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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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.

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3.3 BOOSTXL-TLC2543 EVM Stack Up
The following steps are the instructions to set up the BOOSTXL-TLC2543 EVM for evaluation:
1. Stack the BOOSTXL-TLC2543 EVM on the TM4C1294 LaunchPad Development Kit. Make sure the
20-pin connector (J1, J3) on BOOSTXL-TLC2543 EVM is mapped against connector X6 and connector
(J4, J2), and that the BOOSTXL-TLC2543 EVM is mapped against connector X7 on the TM4C1294
LaunchPad Development Kit. Pin 1 of BOOSTXL-TLC2543 EVM must align with pin 1 of connector X6
on the TM4C1294 LaunchPad Development Kit.
2. Position the power select JP1 jumper on the TM4C1294 LaunchPad Development Kit on pins that
correspond to the OTG.
3. Connect the TM4C1294 LaunchPad Development Kit USB port U7 to the PC with the micro USB
cable. This must light the green power LED D0 on the TM4C1294 Development Kit
4. Open computer's "Device Manager". You must see under ports “VIA USB BoosterPack” and “VIA USB
BoosterPack Console” as shown in Figure 9
Figure 9. TMC1294 LaunchPad™ Development Kit VIA BoosterPack™ Plug-in Module Driver

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5. Figure 10 shows the assembled BOOSTXL-TLC2543 EVM and TM4C1294 LaunchPad Development
Kit configuration.
Figure 10. BOOSTXL-TLC2543 EVM stacked on TM4C1294 LaunchPad™ Development Kit

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4 BOOSTXL-TLC2543 EVM GUI Operation
4.1 Description
Figure 11 shows the landing page of the BOOSTXL-TLC2543 EVM GUI. This page provides a high-level
overview of the TLC2543-Q1 device. The left corner shows the tabs required to navigate to the
BOOSTXL-TLC2543 EVM GUI Home and Analysis pages. When the TM4C1294 LaunchPad Development
Kit with the stacked BOOSTXL-TLC254 EVM is connected to the PC with the micro USB cable, the GUI
reads the onboard EEPROM to detect the BoosterPack Plug-in Module. Once the BoosterPack Plug-in
Module is detected and connected, the GUI indicates this status at the bottom left corner of the GUI.
Figure 11. BOOSTXL-TLC2543 GUI Landing Page

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4.2 Time Domain Analysis
Go to Analysis page, and select the Time Domain Analysis. Time Domain Analysis displays the acquired
data versus time for the selected channel as shown in Figure 12. Note default reference voltage for ADC
measurement REF Volt (V) is set as 4.5 V.
4.2.1 Measure AIN0 (Channel0) Voltage
This section describes the steps involved in selecting and measuring AIN0 (Channel0) voltage:
1. Make sure following shunt is in place on the BOOSTXL-TLC2543 EVM: J11 between 2 and 3 (select
VREF = 4.5 V)
2. Connect J10.1 to J1.1 (3.3 V) by a jumper wire.
3. Select "Samples" as 4096, set "SCLK" as 1000 (KHz), and set "Sample Rate" as 10 (KHz).
4. Make sure "Selected Channel" is Channel0 as shown in Figure 12 below.
5. Press “Collect”.
6. Make sure the Min Code, Max Code, Min Volt (V), and Max Volt (V) read outs are shown. See
Figure 12 for an example.
Figure 12. AIN0 (Channel0) Voltage

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4.3 Frequency Domain Analysis
The Frequency Domain page in the GUI performs the fast fourier transform (FFT) of the captured data and
shows the resulting frequency domain plots of the selected channel of TLC2543-Q1. This page also
calculates key ADC dynamic performance parameters, such as signal-to-noise ratio (SNR), total harmonic
distortion (THD), signal-to-noise and distortion ratio (SINAD), spurious-free dynamic range (SFDR), and
effective number of bits (ENOB). Figure 13 shows the Frequency Domain analysis display for a 2-kHz
sinusoidal input generated by PSIEVM.
Figure 13. Frequency Domain Analysis Page

