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User's Guide
RS485HFDPLXDRCEVM User Guide
This document is the EVM User's guide for the RS485HFDPLXDRCEVM which provides a quick way to evaluate
TI's Half Duplex RS-485 Transceivers in 10-Pin VSON (DRC) Packages such as the THVD2450DRC
!
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.
This EVM contains components that can potentially be damaged by electrostatic discharge. Always transport
and store the EVM in its supplied ESD bag when not in use. Handle using an antistatic wristband. Operate on an
antistatic work surface. For more information on proper handling, see Electrostatic Discharge (ESD).
Description...................................................................................................................................................................3
1.1 Features.............................................................................................................................................................................
1.2
Applications........................................................................................................................................................................3
1.3 Board
Description...............................................................................................................................................................3
EVM...................................................................................................................................................................7
2.1 Dual Supply Operation (Separate Digital Logic and Driver Supplies)................................................................................
EVM.................................................................................................................................................................8
3.1 Default Operation...............................................................................................................................................................
3.3 Potential Modifications for Differntial Pins........................................................................................................................
4 Schematic..............................................................................................................................................................................
5 Layout....................................................................................................................................................................................
6 Bill of Materials.....................................................................................................................................................................
Figure 3-1. Jumper, Header Configuration Map..........................................................................................................................
Figure 4-1. Schematic - DNI Components Shown.....................................................................................................................
Figure 5-1. 3D View - Top..........................................................................................................................................................
Bottom.....................................................................................................................................................14
Figure 5-3. PCB Top Layer........................................................................................................................................................
Layer...................................................................................................................................................16
SLLU352 - DECEMBER 2022
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ABSTRACT
Caution
Table of Contents
Pins....................................................................................................................9
List of Figures
Marked...............................................................................................................12
Copyright © 2022 Texas Instruments Incorporated
Table of Contents
Read the user's guide before use
RS485HFDPLXDRCEVM User Guide
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Summary of Contents for Texas Instruments RS485HFDPLXDRCEVM
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Page 1: Table Of Contents
User’s Guide RS485HFDPLXDRCEVM User Guide ABSTRACT This document is the EVM User’s guide for the RS485HFDPLXDRCEVM which provides a quick way to evaluate TI’s Half Duplex RS-485 Transceivers in 10-Pin VSON (DRC) Packages such as the THVD2450DRC Caution Read the user's guide before use 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. - Page 2 Table 3-2. Modifications For Single Ended Pins.......................... Table 3-3. Modifications for Differential Pins..........................10 Table 6-1. Bill of Materials................................17 Trademarks All trademarks are the property of their respective owners. RS485HFDPLXDRCEVM User Guide SLLU352 – DECEMBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
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Page 3: Board Description
• Video surveillance 1.3 Board Description The RS485HFDPLXDRCEVM is ready to operate directly out of box with a THVD2450DRC installed at U1. All the signal and power jumpers/Inputs (J1 – J15) come pre-installed on board. Please see Table 1-1 through Table for description for pads on the board, and to determine if it is pre-installed by default. -
Page 4: Table 1-2. Resistor Pad Descriptions
Current Limiting Resistor 0603 for VCC LED (D3) for Diode 120ΩTermination Resistor 0805 Needed for RS-485 applications 0 Ω Series connection 0603 Resistor “B” Line RS485HFDPLXDRCEVM User Guide SLLU352 – DECEMBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 5: Table 1-3. Capacitor Pad Descriptions
100 nF | 25 V Decoupling 0603 “A” Line Common Mode Capacitor Decoupling Capacitor 100 nF | 25 V Decoupling 0603 “B” Line Common Mode Capacitor Decoupling Capacitor SLLU352 – DECEMBER 2022 RS485HFDPLXDRCEVM User Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 6: Table 1-4. Led Pad Descriptions
Please see section "Powering The EVM" for information on power supplies and operational modes of the board respectively. RS485HFDPLXDRCEVM User Guide SLLU352 – DECEMBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 7: Powering The Evm
Powering the board is like single supply option. J5 and J6 have the same pin orientation – from left to right it is the EARTH pin, GND pin, and voltage supply pin. Attach VL power source to J5 and VCC power source to J6. SLLU352 – DECEMBER 2022 RS485HFDPLXDRCEVM User Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 8: Operating The Evm
A summary table of component configuration in Table 3-1 is shown below Figure 3-1. Figure 3-1. Jumper, Header Configuration Map RS485HFDPLXDRCEVM User Guide SLLU352 – DECEMBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 9: Potential Modifications For Single Ended Pins
Pull Up Resistor Pad J3 / EN2 Pull Down Resistor Pad J4 / D Pull Up Resistor Pad J4 / D Pull Down Resistor Pad SLLU352 – DECEMBER 2022 RS485HFDPLXDRCEVM User Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 10: Potential Modifications For Differntial Pins
Common Mode Resistor to “A” J12 and J14 / Common Mode on “B” Common Mode Resistor to “B” N/A / A and B Termination Capacitor Pad RS485HFDPLXDRCEVM User Guide SLLU352 – DECEMBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 11: Schematic
Schematic 4 Schematic Figure 4-1. Schematic - DNI Components Shown SLLU352 – DECEMBER 2022 RS485HFDPLXDRCEVM User Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 12: Figure 4-2. Schematic With Dni Components
Schematic www.ti.com Figure 4-2. Schematic with DNI Components Marked RS485HFDPLXDRCEVM User Guide SLLU352 – DECEMBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 13: Layout
Layout 5 Layout Figure 5-1. 3D View - Top SLLU352 – DECEMBER 2022 RS485HFDPLXDRCEVM User Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 14: Figure 5-2. 3D View - Bottom
Layout www.ti.com Figure 5-2. 3D View - Bottom RS485HFDPLXDRCEVM User Guide SLLU352 – DECEMBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 15: Figure 5-3. Pcb Top Layer
Layout Figure 5-3. PCB Top Layer SLLU352 – DECEMBER 2022 RS485HFDPLXDRCEVM User Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 16: Figure 5-4. Pcb Bottom Layer
Layout www.ti.com Figure 5-4. PCB Bottom Layer RS485HFDPLXDRCEVM User Guide SLLU352 – DECEMBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 17: Bill Of Materials
J8, J9, J12, J13, J14 Brady THT-14-423-10 LBL1 Vishay-Dale RCS06030000Z0EA R1, R4, R7, R10, R18, R19 Vishay-Dale CRCW06031K00JNEA R3, R13, R16 Panasonic ERJ-P06J121V Texas Instruments THVD2450VDRC SLLU352 – DECEMBER 2022 RS485HFDPLXDRCEVM User Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... - Page 18 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 19 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 20 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 21 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 22 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 © 2019, Texas Instruments Incorporated...
- Page 23 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 © 2022, Texas Instruments Incorporated...
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