Launchpad
Connectors
TLC2543
(U8)
Input
Connector
(J10)
5.5V
5V
11 Inputs
(AIN0
t
AIN10)
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
Introduction
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SNAU232 – July 2018
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Copyright © 2018, Texas Instruments Incorporated
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
