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Figure 5-15. Capture Statistics

5.2.2.1.2 FFT Statistics

The FFT plot displays the following statistics:

• Input

Channels

selected

•

Fundamental frequency

•

Fundamental power

•

Noise floor

•

SNR

or signal-to-noise ratio

•

SFDR

or spurious free dynamic range

•

THD

or total harmonic distortion

•

SINAD

or signal-to-noise and distortion

•

ENOB

or effective number of bits

•

Harmonics

TLA2024EVM-PDK GUI

SBAU368 – FEBRUARY 2021

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TLA2024EVM-PDK User's Guide

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Copyright © 2021 Texas Instruments Incorporated

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Содержание TLA2024EVM-PDK

Страница 1: ...inputs This document describes both the EVM hardware platform and the graphical user interface GUI software used to configure and operate the device The user s guide also includes the EVM schematic diagram board layout and bill of materials The EVM PDK platform eases the evaluation of the TLA2024 device with hardware software and computer connectivity through the universal serial bus USB interface...

Страница 2: ...nput Header J6 10 Figure 3 4 LED Indicators D1 and D5 11 Figure 3 5 TLA2024 Supply Setting Jumper JP1 11 Figure 4 1 Browser Extension and TI Cloud Agent Installation 12 Figure 5 1 Menu Bar Options 13 Figure 5 2 GUI Navigation Bar Options 14 Figure 5 3 TLA2024 EVM Connected GUI 14 Figure 5 4 File Menu 15 Figure 5 5 Analysis Data Options 16 Figure 5 6 Register Data Options 16 Figure 5 7 Options Menu...

Страница 3: ...escription 8 Table 3 2 Terminal Block Input J5 9 Table 3 3 Terminal Block Input J6 9 Table 6 1 Bill of Materials 33 Trademarks Firefox is a trademark of Mozilla Foundation Chrome is a trademark of Google LLC All trademarks are the property of their respective owners www ti com Trademarks SBAU368 FEBRUARY 2021 Submit Document Feedback TLA2024EVM PDK User s Guide 3 Copyright 2021 Texas Instruments I...

Страница 4: ...t allows for an alternative external host to communicate with the TLA2024 by connection through the pin headers J1 through J4 Connections to the header are identified on the PCB silkscreen and listed in Table 3 1 The combined TLA2024EVM and PAMBoard make up the TLA2024EVM PDK and incorporates the following features TLA2024 four input channel ADC with header or screw terminal block input connection...

Страница 5: ...g at JP1 2 Connect an input voltage to AIN0 The PAMBoard supply voltage can be used as a voltage source to the TLA2024 Use the 3 3 V source found at header J1 pin 1 and with a wire jumper connect to the J6 header at pin 1 A0 Figure 2 1 Hardware Setup 2 2 Step 2 USB Connection and GUI Startup The TLA2024EVM GUI software can be run from a browser window Additional software may need to be installed i...

Страница 6: ...t the FSR 4 096V from the Select FSR drop down menu as shown in Figure 2 3 The selection is needed to increase the full scale range to measure the 3 3 V input Figure 2 3 Capture Setting Full Scale Range FSR 3 Close the slide out configuration window by selecting Hide Capture Settings 4 Choose Volts from the chart window for the Y axis drop down menu See Figure 2 4 5 Press the COLLECT DATA button t...

Страница 7: ...pears in the chart window once the collection completes Figure 2 4 Data Capture www ti com Quick Start SBAU368 FEBRUARY 2021 Submit Document Feedback TLA2024EVM PDK User s Guide 7 Copyright 2021 Texas Instruments Incorporated ...

Страница 8: ...e power and I2C for communication The digital connections are highlighted in the silkscreen as shown in Figure 3 1 Details regarding the connections are shown in Table 3 1 Figure 3 1 TLA2024EVM to PAMBoard Connections Table 3 1 TLA2024EVM PDK Header Pinout and Description Description Connector Connector Description Description Connector Connector Description 3 3 V J1 1 J3 21 5 V J4 40 J2 20 GND J1...

Страница 9: ...ists the channel input connections for J5 and Table 3 3 shows the input connections for J6 Both connectors are clearly labeled on the PCB silkscreen for easy input connection identification Connector J5 is a screw terminal block for attaching an external sensor with bare wire connections The terminal block includes all four inputs and a connection point for analog ground See Figure 3 2 for the inp...

Страница 10: ...2 and AIN3 The input combination of AIN1 and AIN2 is possible by adding a 47 nF capacitor at C6 see location in the schematic CAUTION The configuration options for the TLA2024 allow for a potential full scale range FSR greater than the supply This is useful when an input voltage slightly exceeds the next lower FSR However the input voltage should not exceed the range of the VDD supply selected at ...

