Texas Instruments THVD1424 User Manual Download Page 6

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Table 3-1. Component Overview (continued)

Jumper ID

Function

Package

Comment

Installed?

Pull-Up Resistor

0603

N/A

Pull-Down Resistor

0603

N/A

0 Ohm Series Resistor

0603

N/A

Pull-Up Resistor

0603

N/A

Pull-Down Resistor

0603

N/A

R10

0 Ohm Series Resistor

0603

N/A

R11

Pull-Up Resistor

0603

N/A

R12

Pull-Down Resistor

0603

N/A

R13

LED Current Limiting
Resistor

0603

N/A

R14

GND to EARTH Resistor

0603

N/A

R15

GND to EARTH Resistor

0603

N/A

R16

LED Current Limiting
Resistor

0603

N/A

R17

0 Ohm Series Resistor

0603

N/A

R18

0 Ohm Series Resistor

0603

N/A

R19

“A” Common Mode
Resistor

0603

Must be >= 375 Ohms if
Installed

R20

“B” Common Mode
Resistor

0603

Must be >= 375 Ohms if
Installed

R21

0 Ohm Series Resistor

0603

N/A

R22

0 Ohm Series Resistor

0603

N/A

R23

“Y” Common Mode
Resistor

0603

Must be >= 375 Ohms if
Installed

R24

“Z” Common Mode
Resistor

0603

Must be >= 375 Ohms if
Installed

R25

External RX Termination

0805

Used for Short Bus Power
Consumption Test

R26

External TX Termination

0805

Used for Short Bus Power
Consumption Test

Capacitor ID

Function

Package

Comment

Installed?

Capacitive Loading for “R”
pin

0603

N/A

VL Supply Decoupling
Cap

0805

N/A

VL Supply Decoupling
Cap

0805

N/A

VL Supply Decoupling
Cap

0805

N/A

VL Supply Decoupling
Cap

0805

N/A

VCC Supply Decoupling
Cap

0805

N/A

VCC Supply Decoupling
Cap

0805

N/A

VCC Supply Decoupling
Cap

0805

N/A

VCC Supply Decoupling
Cap

0805

N/A

C10

VCC Supply Decoupling
Cap

0603

HF Decoupling – Close to
IC Package

Board Description

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THVD1424 Evaluation Module (EVM) User Guide

SLLU356 – SEPTEMBER 2022

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Summary of Contents for THVD1424

Page 1: ...3 1 Board Component Overview 5 3 1 1 Powering the Boarde 7 3 1 1 1 Single Supply Operation 7 3 1 1 2 Dual Supply Operation Separate Digital Logic and Driver supplies 8 3 1 1 3 Default Operation Mode 8 3 1 1 4 Single Ended Bus Modification Operational Modes 10 4 Design Documents 11 4 1 Schematics 11 4 2 Board Layout 13 4 3 Bill Of Materials 14 5 Revision History 14 Trademarks All trademarks are the...

Page 2: ...e describes the THVD1424EVM and its intended use Figure 1 1 Top Side View of THVD1424EVM Introduction www ti com 2 THVD1424 Evaluation Module EVM User Guide SLLU356 SEPTEMBER 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Page 3: ...igure 1 2 Bottom Side View of THVD1424EVM www ti com Introduction SLLU356 SEPTEMBER 2022 Submit Document Feedback THVD1424 Evaluation Module EVM User Guide 3 Copyright 2022 Texas Instruments Incorporated ...

Page 4: ... 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 Information on Cautions and Warnings www ti com 4 THVD1424 Evaluation Module EVM User Guide SLLU356 SEPTEMB...

Page 5: ...2 Header N A Y J3 DE Pin Input 4x2 Header N A Y J4 D Pin Input 4x2 Header N A Y J5 VL Terminal Terminal Block N A Y J6 VCC Terminal Terminal Block N A Y J7 VL to VCC Jumper 2x1 Header N A Y J8 Control Signal Jumper 10x2 Header N A Y J9 RX Common Mode Input 4x1 Header N A Y J10 A Line Common Mode Input 4x1 Header N A Y J11 B Line Common Mode Input 4x1 Header N A Y J12 RX Header 1 4x1 Header Between...

