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AFE4403EVM 产品设计参考手册 - TI（德州仪器）
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TI（德州仪器）
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开发套件
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AFE4403EVM 模拟前端，用于心率监测仪和脉搏血氧计评估套件，Texas InstrumentsTexas Instruments AFE4403EVM 是评估套件，用于原型设计和测试 AFE4403。 Texas Instruments AFE4403 模拟前端 (AFE) 专门设计用于心率监测和脉搏血氧计。 它由低噪声接收器通道、ADC、振荡器和双 LED 驱动器组成，带集成故障检测。 使用其 SPI 接口连接外部微控制器或主机处理器。 AFE4403 封装在紧凑的 36 引脚 DSBGA (3.07 x 3.07 x 0.5 mm) 中，带 –20 °C 至 70 °C 的宽工作温度范围。**套件包括：** \- AFE4403EVM 演示套件 \- USB 至微型 USB 电缆 \- DB9 至 8 引脚管座传感器电缆 \- NJRC NJL5310R 传感器板 \- Osram SFH7050 传感器板 ### 模拟前端 (AFE)，Texas Instruments
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引脚图在P36P37Hot
原理图在P29P55P56P57P58P59P60P61P62P63P64P65
应用领域在P70P73
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AFE4403EVM数据手册
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若手册格式错乱，请下载阅览PDF原文件
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 .................................................................................................... 4
1.1 Important Disclaimer Information ................................................................................. 4
2 Overview...................................................................................................................... 5
2.1 Introduction .......................................................................................................... 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...................................................................................................... 19
4.1 Overview of the Features ........................................................................................ 19
5 AFE4403EVM Hardware .................................................................................................. 29
5.1 Power Supply ...................................................................................................... 30
5.2 Clock................................................................................................................ 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................................................................................. 35
8.2 Micro-USB Connector ............................................................................................ 36
8.3 8-Pin Connector ................................................................................................... 37
9 AFE4403EVM Reflective Sensing Quick Start Guide ................................................................. 37
10 AFE4403EVM FAQs....................................................................................................... 41
10.1 EVM communicating with the PC application.................................................................. 41
10.2 ADC_RDY signal.................................................................................................. 41
10.3 Check TXP and TXN Waveforms ............................................................................... 42
10.4 Diagnostics......................................................................................................... 43
10.5 Automation of Register Read and Write Operations.......................................................... 43
10.6 Optimum Viewing Experience on Windows 7 OS............................................................. 43
10.7 Windows 8 Support for Device GUIs ........................................................................... 44
10.8 COM Port........................................................................................................... 50
1
SLAU572B–June 2014–Revised July 2014 AFE4403 Development Guide
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