Alarm tone generator reference design TIDA-010040 (ACTIVE)

Description & Features

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Key Document

Description

This reference design provides a way of generating alarms similar to as described in the IEC60601-1-8 standard for medical devices. The critical timing parameters are programmable through firmware. All parameters, including pulse width, pulse rate, internal frequency, pulse rise time, volume control, and priority, are controlled using firmware. The analog envelope is generated by a combination of the MSP430FR2311 and analog circuitry.

Features
  • Provides a mechanism to generate auditory alarm tones with programmable timing and frequency
  • Outputs low-, medium-, and high-priority alarms with software-adjustable rise/fall time, pulse duration, pulse spacing, and burst spacing
  • Adjustable volume control
  • Powered by USB port on PC
  • Outputs 8 different alarm melodies
  • Coincidence detector confirms if speaker is outputting correct sound

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Schematic/Block Diagram

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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
LM393-N  Low Power Low Offset Voltage Dual Comparator  Amplifiers  Sample & Buy Not Available
SN74AHCT1G86  Single 2-Input Exclusive-OR Gate  Gate  Sample & Buy Not Available
TLV704  24V Input Voltage, 150mA, Ultra-Low-Iq Low-Dropout (LDO) Regulators  Power management  Sample & Buy View Design Kits & Evaluation Modules
TLV9062  10-MHz, low-noise, RRIO, CMOS operational amplifier for cost-sensitive systems   Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TMUX1072  2-channel 2:1 analog multiplexer with 20-V overvoltage protection  Switches & multiplexers  Sample & Buy View Design Kits & Evaluation Modules
TPA2005D1  1.4-W Mono Class-D Audio Amplifier (TPA2005)  Audio amplifiers  Sample & Buy View Design Kits & Evaluation Modules
TS5A23157  Dual 10-Ohm SPDT Analog Switch  Switches & multiplexers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM393-N Download Download
Download Download
SN74AHCT1G86 Download Download
Download Download
TLV704 Download Download
TLV9062 Download Download
Download Download
Download Download
Download Download
Download
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TMUX1072 Download
Download
TPA2005D1 Download Download
Download Download
(GQY) | 15 Download -
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TS5A23157 Download Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 18122 21 Dec 2018
Design files (6)
Title Type Size (KB) Date
ZIP 926 21 Dec 2018
ZIP 2104 21 Dec 2018
PDF 885 21 Dec 2018
PDF 198 21 Dec 2018
PDF 68 21 Dec 2018
PDF 371 21 Dec 2018
Related Tools & Software

Design Kits & Evaluation Modules  ( 1 )

Name Part Number Tool Type
MSP430FR2311 LaunchPad™ development kit  MSP-EXP430FR2311  Evaluation Modules & Boards 

Software (1)



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