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Texas Instruments DAC161S055EVM User manual

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User's Guide
SNAU171–August 2014
DAC161S055EVM Booster Pack User’s Guide
The DAC161S055EVM is a demonstration kit for the DAC161S055, a 16-bit, 1-channel, 5µs settling time,
Serial Interface digital-to-analog converter. The EVM allows users to evaluate the operation and
performance of the DAC161S055 data converter. The EVM features a small size layout that directly
connects onto the MSP430F5529 LaunchPad board.
Topic ........................................................................................................................... Page
1 DAC161S055 BoosterPack Components................................................................. 2
2 Software Installation............................................................................................. 3
3 DAC161S055 BoosterPack Setup and Operation...................................................... 7
4 Board Layout..................................................................................................... 10
5 Bill of Materials.................................................................................................. 14
1
SNAU171–August 2014 DAC161S055EVM Booster Pack User’s Guide
Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated
4.096-V Reference Voltage
LM4120 (U1)
DAC Output Connector (J1)
16-bit 1-Channel DAC
DAC161S055 (U2)
MSP430 LaunchPad
Connector (JB, JD)
Voltage Reference
Select Jumper (JVA)
MZB Select Jumper
MSP430 LaunchPad
Connector (JA, JC)
DAC161S055 BoosterPack Components
www.ti.com
1 DAC161S055 BoosterPack Components
Figure 1. DAC161S055EVM Evaluation Board
Table 1. Device and Package Configurations
DEVICE IC PACKAGE
U1 LM4120IM5-4.1 SOT-23
U2 DAC161S055CISQ WQFN-16
2DAC161S055EVM Booster Pack User’s Guide SNAU171–August 2014
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Software Installation
2 Software Installation
2.1 Graphical User Interface (GUI)
To use the DAC161S055EVM, install the DAC161S055 software:
1. The DAC161S055 software is located on the product page. Go to the product page, scroll down to the
software section, and download the latest evaluation software.
2. Unzip the downloaded file into a known directory, and run the “setup.exe” file located in [Unzip
location]\ DAC161S055\ GUI\ DAC161S055_Installer.zip\DAC161S055_Installer\Installer\Volume.
Follow the popup-screen instructions by clicking the Next button to install the software.
Figure 2. DAC161S055 Installation Directory
3. When the installation is finished, click Finish button.
3
SNAU171–August 2014 DAC161S055EVM Booster Pack User’s Guide
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Software Installation
www.ti.com
2.2 LaunchPad Firmware Upgrade
The MSP430F5529 LaunchPad board can purchased at www.ti.com/tool/msp-exp430f5529lp.
2.2.1 MSP430 Firmware Upgrade Application Installation
1. Navigate to www.ti.com/tool/msp430usbdevpack, and click Get Software.
2. Scroll down to the end of the page to find the USB Collateral Installers section.
3. Click on MSP430_USB_Firmware_Upgrade_Example-x-x-x-Setup.exe to download the tool; the page
redirects to a submission form.
4. Complete the information requested and submit the form; if approved, a download button appears.
5. Run the installation file and follow the on-screen instructions until completion. When asked about the
setup type, select Application Only. Click Finish when done.
2.2.2 Firmware Upgrade
1. Open the MSP430 USB Firmware Upgrade application. By default, the application can be launched
from Start >> Programs >> Texas Instruments >> MSP430 USB Firmware Upgrade Example.
2. Click Next to proceed on the first prompt; read and accept the license agreement, and click Next to
continue.
Figure 3. USB Firmware Upgrade Window
3. Enable the Select Firmware button and browse to open the downloaded firmware “dac161s055_fw-
v0.89.txt”.
4. Press the BSL button on the MSP430 LaunchPad and connect to the PC with a USB cable; if detected,
the text on the Firmware Upgrade tool will change from No device connected to Found 1 device.
5. Click the Upgrade Firmware button to program the LaunchPad. Close the application when done.
4DAC161S055EVM Booster Pack User’s Guide SNAU171–August 2014
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Software Installation
2.3 Update USB Driver
1. Before launching the DAC161S055 software, connect the DAC161S055EVM board to a USB port of
your PC. Go to Device Manager and find “MSP43-USB Example”. Right-click and select Update Driver
Software.
Figure 4. Driver Not Installed
2. On the next screen, select the Browse my computer for driver software option and go to the directory
of your install files and select the TI_ADC_DAC_EVMs_Driver.inf file.
3. If prompted with a warning window, select Install this Driver Anyway. Close the installation window
when it is done. The device manager should now display a TI_ADC_DAC_EVMs item followed by a
COM port number.
Figure 5. Driver Authentication Warning
5
SNAU171–August 2014 DAC161S055EVM Booster Pack User’s Guide
Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated
Software Installation
www.ti.com
Figure 6. Driver Installed
6DAC161S055EVM Booster Pack User’s Guide SNAU171–August 2014
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DAC161S055 BoosterPack Setup and Operation
3 DAC161S055 BoosterPack Setup and Operation
3.1 Connections
1. Attach the DAC161S055EVM BoosterPack onto the MSP430 LaunchPad using connectors, JA, JB,
JC, and JD. The proper orientation of the LaunchPad and DAC161S055EVM is when the text
“LaunchPad” and “2013 TI” are in the same direction.
Figure 7. DAC161S055EVM Attached to MSP430
2. Connect the USB cable from the LaunchPad to the PC.
7
SNAU171–August 2014 DAC161S055EVM Booster Pack User’s Guide
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DAC161S055 BoosterPack Setup and Operation
www.ti.com
3.2 Launching the Software
1. The DAC161S055 GUI software can be run by clicking on Start >> All Program >> DAC161S055. After
running the GUI, select DAC161S055.
Figure 8. Part Select
2. GUI descriptions:
• Command[7:0]: These 8 bits control different write modes, channel selects, and special operation
modes. See the DAC161S055 data sheet for more details.
• Data[15:0]: These 16 bits are for setting the DAC output codes or channel outputs.
Figure 9. Selectable Fields in GUI
3. Quick start:
(a) Write 01 to Command[7:0] and press the Write button to assert the CLR command. This command
8DAC161S055EVM Booster Pack User’s Guide SNAU171–August 2014
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DAC161S055 BoosterPack Setup and Operation
clears the internal registers and returns the part to its power-up default state. The Data[15:0] field
are don’t cares when the CLR command is written.
(b) Write 10 to Command[7:0] which asserts the WRUP command. The WRUP command will update
the DACREG and PREREG registers regardless of the WRITE BLOCK or WRITE THROUGH
settings. Next specify 8000 to Data[15:0] to set the 16-bit DAC to output Vref/2. Next press the
Write button. The output should be Vref/2 or 2.049 V.
NOTE: The DAC161S0855 is a 1-channel device, but its register map allows up to 8 channels to be
selected. The part only outputs to channel 0.
9
SNAU171–August 2014 DAC161S055EVM Booster Pack User’s Guide
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Board Layout
www.ti.com
4 Board Layout
Figure 10. Top Assembly Layer
Figure 11. Top Layer Routing
10 DAC161S055EVM Booster Pack User’s Guide SNAU171–August 2014
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Copyright © 2014, Texas Instruments Incorporated