Biometric Steering Wheel Reference Design

(ACTIVE) TIDA-00292

Description & Features

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Description

This reference design is for a concept demonstration of how a driver's pulse rate, respiration rate, and ECG based heart rate can be obtained from a vehicle steering wheel.  AFE4400 and AFE4300 from TI's biometric family of analog front-ends (AFE), enables acquisition of all three parameters via simple hand contacts on the steering wheel. This reference design also includes a full BLE connectivity design for easy interface to BLE enabled smartphones, tablets, etc

Features
  • Features AFE4400 for measuring pulse from the palm
  • Features AFE4300 for measuring heart rate and respiration rate
  • MSP430F5528 MCU for holding algorithm data for each measurement
  • BLE module connection featuring TI's CC2541
  • This design is tested and provides everthing you need to complete your design including Schematics, Layout and Gerber files, and BOM

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Schematic/Block Diagram

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Test Data

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Design Files

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Bill of Materials (BOM)

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TI Devices (10)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
AFE4300  Weigh Scale / Body Composition Analog Front End  Medical AFEs  Sample & Buy View Design Kits & Evaluation Modules
AFE4400  Integrated Analog Front End (AFE) for Heart-Rate Monitors and Low-Cost Pulse Oximeters  Medical AFEs  Sample & Buy View Design Kits & Evaluation Modules
BQ24072  USB-Friendly Li-Ion Battery Charger and Power-Path Management IC, Vout 200mV above Vbat | Linear  Battery management  Sample & Buy View Design Kits & Evaluation Modules
BQ27425-G1  System-Side Impedance Track™ Fuel Gauge With Direct Battery Connection | Gas Gauge Battery  Battery management  Not Available Not Available
CC2541  Bluetooth low energy and proprietary wireless MCU  SimpleLink Solutions  Sample & Buy View Design Kits & Evaluation Modules
MSP430F5528  25 MHz MCU with Integrated USB Phy, 128KB Flash, 8KB RAM, 12Bit/10 Channel ADC, 32BIT HW Multiplier  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
TPS61093  Low Input, 20V/1.1A Step-Up DC/DC Converter with Integrated Power Diode and Input/Output Isolation  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules
TPS735  500mA, Adjustable, Low Quiescent Current, Low-Noise, High-PSRR, Single-Output LDO Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS736  Single Output LDO, 400mA, Adj.(1.2 to 5.5V), Cap free, Low Noise, Reverse Current Protection  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A49  Vin 3V to 36V, 150mA, Ultra-Low-Noise, High-PSRR Low-Dropout (LDO) Linear Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
AFE4300 Download Download
AFE4400 Download Download
BQ24072 Download Download
BQ27425-G1 Download -
CC2541 Download Download
MSP430F5528 Download Download
Download -
Download -
TPS61093 Download Download
TPS735 Download Download
Download Download
TPS736 Download Download
Download Download
Download Download
TPS7A49 Download Download
Download Download

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Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 1483 07 Aug 2014 55
Design files (4)
Title Abstract Type Size (KB) Date Views
ZIP 1520 07 Aug 2014 17
ZIP 5840 07 Aug 2014 21
PDF 120 07 Aug 2014 28
PDF 1034 07 Aug 2014 58

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