Optical Heart Rate Monitor Reference Design with BLE Connectivity
TIDA-00011
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Description

This reference design is for a complete Optical Heart Rate Monitor wrist watch (no chest strap!) end equipment featuring TI signal chain, power, and connectivity components. With TI's AFE4400 AFE, you can accelerate and simplify your wrist based HRM design while still ensuring measurement performance needed for serious Fitness designs. 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 veins in wrists
  • MSP430F5528 MCU for holding algorithm and motion cancellation calibration data
  • BLE module connection featuring TI's CC2541
  • This design is tested and provides everything 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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TI Devices (8)

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Part Number Name Product Family Sample & Buy 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  Microcontrollers (MCU)  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
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  Wide VIN, 150-mA, 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)
AFE4400 Download Download
BQ24072 Download Download
BQ27425-G1 Download -
CC2541 Download Download
MSP430F5528 Download Download
Download -
Download -
TPS61093 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

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 1476 28 Aug 2013
Design files (4)
Title Type Size (KB) Date
PDF 70 17 Jul 2014
PDF 223 17 Jul 2014
ZIP 3708 28 Aug 2013
PDF 123 28 Aug 2013
Related Tools & Software

Software (1)


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