User's Guide
SLAU572B – June 2014 – Revised July 2014
AFE4403 Development Guide
This user’s guide describes the characteristics, operation and use of the AFE4403EVM demonstration kit.
This demonstration kit is an evaluation module for the AFE4403 device. The family of devices are fully-
integrated AFE, ideally suited for Pulse Oximeter applications. The EVM is intended for prototyping and
evaluation. This user’s guide includes a complete circuit description, schematic diagram and bill of
materials.
The following related documents are available through the Texas Instruments web site at
www.ti.com:
Device
Literature Number
AFE4403
SBAS650
Contents
1
AFE4403EVM Overview
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4
1.1
Important Disclaimer Information
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4
2
Overview
......................................................................................................................
5
2.1
Introduction
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5
2.2
AFE4403EVM Kit Contents
........................................................................................
5
2.3
Features Supported in this Version
..............................................................................
5
3
Software Installation
.........................................................................................................
7
3.1
Minimum Requirements
............................................................................................
7
3.2
Installing the Software (PC Application)
.........................................................................
7
3.3
Installing the USB Drivers
........................................................................................
10
4
Running the Software
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19
4.1
Overview of the Features
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19
5
AFE4403EVM Hardware
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29
5.1
Power Supply
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30
5.2
Clock
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30
5.3
Accessing AFE4403 Digital Signals
............................................................................
30
5.4
USB Interface
......................................................................................................
30
5.5
On-Board Key Interface
..........................................................................................
31
5.6
Visual Indication
...................................................................................................
31
6
USB-Based Firmware Upgrade
..........................................................................................
31
7
AFE4403EVM Firmware Upgrade Without GUI
........................................................................
33
8
Connector Interface
........................................................................................................
35
8.1
DB9 Pulse Oximeter Connector
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35
8.2
Micro-USB Connector
............................................................................................
36
8.3
8-Pin Connector
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37
9
AFE4403EVM Reflective Sensing Quick Start Guide
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37
10
AFE4403EVM FAQs
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41
10.1
EVM communicating with the PC application
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41
10.2
ADC_RDY signal
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41
10.3
Check TXP and TXN Waveforms
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42
10.4
Diagnostics
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43
10.5
Automation of Register Read and Write Operations
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43
10.6
Optimum Viewing Experience on Windows 7 OS
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43
10.7
Windows 8 Support for Device GUIs
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44
10.8
COM Port
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50
1
SLAU572B – June 2014 – Revised July 2014
AFE4403 Development Guide
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