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STMicroelectronics AEK-AUD-D903V1 Automotive Audio Amplifier Board is configured to evaluate the operation of the FDA903D digital input automotive power amplifier, with load current monitoring and wide voltage operation range. The FDA903D Amplifier can also be interfaced with the SPC582B Chorus Automotive MCU to provide Electric Vehicle Warning Sounds (or Acoustic Vehicle Alerting Systems, AVAS) solutions.
The AVAS system is required by new vehicles to alert pedestrians of the presence of electric-powered vehicles generating much less noise. Warning sounds may be driver triggered (like a horn) or automatic mimicking engine sounds. In 2021 according to government regulations, the vehicle must make a continuous noise level of at least 56dBA (within 2 meters) if the car is going 20km/h (12mph) or slower and a maximum of 75dBA.
The STM AEK-AUD-D903V1 Automotive Audio Amplifier Board with the AEK-MCU-C1MLIT1 hosting SPC582B Chorus automotive microcontroller offers a viable, low-cost solution for entry-level AVAS systems.
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