Page 6: ...0 Ohm Series Resistor 0603 N A Y R23 Y Common Mode Resistor 0603 Must be 375 Ohms if Installed N R24 Z Common Mode Resistor 0603 Must be 375 Ohms if Installed N R25 External RX Termination 0805 Used for Short Bus Power Consumption Test N R26 External TX Termination 0805 Used for Short Bus Power Consumption Test N Capacitor ID Function Package Comment Installed C1 Capacitive Loading for R pin 0603 ...

Page 7: ...1 Single Supply Operation The THVD1424 has both a VCC pin used for the RS 485 bus pins and VL pin Used for console facing pins In single supply operation mode for the THVD1424 the VL pin should be shorted to VCC by shorting the J7 header pins so that the digital logic circuits connected to the Logic supply are properly powered Table 3 2 Single Supply Operation Configuration Table Component ID Comm...

Page 8: ... can operate the THVD1424 as a full or half duplex RS 485 transceiver The devices pins can be broken down into 4 distinct groups single ended communication pins differential communication pins power pins and control pins Power pins are discussed above in the previous section section 3 3 details below for the other 3 categories The single ended communication pins are to be connected directly throug...

Page 9: ... Low Full Duplex Mode TERM RX J8 11 and J8 12 Hi A B Termination Enabled TERM RX J8 11 and J8 12 Low A B Termination Disabled SLR J8 15 and J8 16 Hi 500Kbps Mode SLR J8 15 and J8 16 Low 20Mbps Mode Finally the last group of signals are the differential bus pins A B Y and Z A and B are connected at terminal J14 with Y and Z at terminal J17 In Half Duplex Mode Y and Z are both the TX and RX connecti...

Page 10: ...applications as well as a 0603 sized pad to ground for a capacitive load in case testing requires capacitive loading on the R pin A summary of possible single ended signal pathway modifications on the EVM are in Table 3 5 Table 3 5 Single Ended Pins Modification Table Associated Jumper Signal Pad ID Comment J1 R R2 Pull Up Resistor Pad J1 R C1 Capacitive Load Pad J2 RE R5 Pull Up Resistor Pad J2 R...

Page 11: ... 1 Schematics Figure 4 1 Generic THVD1424EVM Schematic www ti com Design Documents SLLU356 SEPTEMBER 2022 Submit Document Feedback THVD1424 Evaluation Module EVM User Guide 11 Copyright 2022 Texas Instruments Incorporated ...

Page 12: ... 2 THVD1424EVM Schematic Out of Box Set Up Design Documents www ti com 12 THVD1424 Evaluation Module EVM User Guide SLLU356 SEPTEMBER 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Page 13: ...1424EVM Top Layer Layout Figure 4 4 THVD1424EVM Bottom Layer Layout www ti com Design Documents SLLU356 SEPTEMBER 2022 Submit Document Feedback THVD1424 Evaluation Module EVM User Guide 13 Copyright 2022 Texas Instruments Incorporated ...

Page 14: ...4 4 Phoenix Contact 1725669 J5 J6 J14 J17 4 3M 961102 6404 AR J7 1 Samtec SSQ 110 23 F D J8 1 Wurth Elektronik 61300411121 J9 J10 J11 J12 J13 J15 J16 J18 J19 J20 10 Brady THT 14 423 10 LBL1 1 Vishay Dale RCS06030000Z0EA R1 R4 R7 R10 R17 R18 R21 R22 8 Vishay Dale CRCW06031K00JNEA R3 R13 R16 3 Texas Instruments THVD1424RGT U1 1 5 Revision History NOTE Page numbers for previous revisions may differ f...

Page 15: ...other than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control techniques are used to the extent TI deems necessary TI does not test all parameters of each EVM User s claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects...

Page 16: ... These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation...

Page 17: ...y for convenience and should be verified by User 1 Use EVMs in a shielded room or any other test facility as defined in the notification 173 issued by Ministry of Internal Affairs and Communications on March 28 2006 based on Sub section 1 1 of Article 6 of the Ministry s Rule for Enforcement of Radio Law of Japan 2 Use EVMs only after User obtains the license of Test Radio Station as provided in R...

Page 18: ... any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electrical shock hazard User assumes all responsibility and liability for any improper or unsafe handling or use of the EVM by User or its employees affiliates contractors or designees 4 4 User assumes all...

Page 19: ...OR DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthermore no return of EVM s will be accepted if the package has been opened and no return of the EVM s will be accepted if they are damaged or otherwise not in a resalable condition If User feels it has...

Page 20: ...o change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for and you will fully indemn...

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