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Fire & Carbon Monoxide Alarm Detector Reference Design with Low BOM Cost & Integrated Battery Backup
TIDA-01519
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Key Document

Description

This reference design is a carbon monoxide (CO) and fire alarm detector reference design which can identify typical alarm sounds, and has the wireless capabilities to alert the user if one is detected. This design is intended for home automation and "smart" environmental sensing. Once a 3kHz or 520Hz signal frequency is identified based on FFT power spectral density analysis, this system determines whether an alarm is occurring which can then be used with sensor to cloud to alert the homeowner in the case of an alarm outside of their detectible hearing range.

Features
  • 3kHz and 520Hz alarm target frequencies
  • CO and fire alarm detection
  • Low BOM cost design
  • Variable microphone gain based on proximity to alarm
  • Sub-1GHz wireless communication enabled for sensor to cloud configuration

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Design Guide

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Design Files

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TI Devices (7)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CC1310  SimpleLink™ 32-bit Arm Cortex-M3 Sub 1 GHz wireless MCU with 128kB Flash  Wireless connectivity  Sample & Buy View Design Kits & Evaluation Modules
LM2903  Dual differential comparator, automotive grade  Amplifiers  Sample & Buy Not Available
TLV2313  2-Channel, 1MHz, RRIO, low power, cost-optimized 5.5V CMOS op amp  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TPD1E10B06  Single-channel ESD in 0402 package with 10pF capacitance and 6-V breakdown  Circuit protection ICs  Sample & Buy View Design Kits & Evaluation Modules
TPS27081A  8-V, 3-A, 44-mΩ load switch with adj. rise time  Power switches  Sample & Buy Not Available
TPS780  150-mA, nano-IQ, low-dropout voltage regulator with pin-selectable, dual-level output voltage  Power management  Sample & Buy View Design Kits & Evaluation Modules
UCC28881  700-V Lowest Quiescent current off-line switcher  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CC1310 Download Download
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LM2903 Download Download
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Download -
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TLV2313 Download
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TPD1E10B06 Download Download
TPS27081A Download Download
TPS780 Download -
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UCC28881 Download Download

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Technical documentation

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

Datasheet (1)
Title Type Size (KB) Date
PDF 3906 23 Jul 2018
User guide (1)
Title Type Size (KB) Date
PDF 22195 10 Oct 2017
Design files (6)
Title Type Size (KB) Date
ZIP 2094 10 Oct 2017
ZIP 1460 10 Oct 2017
PDF 2092 10 Oct 2017
PDF 439 10 Oct 2017
PDF 19 10 Oct 2017
PDF 1493 10 Oct 2017
More literature (1)
Title Type Size (KB) Date
ZIP 5551 10 Oct 2017
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Reference Designs (2)

Name Part Number Tool Type
Humidity & Temp Sensor Node for Sub-1GHz Star Networks Enabling 10+ Year Coin Cell Battery Life  TIDA-00484  Reference design 
Low Power Wireless PIR Motion Detector Reference Design Enabling Sensor-to-Cloud Networks  TIDA-01476  Reference design 

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