Texas Instruments TCA9802 I2C, User Manual

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1 SLVUB32 – March 2017
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Copyright © 2017, Texas Instruments Incorporated
TCA9802 I
2
C Buffer Evaluation Module
User's Guide
SLVUB32 – March 2017
TCA9802 I
2
C Buffer Evaluation Module
The TCA9802EVM evaluation module (EVM) allows the user to connect power to and buffer and translate
I
2
C commands to the onboard slave device, TMP102. The EVM allows the designer to load and test
different capacitive loading and has the option of replacing a series resistor with an inductor to emulate the
parasitic inductance of cables. Parameters such as rise time, power consumption, and delay times can
easily and accurately be evaluated. For additional details on I
2
C buffer performance, application notes,
and the data sheet, see www.ti.com/I2C .
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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2
3 Hardware Description
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4
4 Layout
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9
4.1 Setup
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10
5 Operation
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11
6 Bill of Materials (BOM)
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12
List of Figures
1 TCA9802EVM Schematic
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3
2 TCA9802EVM Top Layout
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9
3 TCA9802EVM Bottom Layout
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9
4 Example: USB2ANY I
2
C Master Connected to the TCA9802EVM
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10
5 Vias Labeled on the TCA9802EVM
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11
List of Tables
1 Bill of Materials TCA9802EVM
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12
Trademarks
All trademarks are the property of their respective owners.