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SLOU483 – August 2017

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Copyright © 2017, Texas Instruments Incorporated

THS3491RGT Evaluation Module

User's Guide

SLOU483 – August 2017

THS3491RGT Evaluation Module

This document provides information about the evaluation module of the amplifier under test. Additionally,
this document provides a good example of printed-circuit board (PCB) design for high-speed applications.
Remember the following points:

TI recommends initially reviewing the data sheet of the device under test.

Review the schematic and layout of the THS3491RGT EVM to determine the design techniques used
in the evaluation board.

The high-speed amplifier PCB design should be approached with care and special attention must be
provided to the board parasitic which impacts the overall system performance.

Contents

1

Introduction

...................................................................................................................

2

2

EVM Default Configuration

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3

3

Using the THS3491 EVM

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5

4

High-Speed Amplifier PCB Layout Tips

...................................................................................

6

5

EVM Hardware Description

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7

List of Figures

1

THS3491RGT EVM Default Configuration Setup Block Diagram

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3

2

Output Interface to the Measuring Instrument

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4

3

Full Schematic of the THS3491RGT EVM

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9

4

Top Components and Silk Screen Layer

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10

5

Layer 2 - GND

..............................................................................................................

10

6

Layer 3 - GND

..............................................................................................................

11

7

Layer 4 - GND/Signal

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11

8

Layer 5 - GND

..............................................................................................................

12

9

Layer 6 - GND

..............................................................................................................

12

10

Layer 7 - GND

..............................................................................................................

13

11

Bottom Components and Silk Screen Layer

............................................................................

13

List of Tables

1

THS3491RGT EVM Bill of Materials

......................................................................................

7

Trademarks

PowerPAD is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.

Содержание THS3491RGT EVM

Страница 1: ...r PCB design should be approached with care and special attention must be provided to the board parasitic which impacts the overall system performance Contents 1 Introduction 2 2 EVM Default Configura...

Страница 2: ...The EVM is ready to connect to power supplies signal source and test instruments through the use of onboard connectors The board is set up for single ended input and output operation for interfacing...

Страница 3: ...up Block Diagram 2 1 Standard Non Inverting Gain Configuration The THS3491RGT EVM default configuration is a single ended input single ended output non inverting gain of 5 from SMA input J2 to the THS...

Страница 4: ...Evaluation Module Remember the output resistor network is only present to protect the measuring instrument from being over driven by the device output for high output signal swings Desoldering the ou...

Страница 5: ...g the power supply cables to the EVM set the dual dc output power supply to 15 V Make sure the dc power supply is turned off before proceeding to the next step Connect the 15 V power supply to the Vs...

Страница 6: ...ally important for the inverting input pin A capacitance as low as 1 pF at the inverting input can significantly affect the response of the amplifier or even cause oscillation In general it is best to...

Страница 7: ...7109DG Aavid Surface mount heat sink for D2PAK Surface mount heat sink for D2PAK 10 J1 J2 J3 3 142 0701 851 Emerson Network Power Connector End launch SMA 50 ohm SMT SMA End Launch 11 J4 1 SPC15363 Te...

Страница 8: ...tor Qty Value Part Number Manufacturer Description Package Reference 25 U1 1 THS3491IRGT Texas Instruments High Voltage Low Distortion Current Feedback Amplifier RGT0016A RGT0016A 26 C9 0 100pF C0603C...

Страница 9: ...tion 9 SLOU483 August 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated THS3491RGT Evaluation Module 5 2 Schematic Figure 3 illustrates the EVM schematic Figure 3 Full S...

Страница 10: ...17 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated THS3491RGT Evaluation Module 5 3 Circuit Board Layout Figure 4 through Figure 11 illustrate the EVM PCB layout Figure 4 T...

Страница 11: ...com EVM Hardware Description 11 SLOU483 August 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated THS3491RGT Evaluation Module Figure 6 Layer 3 GND Figure 7 Layer 4 GND...

Страница 12: ...Hardware Description www ti com 12 SLOU483 August 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated THS3491RGT Evaluation Module Figure 8 Layer 5 GND Figure 9 Layer 6 G...

Страница 13: ...dware Description 13 SLOU483 August 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated THS3491RGT Evaluation Module Figure 10 Layer 7 GND Figure 11 Bottom Components and...

Страница 14: ...set forth above or credit User s account for such EVM TI s liability under this warranty shall be limited to EVMs that are returned during the warranty period to the address designated by TI and that...

Страница 15: ...the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain great...

Страница 16: ...t the EVM user guide prior to connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation even with the...

Страница 17: ...OST OF REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF...

Страница 18: ...TI Resource NO OTHER LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD...

Страница 19: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments THS3491RGTEVM...

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