Texas Instruments AFE20408EVM User Manual
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Texas Instruments AFE20408EVM User Manual

Afe20408 evaluation module
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EVM User's Guide: AFE20408EVM
AFE20408 Evaluation Module
Description
The
AFE20408EVM
is an easy-to-use platform to
evaluate the functionality and performance of the
AFE20408
device. The AFE20408EVM has optional
circuits and jumpers to configure the device for
different applications.
The AFE20408 is a highly integrated power-amplifier
monitor and control device capable of temperature,
current, and voltage supervision. The AFE20408 bias
controller features eight digital-to-analog converters
(DAC) with programmable output ranges. The eight
gate bias outputs are switched on and off through
dedicated control pins.
Get Started
1. Order the EVM.
2. Configure EVM jumpers.
3. Install AFE20408EVM GUI from ti.com.
SLAU917 – OCTOBER 2023
Submit Document Feedback
4. Download the latest libraries.
5. Connect USB and external power supplies.
6. Launch AFE20408EVM GUI.
Features
•
Configurable circuit to evaluate the AFE20408
•
Onboard VDD (5-V) and VIO (3.3-V) support via
USB
•
Onboard VSSA and VSSB (−10.5-V or −7-V)
support
•
FT4222 easily writes to the AFE using
AFE20408EVM GUI
•
External SPI and I
Applications
•
Macro remote radio unit (RRU)
•
Active antenna system mMIMO (AAS)
•
Outdoor backhaul unit
•
Radar
Copyright © 2023 Texas Instruments Incorporated
Description
2
C connections available
AFE20408 Evaluation Module
1

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Summary of Contents for Texas Instruments AFE20408EVM

  • Page 1 Active antenna system mMIMO (AAS) 1. Order the EVM. • Outdoor backhaul unit 2. Configure EVM jumpers. • Radar 3. Install AFE20408EVM GUI from ti.com. SLAU917 – OCTOBER 2023 AFE20408 Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...

  • Page 2: Kit Contents

    Texas Instruments integrated circuits used in the assembly of the AFE20408EVM. This user's guide is available from the TI web site under literature number SLAU917. Any letter appended to the literature number corresponds to the document revision that is current at the time of the writing of this document.
  • Page 3 EVM inputs, such as the VCCA and VCCB supplies. 2.1.1 Hardware Theory of Operation The AFE20408EVM is connected to the computer through the on-board FTDI digital controller using the USB cable that is supplied with the EVM. The evaluation board features connectors and test points for all communication lines, DAC outputs, supplies, and the ADC inputs.
  • Page 4 Hardware www.ti.com 2.1.2 Jumper Definitions Table 2-1 shows the jumper definitions of the AFE20408EVM. Table 2-1. Jumper Definitions Designator Name Positions SHORT 1-2 - VCCA is grounded. VCCA-GND-VSSA SHORT 2-3 - VSSA is grounded (default). OPEN - This jumper is closed.

  • Page 5: Connector Definitions

    Apply a positive voltage to VCCB and ground VSSB for the group B DACs, and apply a negative voltage to VSSA and ground VCCA for the group A DACs. Table 2-3 shows other connector definitions for the AFE20408EVM. All of these terminal blocks are unpopulated by default. Table 2-3. Terminal Block Connector Definitions...

  • Page 6: Test Points

    Hardware www.ti.com 2.1.4 Test Points The AFE20408EVM has a variety of test points available for measuring and debugging purposes. Table 2-4 explains the purpose of each test point. Table 2-4. AFE20408EVM Test Points Test Point Description SENSE0+ High side of SENSE0 resistor...

  • Page 7: Hardware Overview

    2.2.1 Electrostatic Discharge Caution CAUTION Many of the components on the AFE20408EVM are susceptible to damage by electrostatic discharge (ESD). Customers are advised to observe proper ESD handling precautions when unpacking and handling the EVM, including the use of a grounded wrist strap at an approved ESD workstation.
  • Page 8 Hardware www.ti.com 2.2.3 SPI Configuration The following figure shows the AFE20408EVM configured for SPI communication. Figure 2-2. AFE20408EVM Configuration for SPI 2.2.4 I C Configuration The following figure shows the AFE20408EVM configured for I C communication. Figure 2-3. AFE20408EVM Configuration I AFE20408 Evaluation Module SLAU917 –...
  • Page 9 101 0100 101 0101 101 0110 101 0111 101 1000 101 1001 101 1010 101 1011 101 1100 101 1101 101 1110 101 1111 SLAU917 – OCTOBER 2023 AFE20408 Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...

  • Page 10: Software Installation

    AFE20408EVM GUI software on your PC. The software installation automatically copies the required LabVIEW ™ software files and drivers to the PC. When the AFE20408EVM GUI is launched, an installation dialog window opens and prompts the user to select an installation directory. If left unchanged, Figure 3-1 shows that the software location defaults to C:\Program Files (x86)\Texas Instruments\AFE20408EVM.
  • Page 11 The EVM software also installs the Future Technology Devices International Limited (FTDI) USB drivers using a separate executable file. Figure 3-2 shows the FTDI USB drivers installation window that is automatically launched after the AFE20408EVM software installation is complete. Figure 3-2. FTDI USB Drivers SLAU917 – OCTOBER 2023 AFE20408 Evaluation Module Submit Document Feedback Copyright ©...

