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EVM User's Guide: THS3470EVM
THS3470 Evaluation Module
Description
The THS3470EVM is an evaluation module (EVM)
designed for easy measurement and setup of the
THS3470 60V, 1A, 100MHz, high-speed power
amplifier. The board features instructions to configure
input and output connections easily, simple control
interfaces for changing the functional modes of
the device, and provisions for heat sink and fan
connections.
SLOU567 – MARCH 2025
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Features
•
Easy input and output connections using 50Ohm
matched SMA connectors
•
Configurable output loading network with optional
high power load
•
Easy power mode and current limit control with
simple switches
•
Adjustable current limits with potentiometers
•
Provisions for heatink and 3-pin fan connector
THS3470EVM
Copyright © 2025 Texas Instruments Incorporated
Description
THS3470 Evaluation Module
1
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Summary of Contents for Texas Instruments THS3470EVM
- Page 1 Description EVM User's Guide: THS3470EVM THS3470 Evaluation Module Description Features The THS3470EVM is an evaluation module (EVM) • Easy input and output connections using 50Ohm designed for easy measurement and setup of the matched SMA connectors THS3470 60V, 1A, 100MHz, high-speed power •...
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Page 2: Kit Contents
THS3470EVM test board 1.3 Specification The THS3470EVM is intended to provide basic functional evaluation of the device. The THS3470EVM can be used for AC, DC, or transient measurements. By default, the inputs and outputs are terminated to 50Ohms to provide easy interfacing with 50Ohm based test equipment. The layout is designed to provide configuration flexibility while minimizing parasitics and improving heat dissipation for the best device performance. -
Page 3: Configuration Details
The default output of the THS3470EVM includes a simple series 5.1Ω isolation resistor R4 located close to the device output along with a 44.2Ω series output resistor R2 to provide a 50Ω matched impedance from the output connector J8. - Page 4 (pins 22 and 23) to automatically shut down the device if the device passes the maximum temperature threshold. Table 2-2 shows a truth table of the different power control connections on the EVM. Table 2-2. THS3470EVM Bias Control Modes PWR_CTL_1 PWR_CTL_0 Mode...
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Page 5: Quick Start Instructions
TI recommends to always use a heat sink to avoid accidental device damage. SLOU567 – MARCH 2025 THS3470 Evaluation Module Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated... -
Page 6: Using Multiple Power Supplies
EVM. Connecting the mid-point to the earth ground reference of the power supply if present is not a requirement. THS3470 Evaluation Module SLOU567 – MARCH 2025 Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated... - Page 7 3.4 TI Evaluation Setup Images Figure 3-2 Figure 3-3 show example measurement setup's for both DC and AC measurements using the THS3470 EVM. Figure 3-2. DC Measurement Setup SLOU567 – MARCH 2025 THS3470 Evaluation Module Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated...
- Page 8 Quick Start Instructions www.ti.com Figure 3-3. AC Measurement Setup THS3470 Evaluation Module SLOU567 – MARCH 2025 Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated...
- Page 9 Not in version control Assembly Variant: Sheet: warrant that this design will meet the specifications, will be suitable for your application or fit for any particular purpose, or will operate in an implementation. Texas Instruments and/or its Drawn By: File: THS3470EVM.SchDoc...
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Page 10: Pcb Layouts
Hardware Design Files www.ti.com 4.2 PCB Layouts Figure 4-2. THS3470EVM Top Layers Figure 4-3. THS3470EVM Bottom Layers THS3470 Evaluation Module SLOU567 – MARCH 2025 Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated... -
Page 11: Bill Of Materials (Bom)
1825255-8 TE Connectivity Switch, 4-Leads, VAC, TH SP3T, Body 16x6.7mm, TH SH-J1, SH-J2, Shunt, 2.54mm, Gold, Black 60900213421 Wurth Elektronik Shunt, 2.54mm, Black SH-J3 SLOU567 – MARCH 2025 THS3470 Evaluation Module Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated... -
Page 12: Additional Information
5 Additional Information 5.1 Trademarks Kapton ® is a registered trademark of DuPont Electronics, Inc. All trademarks are the property of their respective owners. THS3470 Evaluation Module SLOU567 – MARCH 2025 Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated... - Page 13 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 14 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 15 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 16 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 17 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 18: 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 © 2025, Texas Instruments Incorporated...
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