Страница 11: ... USB cable is plugged into the PC two LEDs will light on the PAMBoard see Figure 3 4 The bottom LED D5 indicates that the 5 V output is active The top LED D1 indicates that the TLA2024EVM PDK is ready to communicate with the GUI Figure 3 4 LED Indicators D1 and D5 Jumper JP1 selects the operating voltage for the TLA2024 see Figure 3 5 When jumper JP1 is in the bottom position the VDD to the TLA202...

Страница 12: ...be the TLA2024EVM GUI software installation 1 Verify that the micro USB to USB cable from the PAMBoard to a USB port on the computer is connected 2 On the EVM landing page TLA2024EVM PDK the software is available through a web based GUI Connecting to the GUI may require a login to a user account for access Software GUI 3 First time users may be prompted to download and install the browser extensio...

Страница 13: ...nu options File Options Tools Help Figure 5 1 Menu Bar Options The upper corner of the GUI shows vertical tabs available to navigate through the various GUI displays The vertical tabs starting at the top icon include Home Chart Configuration www ti com TLA2024EVM PDK GUI SBAU368 FEBRUARY 2021 Submit Document Feedback TLA2024EVM PDK User s Guide 13 Copyright 2021 Texas Instruments Incorporated ...

Страница 14: ...I An EEPROM on the TLA2024EVM PDK contains information specific to the EVM connected A properly connected and identified EVM displays as Device Connected with a green indicator and at the bottom as Hardware Connected in the status ribbon Figure 5 3 TLA2024 EVM Connected GUI TLA2024EVM PDK GUI www ti com 14 TLA2024EVM PDK User s Guide SBAU368 FEBRUARY 2021 Submit Document Feedback Copyright 2021 Te...

Страница 15: ...be necessary if an important firmware change is required If reprogramming the PAMBoard firmware becomes necessary an additional pop up box displays with information on the programming procedure By using the Save data option the Analysis Data is saved to a comma separated values CSV formatted file for further analysis using external programs The data can also be loaded back into the GUI for further...

Страница 16: ...previously saved configuration can be loaded back into the GUI again when testing various device configurations by using Load register settings Figure 5 6 Register Data Options TLA2024EVM PDK GUI www ti com 16 TLA2024EVM PDK User s Guide SBAU368 FEBRUARY 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Страница 17: ...tion displays the current COM port settings in a pop up dialog with options to change the COM port or reconfigure the settings as necessary Figure 5 7 Options Menu Figure 5 8 Serial Port Configuration Settings www ti com TLA2024EVM PDK GUI SBAU368 FEBRUARY 2021 Submit Document Feedback TLA2024EVM PDK User s Guide 17 Copyright 2021 Texas Instruments Incorporated ...

Страница 18: ...g at the bottom of the GUI The Log pane displays the same information as when clicking the book icon in the status ribbon Figure 5 9 Tools Menu Figure 5 10 Logs Display TLA2024EVM PDK GUI www ti com 18 TLA2024EVM PDK User s Guide SBAU368 FEBRUARY 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Страница 19: ...he E2E forum View README md displays pertinent startup information not necessarily included in this guide About displays specific information regarding the GUI and EVM hardware Figure 5 11 Help Menu www ti com TLA2024EVM PDK GUI SBAU368 FEBRUARY 2021 Submit Document Feedback TLA2024EVM PDK User s Guide 19 Copyright 2021 Texas Instruments Incorporated ...

Страница 20: ...d hardware is found by selecting About from the drop down Help menu Figure 5 12 Help Information About TLA2024EVM PDK GUI www ti com 20 TLA2024EVM PDK User s Guide SBAU368 FEBRUARY 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Страница 21: ...s to the PC and the COM port used The status ribbon displays regardless of the navigation page selected 5 2 2 Chart The Chart icon selects the available charting options for displaying conversion data The data options include a Time Domain Histogram and FFT displays The Chart tab allows configuration of the Data Capture for the TLA2024 At the upper right of the capture window is the setting for th...

Страница 22: ...he right side of the chart window is a slide out menu where configuration settings are displayed and changes can be made for data collection 5 2 2 1 Channel Statistics When data collection completes statistical information displays along with the charted data The statistical display for Time Domain and Histogram are the same but the FFT statistics differ As the TLA2024 is primarily a DC measuremen...

Страница 23: ...ntal power Noise floor SNR or signal to noise ratio SFDR or spurious free dynamic range THD or total harmonic distortion SINAD or signal to noise and distortion ENOB or effective number of bits Harmonics www ti com TLA2024EVM PDK GUI SBAU368 FEBRUARY 2021 Submit Document Feedback TLA2024EVM PDK User s Guide 23 Copyright 2021 Texas Instruments Incorporated ...

Страница 24: ...er codes or volts with the selection in a drop down menu The Y axis drop down menu displays next to the charting icons near the right side of the GUI below the statistics Figure 5 17 Time Domain Plot TLA2024EVM PDK GUI www ti com 24 TLA2024EVM PDK User s Guide SBAU368 FEBRUARY 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Страница 25: ...the plot Bin Size selecting the number of unique codes to include in each bin Figure 5 18 Histogram Plot The Bins and Bin Size are selectable options and display next to the charting icons near the right side of the GUI below the statistics www ti com TLA2024EVM PDK GUI SBAU368 FEBRUARY 2021 Submit Document Feedback TLA2024EVM PDK User s Guide 25 Copyright 2021 Texas Instruments Incorporated ...

