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1

SCPU039 – October 2018

Submit Documentation Feedback

Copyright © 2018, Texas Instruments Incorporated

PCA9306 I

2

C Buffer Evaluation Module

User's Guide

SCPU039 – October 2018

PCA9306 I

2

C Buffer Evaluation Module

Contents

1

Introduction

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2

1.1

Overview

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2

1.2

EVM Features

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2

2

EVM Hardware Block Diagram and Images

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3

3

Hardware Description

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5

4

Layout

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6

4.1

Setup

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7

5

Bill of Materials (BOM)

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8

List of Figures

1

PCA9306EVM

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2

2

Block level diagram of PCA9306EVM in system

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3

3

PCA9306EVM Schematic

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4

4

PCA9306EVM test points, devices, resistors, and capacitor map.

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5

5

PCA9306EVM Top Layout

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6

6

PCA9306EVM Bottom Layout

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6

7

Computer connected to microcontroller using PCA9306EVM to translate and connect to TMP102 I

2

C

sensor.

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7

List of Tables

1

Bill of Materials PCA9306EVM

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8

Trademarks

All trademarks are the property of their respective owners.

Содержание PCA9306

Страница 1: ...ardware Description 5 4 Layout 6 4 1 Setup 7 5 Bill of Materials BOM 8 List of Figures 1 PCA9306EVM 2 2 Block level diagram of PCA9306EVM in system 3 3 PCA9306EVM Schematic 4 4 PCA9306EVM test points devices resistors and capacitor map 5 5 PCA9306EVM Top Layout 6 6 PCA9306EVM Bottom Layout 6 7 Computer connected to microcontroller using PCA9306EVM to translate and connect to TMP102 I2 C sensor 7 L...

Страница 2: ...on I2 C buffer performance application notes and the data sheet see www ti com I2C 1 1 Overview The PCA9306 is a dual channel bidirectional translator intended for I2C bus and SMBus PMBus systems The PCA9306 provides bidirectional level shifting between two voltage nodes Figure 1 shows the PCA9306EVM Figure 1 PCA9306EVM 1 2 EVM Features This EVM has the following features VDPU1 input voltage range...

Страница 3: ...uation Module 2 EVM Hardware Block Diagram and Images The PCA9306EVM is designed to perform voltage level translation between two buses The two voltage nodes are voltage device pull up 1 VDPU1 and voltage device pull up 2 VDPU2 The EVM divides the buses into BUS1 and BUS2 All the pull ups and capacitive loads are reference to the bus they are used on for example resistor pull up 1 RPU1 is on BUS1 ...

Страница 4: ...dware Block Diagram and Images www ti com 4 SCPU039 October 2018 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated PCA9306 I2 C Buffer Evaluation Module Figure 3 PCA9306EVM Schematic ...

Страница 5: ...e user to disable the translator 3 Test points for SCL1 and SDA1 on BUS1 side of translator which is referenced to VDPU1 4 Test points for SCL2 and SDA2 on BUS2 side of translator which is referenced to VDPU2 5 Footprint for additional pullup resistors R6 and R8 on SDA2 and SCL2 which allows increasing pullup strength by placing a resistor in parallel with the 10k already placed on the board R5 an...

Страница 6: ...18 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated PCA9306 I2 C Buffer Evaluation Module 4 Layout Figure 5 and Figure 6 show the PCB layout images Figure 5 PCA9306EVM Top Layout Figure 6 PCA9306EVM Bottom Layout ...

Страница 7: ...voltage level translation Figure 7 shows an example configuration using a computer with a microcontroller using the PCA9306EVM to translator SCL and SDA to the TMP102 temp sensing I2 C slave device The lines in the diagram represent wires used to perform interconnections between the PCA9306EVM the Master microcontroller and the slave TMP102 Figure 7 Computer connected to microcontroller using PCA9...

Страница 8: ...tipurpose Red TH Red Multipurpose Testpoint Keystone 5010 2 TP3 TP5 Test Point Multipurpose Yellow TH Yellow Multipurpose Testpoint Keystone 5014 2 TP4 TP6 Test Point Multipurpose Blue TH Blue Multipurpose Testpoint Keystone 5127 1 TP7 Test Point Multipurpose White TH White Multipurpose Testpoint Keystone 5012 3 TP8 TP9 P10 Test Point Multipurpose Black TH Black Multipurpose Testpoint Keystone 501...

Страница 9: ...y 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 are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repair such EVM or provide replacements Repaired EVMs shall be warr...

Страница 10: ...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 greater than the maximum gain indicated for that type are strictly prohibited for use with this device Concernant les EVMs avec antennes détachables Conformément à la réglementation d Industrie Canada le présent émetteur radio peut fo...

Страница 11: ...ed loads Any loads applied outside of the specified output range may also result in unintended and or inaccurate operation and or possible permanent damage to the EVM and or interface electronics Please consult 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 ...

Страница 12: ...COST 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 USE LOSS OF DATA OR BUSINESS INTERRUPTION NO CLAIM SUIT OR ACTION SHALL BE BROUGHT AGAINST TI MORE THAN TWELVE 12 MONTHS AFTER THE EVENT THAT GAVE RISE TO THE CAUSE OF ACTION HAS OCCURRED 8 2 Specif...

Страница 13: ...se resources are subject to 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...

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