCC. The EVM is factory-configured for use
with the REF5045A 4.5-V reference (J11 pins 2-3).
2.3 Digital Interface
As noted in Section 1, the BOOSTXL-TLC2543 EVM interfaces with the TM4C1294 LaunchPad
Development Kit, which in turn communicates with the computer over USB. The two devices on the
booster pack that the TM4C1294 communicates with are the TLC2543-Q1 ADC (over SPI) and the
EEPROM (over I2C). The EEPROM comes preprogrammed with the information required to configure and
initialize the BOOSTXL- TLC2543 EVM platform every time on power up.
2.4 BOOSTXL-TLC2543 Digital I/O Interface
The BOOSTXL-TLC2543 EVM supports the SPI digital interface and functional modes as detailed in the
TLC2543-Q1 data sheet. The TM4C1294 LaunchPad Development Kit is operating at a 3.3-V logic level
and is connected to the 5-V digital I/O lines of the ADC through level shifters (SN74LVC1T45QDCURQ1
and SN74LVC2T45QDCURQ1).
2.5 Power Supply
The device supports a single power supply with a wide range of operation. The VCC can operate from 2.7
V to 5 V. The available onboard TPS79901 adjustable voltage regulator is configured to supply 5 V to the
TLC2543-Q1 VCC pin on the BOOSTXL-TLC2543 EVM.

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3 BOOSTXL-TLC2543 EVM Setup
3.1 BOOSTXL-TLC2543 EVM Graphical User Interface Software Installation
The following steps describe the BOOSTXL-TLC2543 EVM GUI software installation:
1. Download the latest version of the EVM graphical user interface (GUI) installer from the Tools and
Software folder of the device, and run the GUI installer to install the EVM GUI software on your
windows PC.
2. Accept the License Agreements and follow the on-screen instructions to complete the installation (see
Figure 3).
Figure 3. BOOSTXL-TLC2543 EVM GUI Installation

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3. Click the Next button when the Device Driver Installation Wizard prompt appears on the screen to start
the installation process (see Figure 4). Click the Finish button when the install is complete.
Figure 4. BOOSTXL-TLC2543 EVM Driver Installation

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4. Open the computer's "Device Manager". You must be able to see the "Stellaris Virtual Serial Port" and
"Stellaris In-Circuit Debug Interface" as shown in Figure 5.
Figure 5. TM4C1294 LaunchPad™ Development Kit Stellaris Virtual Serial Port and ICDI Driver

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3.2 LM Flash Programmer for TM4C1294 LaunchPad™ Development Kit Software
Programming
The TM4C1294 LaunchPad Development Kit ships with a default firmware program flashed on its
memory. When a TM4C1294 LaunchPad Development Kit is connected to the PC for the first time, its
firmware needs to be updated for communications with the BOOSTXL-TLC2543 EVM. The following steps
describe the programming of this firmware on the flash memory:
1. Download the latest version of LM Flash Programmer. The LM Flash Programmer is also included as
part of the BOOSTXL-TLC2543 EVM GUI installation in the following folder: C:\Program Files
(x86)\Texas Instruments\TLC2543\Firmware
2. Make sure the power select JP1 jumper on the TM4C1294 LaunchPad Development Kit is on ICDI.
Connect the Debug USB port on the TM4C1294 LaunchPad Development Kit to the PC with a micro
USB cable as shown in Figure 6. This must light the green power LED D0 on the TM4C1294
LaunchPad Development Kit.
Figure 6. TM4C1294 LaunchPad™ Development Kit Software Programming Setup

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3. Launch the LM Flash Programmer. In the Configuration tab select TM4C1294XL LaunchPad from the
drop-down menu as shown in Figure 7.
Figure 7. TM4C1294 LaunchPad™ Development Kit Selection in Configuration Tab

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4. Program the TM4C1294 with the BOOSTXL-TLC2543 EVM firmware from the Program tab as shown
in Figure 8.
Figure 8. TM4C1294 LaunchPad™ Development Kit Programming Using LM Flash Programmer
5. Disconnect the micro USB cable from the TM4C1294 LaunchPad Development Kit debug port after
programming and verification is successful. Switch the power select JP1 jumper position from ICDI to
the OTG location.