Texas Instruments THVD1454EVM User Manual

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EVM User's Guide: THVD1454EVM

THVD1454EVM User's Guide

This document is the EVM User's guide for the THVD1454EVM which provides a quick way to evaluate the TI

THVD1454, a half duplex RS-485 transceiver with selectable data rate and switchable integrated termination

resistors, in the VSON (DRC) package.

Introduction.............................................................................................................................................................................2

2 Board

Description...................................................................................................................................................................4

3 Board Component

Overview..................................................................................................................................................4

4 Powering the

Board................................................................................................................................................................6

5 Operation of

THVD1454EVM..................................................................................................................................................7

5.1 Default Operation...............................................................................................................................................................

5.2 Potential Modifications.......................................................................................................................................................

6 Design Documents.................................................................................................................................................................

6.1

Schematics.........................................................................................................................................................................9

6.2

Layout...............................................................................................................................................................................11

6.3 Bill of

Materials.................................................................................................................................................................13

7 References............................................................................................................................................................................

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SLLU365 - JANUARY 2023

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THVD1454EVM User's Guide

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Page 1: Table Of Contents
THVD1454EVM User's Guide ABSTRACT This document is the EVM User’s guide for the THVD1454EVM which provides a quick way to evaluate the TI THVD1454, a half duplex RS-485 transceiver with selectable data rate and switchable integrated termination resistors, in the VSON (DRC) package.
Page 2: Introduction
Introduction www.ti.com 1 Introduction About This Manual Figure 1-1. Top View of THVD1454EVM THVD1454EVM User's Guide SLLU365 – JANUARY 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 3 Introduction Figure 1-2. Bottom View of THVD1454EVM Information About Cautions and Warnings The information in the warning statement is provided for personal protection and the information in the caution statement is provided to protect the equipment from damage. Read each caution and warning statement carefully.
Page 4: Board Description
Common Mode Voltage Connection Points Located at J11 and J12 3 Board Component Overview The THVD1454EVM is ready to operate directly out of box with a THVD1454 installed at U1. All the Signal and Power Jumpers/Inputs (J1 – J12) come pre-installed on board. See...
Page 5 Reception at "R" pin LED Indicator For Data Custom "Green" Transmission at "D" pin LED Indicator for Board Comment "Blue" Power Main EVM IC SLLU365 – JANUARY 2023 THVD1454EVM User's Guide Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 6: Powering The Board
4 Powering the Board Powering the THVD1454EVM is a quick process. To power on the board have top side of board facing upwards with J5 at the top of the EVM. From left to right the power terminal pins of J5 are connected to Earth, GND, and VCC respectively - this is also noted on the EVM.
Page 7: Operation Of Thvd1454Evm
J6, which with the addition of two shunts can control the Slew Rate Control (SLR) feature and Integrated Termination (TERM) features. SLLU365 – JANUARY 2023 THVD1454EVM User's Guide Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 8 The power testing can be expanded with the addition of common mode loading resistances R19 and R20. THVD1454EVM User's Guide SLLU365 – JANUARY 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 9: Design Documents
Design Documents 6 Design Documents 6.1 Schematics Figure 6-1. Schematic - No Schematic Markings SLLU365 – JANUARY 2023 THVD1454EVM User's Guide Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 10 Design Documents www.ti.com Figure 6-2. Schematic - DNI Markings Shown THVD1454EVM User's Guide SLLU365 – JANUARY 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 13: Bill Of Materials
THVD1454DRC 7 References • THVD1454 3-V to 5.5-V Half Duplex RS-485 Transceiver With Integrated 120 Ω Switchable Termination and Slew Rate Control, Data Sheet, Texas Instruments SLLU365 – JANUARY 2023 THVD1454EVM User's Guide Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
Page 14 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 15 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 16 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 17 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 18 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 19 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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