  • Page 12: Software Overview

    Software www.ti.com 3.2 Software Overview This section discusses how to use the AFE20408EVM software. 3.2.1 Launching the Software If installed in the default directory, launch the AFE20408EVM software by searching for "AFE20408EVM" in the Windows ® Start menu. Figure 3-3 shows the initial configuration menu that is present when the GUI is launched.
  • Page 13 GUI that shows the hardware connection status: DEMO MODE or CONNECTED. After the FTDI controller is properly connected to the PC, restart the AFE20408EVM software to detect the device. Figure 3-4. AFE20408EVM GUI at Launch Figure 3-5.
  • Page 14 3.2.2.1 Low Level Configuration Page Figure 3-6 shows the AFE20408EVM Low Level Configuration page of the AFE20408EVM GUI. This page allows direct access to all registers on the AFE20408. The GUI handles page address management, allowing seamless access to registers.

  • Page 15: Drive Enable

    3.2.2.2 High Level Configuration Page The High Level Configuration page is used to set the configuration of the AFE20408EVM GUI. The page is comprised of two tabs: DAC Control and ADC Control. These two tabs act as shortcuts to configure the AFE20408 for basic functionality and testing.
  • Page 16 ADC Control tab from the High Level Configuration page. This tab configures and reads data from the ADC in the AFE20408. Figure 3-8. ADC Control Tab of the High Level Configuration Page AFE20408 Evaluation Module SLAU917 – OCTOBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
  • Page 17 Hardware Design Files 4 Hardware Design Files 4.1 Schematics The AFE20408EVM schematics are shown in Figure 4-1 through Figure 4-3. VCCA-GND-VSSA VCCA VSSA VLDO VNEG VLDO VCCA VSSA VNEG 487k 1.50M 10uF -7Vsel -10.5Vsel 10uF 10uF 97.6k 187k VCCB-GND-VSSA...
  • Page 18 STEST_RST USB_3.3V DEBUGGER DGND DGND USB_VBUS VBUS_DET BCD_DET UGND UGND FTDI_XSCI XSCI FTDI_XSCO XSCO FT4222HQ-D-R 1.00M 18pF 18pF Figure 4-2. AFE20408EVM FTDI Schematic VCCA VCCA ADCHV0 ADCHV0 SENSE0+ SENSE0+ 1µF SENSE0- SENSE0- DRVEN1 DRVEN1 DACA0 DACA0 1µF OUTA0 OUTA0 DACA1...
  • Page 19 Figure 4-7 show the board layout for the AFE20408EVM. Figure 4-4. AFE20408EVM PCB Top Layer Layout Figure 4-5. AFE20408EVM PCB Mid Layer 1 Layout (Ground Plane) SLAU917 – OCTOBER 2023 AFE20408 Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
  • Page 20 Hardware Design Files www.ti.com Figure 4-6. AFE20408EVM PCB Mid Layer 2 Layout (Ground Plane) Figure 4-7. AFE20408EVM PCB Bottom Layer Layout AFE20408 Evaluation Module SLAU917 – OCTOBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
  • Page 21 Hardware Design Files 4.3 Bill of Materials Table 4-1 lists the AFE20408EVM bill of materials (BOM). Table 4-1. Bill of Materials for the AFE20408EVM Package Designator Value Description Part Number Manufacturer Reference CAP, CERM, 0.1 uF, 25 V, +/- C1, C2 0.1uF...
  • Page 22 Hardware Design Files www.ti.com Table 4-1. Bill of Materials for the AFE20408EVM (continued) Package Designator Value Description Part Number Manufacturer Reference Header, 100mil, 10x2, Gold, 10x2 Header TSW-110-07-G-D Samtec Sullins Header, 2.54mm, 8x2, Gold, Header, 2.54mm, PRPC008DAAN-RC Connector 8x2, TH...
  • Page 23 Hardware Design Files Table 4-1. Bill of Materials for the AFE20408EVM (continued) Package Designator Value Description Part Number Manufacturer Reference Texas AFE20408 RHB0032E AFE20408RHB Instruments 250-mA Ultra-Low-Noise, Texas Low-IQ LDO, DBV0005A DBV0005A LP5907MFX-3.3/NOPB Instruments (SOT-23-5) USB Bridge, USB to I²C/SPI USB 2.0 I²C, SPI Interface...
  • Page 24 National Instruments Corporation. Windows ® is a registered trademark of Microsoft Corporation. All trademarks are the property of their respective owners. AFE20408 Evaluation Module SLAU917 – OCTOBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
  • Page 25 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 26 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 27 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 28 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 29 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...

  • Page 30: 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 © 2023, Texas Instruments Incorporated...

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