Страница 26: ...ut voltages However a low frequency AC signal can be analyzed and the FFT plot displayed Figure 5 19 FFT Plot TLA2024EVM PDK GUI www ti com 26 TLA2024EVM PDK User s Guide SBAU368 FEBRUARY 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Страница 27: ... from the TLA2024 device The Conversion register contains the value of the last 12 bit conversion result read from the TLA2024 The conversion data are 12 bit left justified in the 16 bit register As the TLA2024 is a programmable device the Config register is the only programmable register and is 16 bits in length A number of control buttons and drop down menus exist to configure the Register Map r...

Страница 28: ...on register Configuration of the TLA2024 device is accomplished using the drop down menu and click options shown in the Field View on the right side of the GUI window It is also possible to double click on the various bits to toggle the bit settings As the bit settings change the Field View options will also change to correspond to the selection Figure 5 22 TLA2024 Configuration TLA2024EVM PDK GUI...

Страница 29: ...s The startup default control values are to Immediately Write the Config register when options change The Auto Read register function is turned off Figure 5 23 Register Read and Write Controls www ti com TLA2024EVM PDK GUI SBAU368 FEBRUARY 2021 Submit Document Feedback TLA2024EVM PDK User s Guide 29 Copyright 2021 Texas Instruments Incorporated ...

Страница 30: ... contents is a reduction in USB communication between the TLA2024EVM PDK and the GUI The registers can be read automatically from the TLA2024 at a variety of intervals from once a second to as fast as possible The intervals can be seen and selected by using the Auto Read drop down menu selection The READ REGISTER and READ ALL REGISTER button options are only enabled when the Auto Read selection is...

Страница 31: ... down menu selection is for a Deferred Write then the write register buttons WRITE REGISTER and WRITE ALL REGISTERS become enabled Similar to the functionality of the read register buttons the WRITE REGISTER button will write the configuration for the currently selected register When selecting the WRITE ALL REGISTERS button all configurable registers will be written Figure 5 25 Register Write Opti...

Страница 32: ...so displayed as text The icon shows as a connected link when the EVM and GUI are connected and appears as a broken link when not connected Clicking on the icon will attempt to connect if disconnected and will disconnect if the EVM is currently connected The last icon shows as an arrow and clicking the icon toggles the display of connection details Figure 5 26 Status Information TLA2024EVM PDK GUI ...

Страница 33: ... TSW 103 07 G S Samtec R1 R2 R3 R4 4 RES 499 1 0 1 W 0603 RC0603FR 07499RL Yageo R7 R10 R13 3 RES 10 k 5 0 1 W AEC Q200 Grade 0 0402 ERJ 2GEJ103X Panasonic R8 R9 R11 R12 4 RES 4 70 k 1 0 1 W 0402 ERJ 2RKF4701X Panasonic SH J1 1 Shunt 100mil Gold plated Black SNT 100 BK G Samtec TP1 TP2 TP3 3 Test Point Multipurpose Black TH 5011 Keystone U1 1 12 Bit 3300SPS 4 Ch Delta Sigma ADC w PGA Oscillator Vo...

Страница 34: ... TLA2024EVM PDK PCB layout Figure 6 1 Top Silkscreen Figure 6 2 Top Layer Bill of Materials Printed Circuit Board Layout and Schematics www ti com 34 TLA2024EVM PDK User s Guide SBAU368 FEBRUARY 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Страница 35: ...Figure 6 4 Bottom Silkscreen www ti com Bill of Materials Printed Circuit Board Layout and Schematics SBAU368 FEBRUARY 2021 Submit Document Feedback TLA2024EVM PDK User s Guide 35 Copyright 2021 Texas Instruments Incorporated ...

Страница 36: ...30 J1 J3 SSQ 110 03 T D GPIO 31 GPIO 32 GPIO 33 GPIO 34 Timer_Cap GPIO 35 Timer_Cap GPIO 36 PWM GPIO 37 PWM GPIO 38 PWM GPIO 39 PWM GPIO 40 GPIO 11 SPI_CS GPIO 12 SPI_CS GPIO 13 SPI_MISO 14 SPI_MOSI 15 RST 16 GPIO 17 GPIO 18 PWM GPIO 19 GND 20 J2 J4 SSQ 110 03 T D GND ALERT RDY SCL_LP SDA_LP A0 1 A1 2 A2 3 VSS 4 SDA 5 SCL 6 WP 7 VCC 8 U3 BR24G32FVT 3AGE2 LP_3V3 GND SCL_LP SDA_LP GND 0 1uF C12 10k ...

Страница 37: ...s are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for and you wi...

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