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4.3.1 FFT Analysis Settings and Controls
Sample Rate - This field indicates the sampling frequency of the ADC data (kHz)
Samples - The FFT requires a time domain record with a number of samples that is a power of 2. The
Samples drop-down menu provides a list of values that satisfy this requirement.
Fund Freq (kHz) - This field displays the frequency of the largest amplitude input signal computed from
the FFT data, typically the fundamental frequency.
Window - The window function is a mathematical function that reduces the signal to zero at the end
points of the data block.
In applications where coherent sampling cannot be achieved, a window-weighing function can be applied
to the data to minimize spectral leakage. The following options are available:
• Rectangular
• Hamming
• Hann
• Blackman
• 7-Term Blackman-Harris
For a more thorough discussion of windowing, refer to IEEE1241-2000
Harmonics - This field sets the number of harmonics that are included in the FFT performance
calculations.
4.4 Histogram Analysis
The Histogram Analysis page creates a histogram of the captured channel data and displays it. A
histogram is merely a count of the number of times a code has occurred in a particular data set. The
following parameters of the captured data set are displayed:
• The Std Dev [σ]displays the standard deviation of the data set. This value is equivalent to the RMS
noise of the signal when analyzing a dc data set.
• The Mean displays the average value of the data set.
• The Median displays the median value of the data set.
• The Code Spread displays the peak-to-peak spread of the codes in the data set; for a dc data set, this
range would be the peak-to-peak noise.

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5 Bill of Materials, Printed-Circuit Board Layout, and Schematics
This section contains the BOOSTXL-TLC2543 EVM bill of materials (BOM), printed-circuit board (PCB)
layout, and schematics.
5.1 Bill of Materials
Table 2 lists the bill of materials (BOM) for the BOOSTXL-TLC2543 EVM.
Table 2. Bill of Materials
Designator Quantity Description Manufacturer Part Number Manufacturer
PCB 1 Printed Circuit Board DC012 Any
C1 1 CAP, CERM, 0.22 µF, 25 V, +/- 5%, X7R, 0603 C0603C224J3RAC7867 Kemet
C2, C4, C5 3 CAP, CERM, 2.2 µF, 16 V, +/- 10%, X7R, 0805 C0805C225K4RACTU Kemet
C3 1 CAP, CERM, 180 pF, 50 V, +/- 1%, C0G/NP0, 0402 04025A181FAT2A AVX
C6 1 CAP, CERM, 10 µF, 16 V, +/- 20%, X5R, 0805 0805YD106MAT2A AVX
C7, C16, C23, C27,
C28, C29 6 CAP, CERM, 1 µF, 25 V, +/- 10%, X7R, 0603 C0603C105K3RACTU Kemet
C9, C10, C12, C13,
C17, C19, C21 7 CAP, CERM, 0.01 µF, 16 V, +/- 10%, X7R, 0603 GRM188R71C103KA01D MuRata
C11, C15 2 CAP, CERM, 0.1 µF, 16 V, +/- 10%, X7R, 0603 GRM188R71C104KA01D MuRata
C18, C30 2 CAP, CERM, 1000 pF, 50 V, +/- 5%, C0G/NP0, 0603 C0603C102J5GACTU Kemet
C22, C25 2 CAP, CERM, 0.1 uF, 25 V, +/- 10%, X5R, 0603 06033D104KAT2A AVX
C26 1 CAP, CERM, 10 uF, 25 V, +/- 10%, X5R, 0805 C2012X5R1E106K125AB TDK
C31 1 CAP, TA, 10 uF, 10 V, +/- 20%, 3 ohm, SMD TAJA106M010RNJ AVX
J1/J3, J2/J4 2 Receptacle, 2.54mm, 10x2, Tin, TH SSQ-110-03-T-D Samtec
J5, J7, J12 3 Header, 100mil, 2x1, Tin, TH PEC02SAAN Sullins Connector Solutions
J10 1 Header, 100mil, 10x2, Gold, TH TSW-110-07-G-D Samtec
J11 1 Header, 100mil, 3x1, Tin, TH PEC03SAAN Sullins Connector Solutions
R1, R3, R5, R6, R7,
R8, R9, R15, R19,
R28, R30
11 RES, 0, 5%, 0.1 W, 0603 CRCW06030000Z0EA Vishay-Dale
R2 1 RES, 10.0, 1%, 0.1 W, 0603 RC0603FR-0710RL Yageo America
R4 1 RES, 100 k, 0.1%, 0.063 W, 0402 RG1005P-104-B-T5 Susumu Co Ltd
R10 1 RES, 31.6 k, 1%, 0.063 W, 0402 CRCW040231K6FKED Vishay-Dale
R11, R14 2 RES, 10.0 k, 1%, 0.063 W, 0402 CRCW040210K0FKED Vishay-Dale
R12, R13 2 RES, 1.00 k, 1%, 0.0625 W, 0402 RC0402FR-071KL Yageo America
R16, R26 2 RES, 100 k, 5%, 0.063 W, 0402 CRCW0402100KJNED Vishay-Dale
R18, R29 2 RES, 100, 1%, 0.063 W, 0402 CRCW0402100RFKED Vishay-Dale
R20, R31 2 RES, 1.0 M, 5%, 0.063 W, 0402 CRCW04021M00JNED Vishay-Dale
R21, R22, R23, R24 4 RES, 49.9, 1%, 0.063 W, 0402 RC0402FR-0749R9L Yageo America
SH-J1 1 Shunt, 100mil, Gold plated, Black 382811-6 AMP
TP4, TP5, TP6, TP7 4 Test Point, Miniature, Black, TH 5001 Keystone
U1 1 5.5 V, Buck-Boost Charge Pump Regulator, 60 mA, 3 to
5.5 V Input, -40 to 85 degC, 6-pin SOT23 (DDC6),
Green (RoHS & no Sb/Br)
REG71055IDDCRQ1 Texas Instruments
U2 1 Single Output High PSRR LDO, 200 mA, Adjustable 1.2
to 6.5 V Output, 2.7 to 6.5 V Input, with Low IQ, 6-pin
SON (DRV), -40 to 125 degC, Green (RoHS & no
Sb/Br)
TPS79901QDRVRQ1 Texas Instruments
U3, U6 2 Automotive Catalog Dual-Bit Dual Supply Transceiver
with Configurable Voltage Translation, DCU0008A SN74LVC2T45QDCURQ1 Texas Instruments
U4 1 I2C BUS EEPROM (2-Wire), TSSOP-B8 BR24G32FVT-3AGE2 Rohm
U5 1 Automotive Catalog Single-Bit Dual-Supply Bus
Transceiver with Configurable Voltage Translation and,
DCK0006A
SN74LVC1T45QDCKRQ1 Texas Instruments
U7 1 Automotive, Precision, 20MHz, 0.9pA Ib, RRIO, CMOS
Operational Amplifier, DGK0008A (VSSOP-8) OPA2320AQDGKRQ1 Texas Instruments

