Alarm tone generator reference design
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 frequencyOutputs low-: medium-: and high-priority alarms with software-adjustable rise/fall time: pulse duration: pulse spacing: and burst spacingAdjustable volume controlPowered by USB port on PCOutputs 8 different alarm melodiesCoincidence detector confirms if speaker is outputting correct sound
Applications
- Oscilloscopes & digitizers
- Electrocardiogram (ECG)
- Infusion pump
- Digital multimeter (DMM)
- Telehealth systems
- Fitness machine
- Wearable fitness & activity monitor
- Lab & field Instrumentation
- Medical sensor patches
Product Categories
- Amplifiers