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EVM User's Guide: DAC121S101SEPEVM
DAC121S101-SEP Evaluation Module
Description
The
DAC121S101SEPEVM
platform to evaluate the functionality and
performance of the
DAC121S101-SEP
DAC121S101SEPEVM has optional circuits and
jumpers to configure the device for different
applications.
The DAC121S101-SEP device is a full-featured,
general-purpose, 12-bit voltage-output digital-to-
analog converter (DAC) that can operate from a single
2.7V to 5.5V supply and consumes just 177µA of
current at 3.6V.
Get Started
1. Order the DAC121S101SEPEVM.
2. Configure EVM jumpers.
3. Install the DAC121S101SEPEVM GUI from the
DAC121S101SEPEVM tool
SLAU934 – SEPTEMBER 2024
Submit Document Feedback
is an easy-to-use
device. The
folder.
Copyright © 2024 Texas Instruments Incorporated
4. Download the latest libraries.
5. Connect USB and external power supplies.
6. Launch the DAC121S101SEPEVM GUI.
Features
•
Configurable circuit to evaluate the DAC121S101-
SEP
•
Onboard VDD (5V) support via USB
•
Onboard precision 3V voltage regulator
•
FT4232 easily writes to the DAC using the
DAC121S101SEPEVM GUI
•
External SPI connections available
Applications
•
Satellites
–
Altitude and orbit control
–
Precision sensors
–
Motor control
DAC121S101-SEP Evaluation Module
Description
1
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Summary of Contents for Texas Instruments DAC121S101-SEP
- Page 1 • Onboard VDD (5V) support via USB • Onboard precision 3V voltage regulator The DAC121S101-SEP device is a full-featured, • FT4232 easily writes to the DAC using the general-purpose, 12-bit voltage-output digital-to- DAC121S101SEPEVM GUI analog converter (DAC) that can operate from a single •...
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Page 2: Kit Contents
The EVM is intended to provide basic functional evaluation of the device. The layout is not intended to be a model for the target circuit, nor laid out for electromagnetic compatibility (EMC) testing. The EVM consists of a printed-circuit board (PCB), which has the DAC121S101-SEP installed. 1.4 Device Information The DAC121S101 device is a full-featured, general-purpose, 12-bit voltage-output digital-to-analog (DAC) that can operate from a single 2.7V to 5.5V supply and consumes just 177µA of current. -
Page 3: Hardware Theory Of Operation
USB 5V supply. These 1.8V and 3.3V supplies are used to power the FTDI controller. The DAC121S101-SEP VA has multiple supply options. By default, VA is connected to the USB-5V supply through jumpers J6 and J8. VA can be supplied by an external power supply through banana jack J4 by removing the shunt on J6 and connecting pins 1 and 2 on J8. -
Page 4: Connector Definitions
VOUT Dedicated VOUT test point for glitch measurement Ground test point TP11 TP12 Dedicated GND test point for glitch measurements TP13 VOUT DAC121S101-SEP VOUT DAC121S101-SEP Evaluation Module SLAU934 – SEPTEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated... -
Page 5: Hardware Overview
(J5) is available for external communication. The J5 pin definitions are listed in Table 2-5. To use external communication, place a shunt on J1 to disconnect the FTDI controller from the DAC121S101-SEP. Table 2-5. Digital Header J5 Definitions Definition... -
Page 6: Software Installation
PC. When the DAC121S101SEPEVM GUI is launched, an installation dialog window opens and prompts the user to select an installation directory. If left unchanged, then the software location defaults to C:\Program Files (x86)\Texas Instruments\DAC121S101SEPEVM GUI, as shown in Figure 3-1. - Page 7 The FTDI USB drivers installation window that is automatically launched after the DAC121S101SEPEVM software installation is complete, as shown in Figure 3-2. Figure 3-2. FTDI USB Drivers SLAU934 – SEPTEMBER 2024 DAC121S101-SEP Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
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Page 8: Software Overview
3-4. After the FTDI controller is properly connected to the PC, restart the DAC121S101SEPEVM software to detect the device. Figure 3-4. FTDI Digital Controller Connection Status DAC121S101-SEP Evaluation Module SLAU934 – SEPTEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated... - Page 9 The DAC121S101SEPEVM Low Level Configuration page of the DAC121S101SEPEVM GUI is shown in Figure 3-5. This page allows direct access to the DAC register in the DAC121S101-SEP. The GUI handles page address management, allowing seamless access to the register. Directly above the Register Map section are two buttons that allow for write access to the register.
- Page 10 3.2.2.2 High Level Configuration Page The High Level Configuration page is used to set the configuration of the DAC121S101SEPEVM GUI. This page acts as a shortcut to configure the DAC121S101-SEP for basic functionality and testing. The High Level Configuration page is shown in Figure 3-6.
- Page 11 TP13 VOUT VOUT SCLK VOUT VOUT SCLK 100nF SYNC SYNC 10nF SCLK SCLK 3.3pF Digital Header SYNC SYNC DAC121S101DGKSEP Figure 4-2. DAC121S101SEPEVM DUT Schematic SLAU934 – SEPTEMBER 2024 DAC121S101-SEP Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
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Page 12: Pcb Layout
The board layout for the DAC121S101SEPEVM is shown in Figure 4-3 through Figure 4-6. Figure 4-3. DAC121S101SEPEVM PCB Top Layer Layout Figure 4-4. DAC121S101SEPEVM PCB Mid Layer 1 Layout (Ground Plane) DAC121S101-SEP Evaluation Module SLAU934 – SEPTEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated... - Page 13 Hardware Design Files Figure 4-5. DAC121S101SEPEVM PCB Mid Layer 2 Layout (Power Plane) Figure 4-6. DAC121S101SEPEVM PCB Bottom Layer Layout SLAU934 – SEPTEMBER 2024 DAC121S101-SEP Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
- Page 14 Wurth Elektronik Thermal Transfer Printable Labels, 0.650" W x PCB Label 0.650 x 0.200 LBL1 THT-14-423-10 Brady 0.200" H - 10,000 per roll inch DAC121S101-SEP Evaluation Module SLAU934 – SEPTEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
- Page 15 Multipurpose UART/MPSSE IC, VQFN-56 500mA, Low IQ, Small Size, Low Dropout DBV0005A TLV75533PDBVR Texas Instruments Regulator, DBV0005A (SOT-23-5) Crystal, 12MHz, 18pF, SMD ABM3 ABM3-12.000MHZ-B2-T Abracon Corporation SLAU934 – SEPTEMBER 2024 DAC121S101-SEP Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
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Page 16: Additional Information
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. - Page 17 STANDARD TERMS FOR EVALUATION MODULES 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.
- Page 18 www.ti.com 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.
- Page 19 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...
- Page 20 www.ti.com 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.
- Page 21 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. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2023, Texas Instruments Incorporated...
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Page 22: Important Notice
TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2024, Texas Instruments Incorporated...
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