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Table 2. Bill of Materials (continued)
Designator Quantity Description Manufacturer Part Number Manufacturer
U8 1 Automotive 12-Bit Analog-to-Digital Converter With
Serial Control and 11 Analog Inputs, DB0020A (SSOP-
20)
TLC2543IDBRQ1 Texas Instruments
U9 1 Automotive Catalog, Low Noise, Very Low Drift,
Precision Voltage Reference, -40 to125 degC, 8-pin
SOIC (D), Green (RoHS & no Sb/Br)
REF5045AQDRQ1 Texas Instruments
C8, C14, C20, C24,
C32 0 CAP, CERM, 0.01 µF, 16 V, +/- 10%, X7R, 0603 GRM188R71C103KA01D MuRata
J6, J9, J14 0 Header, 100mil, 2x1, Tin, TH PEC02SAAN Sullins Connector Solutions
J8, J13 0 SMA Straight PCB Socket Die Cast, 50 Ohm, TH 5-1814832-1 TE Connectivity
R17, R27 0 RES, 1.0 k, 5%, 0.063 W, 0402 CRCW04021K00JNED Vishay-Dale
R25, R32 0 RES, 330 k, 5%, 0.063 W, 0402 CRCW0402330KJNED Vishay-Dale
TP1, TP2, TP3,
TP4, TP5, TP6, TP7 0 Test Point, Multipurpose, Black, TH 5011 Keystone
5.2 PCB Layout
Figure 14 to Figure 17 show the EVM PCB layout.
Figure 14. BOOSTXL-TLC2543 Top Layer Routing

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Figure 15. BOOSTXL-TLC2543 Ground Layer

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Figure 16. BOOSTXL-TLC2543 Power Layer